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Error: Failed to start monitoring changes - Framework 1.1

 
 
=?Utf-8?B?VGltIEQ=?=
Guest
Posts: n/a
 
      11-08-2004
Hi,

I originally posted this as a reply to a rather old thread in
dotnet.framework.general and didn't get any response. I thought it might be
more relevant here; anyone got any ideas? My questions are below...

"David Good" wrote:

> We have a network running both Win2k and Win2k3 webservers and our web sites
> reside on a UNC network share that happens to be a Network Appliance NAS.
>
> Since moving the web root to the network share on the NAS, we have been
> receiving various forms of the following error:
>
> Failed to start monitoring changes to [path]
> at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon, String dir,
> Boolean watchSubtree, UInt32 notifyFilter)
> at System.Web.DirectoryMonitor.StartMonitoring()
> at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
> FileChangeEventHandler callback, String alias)
> at System.Web.FileChangesMonitor.StartMonitoringFile( String alias,
> FileChangeEventHandler callback)
> ...
>
> We have exhausted every resource we can find but every reference, including
> the MSDN knowledgebase includes "Access Denied" along with the error and some
> security-related solution and indicates that these problems are resolved with
> the Framework v 1.1.


We have a similar setup (including the Network Appliance) and have getting
exactly the same error. We have tried changing the file permissions (the
domain account under which ASP.NET runs has full control over the
directories) and have also applied the registry settings mentioned elsewhere
in this thread; both without luck.

The root of the application in which we get the error is actually on a local
drive, but we have mapped a share on the NAS as a virtual directory
(connecting using the same domain user under which ASP.NET runs). The
virtual directory has many sub directories that are created dynamically by a
backend application. The error only ever seems to occur the first time
someone makes a request for a file, but not necessarily the first request for
a file in that directory.

As the files in the virtual directory are typically files for people to
download, we have remapped all file types to aspnet_isapi.dll and use a
HttpModule to add headers to the response so that people can do left click
downloads (that is, a left click brings up a save as dialog instead of the
browser trying to open the file). To ensure all files are treated as static
files we added the following to ~/web.config:

<location path="Files">
<system.web>
<httpHandlers>
<add verb="*" path="*" type="System.Web.StaticFileHandler"/>
</httpHandlers>
</system.web>
</location>

What I want to know is, why does ASP.NET need to monitor the directory
anyway? I suspected that it may monitor the sub directories for new or
modified web.config files and thought that adding allowOverride="false" to
the <location> section above might help. Alas, it did not.

Does anyone know of some way I can get ASP.NET to give up trying to monitor
the directories? As far as I can tell it's doing nothing but throwing errors
at completely random times.

Is there a Microsoft person out there who might be able to shed some light
on this?

Cheers,

Tim

 
Reply With Quote
 
 
 
 
Jim Cheshire [MSFT]
Guest
Posts: n/a
 
      11-09-2004
Hi Tim,

When an application domain starts up, ASP.NET begins monitoring the files
and folders where the content resides for file change notifications. That
way if a file changes in your application, the application domain can be
restarted so that the new change takes affect. This is part of the
architecture of ASP.NET and you can't change it.

The process account has to have permission to the content in order to
monitor it for changes. If you get errors such as this one, you can use a
tool such as Filemon (from http://www.sysinternals.com) or you can audit
the location.

Jim Cheshire [MSFT]
MCP+I, MCSE, MCSD, MCDBA
ASP.NET Developer Support
http://www.velocityreviews.com/forums/(E-Mail Removed)

This post is provided "AS-IS" with no warranties and confers no rights.

--------------------
| Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
| thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
| X-WBNR-Posting-Host: 202.3.78.9
| From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| Subject: Error: Failed to start monitoring changes - Framework 1.1
| Date: Sun, 7 Nov 2004 17:58:03 -0800
| Lines: 74
| Message-ID: <(E-Mail Removed)>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:274243
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
| Hi,
|
| I originally posted this as a reply to a rather old thread in
| dotnet.framework.general and didn't get any response. I thought it might
be
| more relevant here; anyone got any ideas? My questions are below...
|
| "David Good" wrote:
|
| > We have a network running both Win2k and Win2k3 webservers and our web
sites
| > reside on a UNC network share that happens to be a Network Appliance
NAS.
| >
| > Since moving the web root to the network share on the NAS, we have been
| > receiving various forms of the following error:
| >
| > Failed to start monitoring changes to [path]
| > at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon, String
dir,
| > Boolean watchSubtree, UInt32 notifyFilter)
| > at System.Web.DirectoryMonitor.StartMonitoring()
| > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
| > FileChangeEventHandler callback, String alias)
| > at System.Web.FileChangesMonitor.StartMonitoringFile( String alias,
| > FileChangeEventHandler callback)
| > ...
| >
| > We have exhausted every resource we can find but every reference,
including
| > the MSDN knowledgebase includes "Access Denied" along with the error
and some
| > security-related solution and indicates that these problems are
resolved with
| > the Framework v 1.1.
|
| We have a similar setup (including the Network Appliance) and have
getting
| exactly the same error. We have tried changing the file permissions (the
| domain account under which ASP.NET runs has full control over the
| directories) and have also applied the registry settings mentioned
elsewhere
| in this thread; both without luck.
|
| The root of the application in which we get the error is actually on a
local
| drive, but we have mapped a share on the NAS as a virtual directory
| (connecting using the same domain user under which ASP.NET runs). The
| virtual directory has many sub directories that are created dynamically
by a
| backend application. The error only ever seems to occur the first time
| someone makes a request for a file, but not necessarily the first request
for
| a file in that directory.
|
| As the files in the virtual directory are typically files for people to
| download, we have remapped all file types to aspnet_isapi.dll and use a
| HttpModule to add headers to the response so that people can do left
click
| downloads (that is, a left click brings up a save as dialog instead of
the
| browser trying to open the file). To ensure all files are treated as
static
| files we added the following to ~/web.config:
|
| <location path="Files">
| <system.web>
| <httpHandlers>
| <add verb="*" path="*" type="System.Web.StaticFileHandler"/>
| </httpHandlers>
| </system.web>
| </location>
|
| What I want to know is, why does ASP.NET need to monitor the directory
| anyway? I suspected that it may monitor the sub directories for new or
| modified web.config files and thought that adding allowOverride="false"
to
| the <location> section above might help. Alas, it did not.
|
| Does anyone know of some way I can get ASP.NET to give up trying to
monitor
| the directories? As far as I can tell it's doing nothing but throwing
errors
| at completely random times.
|
| Is there a Microsoft person out there who might be able to shed some
light
| on this?
|
| Cheers,
|
| Tim
|
|

 
Reply With Quote
 
 
 
 
=?Utf-8?B?VGltIEQ=?=
Guest
Posts: n/a
 
      11-09-2004

Hey Jim,

Thanks for your reply. I was under the impression that ASP.NET only
monitored directories for changes to .config and .dll files. As DLLs only go
in /bin and I have turned config override off for my virtual directory, it
seemed to make sense that ASP.NET would stop monitoring sub directories for
changes. Does it monitor other file types? I thought a request needed to be
made for a .aspx page in order for a restart to occur, which would suggest
that changes to .aspx files are not monitored.

Anyway, the problem isn't a permissions problem - the domain account has
permission to the files and the second request for any files that cause an
error works perfectly. The error seems to be completely random... perhaps
there's a slight lag in applying the permissions to new files or something.

Thanks for your help,

Tim

"Jim Cheshire [MSFT]" wrote:

> Hi Tim,
>
> When an application domain starts up, ASP.NET begins monitoring the files
> and folders where the content resides for file change notifications. That
> way if a file changes in your application, the application domain can be
> restarted so that the new change takes affect. This is part of the
> architecture of ASP.NET and you can't change it.
>
> The process account has to have permission to the content in order to
> monitor it for changes. If you get errors such as this one, you can use a
> tool such as Filemon (from http://www.sysinternals.com) or you can audit
> the location.
>
> Jim Cheshire [MSFT]
> MCP+I, MCSE, MCSD, MCDBA
> ASP.NET Developer Support
> (E-Mail Removed)
>
> This post is provided "AS-IS" with no warranties and confers no rights.
>
> --------------------
> | Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
> | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
> | X-WBNR-Posting-Host: 202.3.78.9
> | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | Subject: Error: Failed to start monitoring changes - Framework 1.1
> | Date: Sun, 7 Nov 2004 17:58:03 -0800
> | Lines: 74
> | Message-ID: <(E-Mail Removed)>
> | MIME-Version: 1.0
> | Content-Type: text/plain;
> | charset="Utf-8"
> | Content-Transfer-Encoding: 7bit
> | X-Newsreader: Microsoft CDO for Windows 2000
> | Content-Class: urn:content-classes:message
> | Importance: normal
> | Priority: normal
> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:274243
> | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> |
> | Hi,
> |
> | I originally posted this as a reply to a rather old thread in
> | dotnet.framework.general and didn't get any response. I thought it might
> be
> | more relevant here; anyone got any ideas? My questions are below...
> |
> | "David Good" wrote:
> |
> | > We have a network running both Win2k and Win2k3 webservers and our web
> sites
> | > reside on a UNC network share that happens to be a Network Appliance
> NAS.
> | >
> | > Since moving the web root to the network share on the NAS, we have been
> | > receiving various forms of the following error:
> | >
> | > Failed to start monitoring changes to [path]
> | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon, String
> dir,
> | > Boolean watchSubtree, UInt32 notifyFilter)
> | > at System.Web.DirectoryMonitor.StartMonitoring()
> | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
> | > FileChangeEventHandler callback, String alias)
> | > at System.Web.FileChangesMonitor.StartMonitoringFile( String alias,
> | > FileChangeEventHandler callback)
> | > ...
> | >
> | > We have exhausted every resource we can find but every reference,
> including
> | > the MSDN knowledgebase includes "Access Denied" along with the error
> and some
> | > security-related solution and indicates that these problems are
> resolved with
> | > the Framework v 1.1.
> |
> | We have a similar setup (including the Network Appliance) and have
> getting
> | exactly the same error. We have tried changing the file permissions (the
> | domain account under which ASP.NET runs has full control over the
> | directories) and have also applied the registry settings mentioned
> elsewhere
> | in this thread; both without luck.
> |
> | The root of the application in which we get the error is actually on a
> local
> | drive, but we have mapped a share on the NAS as a virtual directory
> | (connecting using the same domain user under which ASP.NET runs). The
> | virtual directory has many sub directories that are created dynamically
> by a
> | backend application. The error only ever seems to occur the first time
> | someone makes a request for a file, but not necessarily the first request
> for
> | a file in that directory.
> |
> | As the files in the virtual directory are typically files for people to
> | download, we have remapped all file types to aspnet_isapi.dll and use a
> | HttpModule to add headers to the response so that people can do left
> click
> | downloads (that is, a left click brings up a save as dialog instead of
> the
> | browser trying to open the file). To ensure all files are treated as
> static
> | files we added the following to ~/web.config:
> |
> | <location path="Files">
> | <system.web>
> | <httpHandlers>
> | <add verb="*" path="*" type="System.Web.StaticFileHandler"/>
> | </httpHandlers>
> | </system.web>
> | </location>
> |
> | What I want to know is, why does ASP.NET need to monitor the directory
> | anyway? I suspected that it may monitor the sub directories for new or
> | modified web.config files and thought that adding allowOverride="false"
> to
> | the <location> section above might help. Alas, it did not.
> |
> | Does anyone know of some way I can get ASP.NET to give up trying to
> monitor
> | the directories? As far as I can tell it's doing nothing but throwing
> errors
> | at completely random times.
> |
> | Is there a Microsoft person out there who might be able to shed some
> light
> | on this?
> |
> | Cheers,
> |
> | Tim
> |
> |
>
>

 
Reply With Quote
 
Jim Cheshire [MSFT]
Guest
Posts: n/a
 
      11-09-2004
Hi Tim,

We don't recycle the application domain when a change is made to an ASPX
page. As a matter of fact, even if the page contains inline ASP.NET code,
we will not recycle the app domain when it's recompiled. We will recompile
the new page and new users will get the new page. Old users will still use
the old page. Only after 15 recompilations (by default) will we recycle
the app domain on a recompile of inline code. You can modify this number
via the numRecompilesBeforeAppRestart attribute of the <compilation>
element in the machine.config file.

You can determine if your app is restarting by checking the Application
Restarts counter on the ASP.NET v1.1.4322 object in Perfmon. This is a
cumulative counter since the process started.

If you think you're getting an access denied due to recompilation as a
timing issue, you can add a delayNotificationTimeout attribute to your
httpRuntime element in the machine.config file and set it to 60. For
example:

<httpRuntime delayNotificationTimeout="60" />

That will often correct such problems.

Jim Cheshire [MSFT]
MCP+I, MCSE, MCSD, MCDBA
ASP.NET Developer Support
(E-Mail Removed)

This post is provided "AS-IS" with no warranties and confers no rights.


--------------------
| Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
| thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
| X-WBNR-Posting-Host: 202.3.78.9
| From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| References: <(E-Mail Removed)>
<(E-Mail Removed)>
| Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| Date: Tue, 9 Nov 2004 13:53:04 -0800
| Lines: 162
| Message-ID: <(E-Mail Removed)>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:274860
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
|
| Hey Jim,
|
| Thanks for your reply. I was under the impression that ASP.NET only
| monitored directories for changes to .config and .dll files. As DLLs
only go
| in /bin and I have turned config override off for my virtual directory,
it
| seemed to make sense that ASP.NET would stop monitoring sub directories
for
| changes. Does it monitor other file types? I thought a request needed
to be
| made for a .aspx page in order for a restart to occur, which would
suggest
| that changes to .aspx files are not monitored.
|
| Anyway, the problem isn't a permissions problem - the domain account has
| permission to the files and the second request for any files that cause
an
| error works perfectly. The error seems to be completely random...
perhaps
| there's a slight lag in applying the permissions to new files or
something.
|
| Thanks for your help,
|
| Tim
|
| "Jim Cheshire [MSFT]" wrote:
|
| > Hi Tim,
| >
| > When an application domain starts up, ASP.NET begins monitoring the
files
| > and folders where the content resides for file change notifications.
That
| > way if a file changes in your application, the application domain can
be
| > restarted so that the new change takes affect. This is part of the
| > architecture of ASP.NET and you can't change it.
| >
| > The process account has to have permission to the content in order to
| > monitor it for changes. If you get errors such as this one, you can
use a
| > tool such as Filemon (from http://www.sysinternals.com) or you can
audit
| > the location.
| >
| > Jim Cheshire [MSFT]
| > MCP+I, MCSE, MCSD, MCDBA
| > ASP.NET Developer Support
| > (E-Mail Removed)
| >
| > This post is provided "AS-IS" with no warranties and confers no rights.
| >
| > --------------------
| > | Thread-Topic: Error: Failed to start monitoring changes - Framework
1.1
| > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
| > | X-WBNR-Posting-Host: 202.3.78.9
| > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | Subject: Error: Failed to start monitoring changes - Framework 1.1
| > | Date: Sun, 7 Nov 2004 17:58:03 -0800
| > | Lines: 74
| > | Message-ID: <(E-Mail Removed)>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
| > | X-Newsreader: Microsoft CDO for Windows 2000
| > | Content-Class: urn:content-classes:message
| > | Importance: normal
| > | Priority: normal
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | Xref: cpmsftngxa10.phx.gbl
microsoft.public.dotnet.framework.aspnet:274243
| > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > |
| > | Hi,
| > |
| > | I originally posted this as a reply to a rather old thread in
| > | dotnet.framework.general and didn't get any response. I thought it
might
| > be
| > | more relevant here; anyone got any ideas? My questions are below...
| > |
| > | "David Good" wrote:
| > |
| > | > We have a network running both Win2k and Win2k3 webservers and our
web
| > sites
| > | > reside on a UNC network share that happens to be a Network
Appliance
| > NAS.
| > | >
| > | > Since moving the web root to the network share on the NAS, we have
been
| > | > receiving various forms of the following error:
| > | >
| > | > Failed to start monitoring changes to [path]
| > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon,
String
| > dir,
| > | > Boolean watchSubtree, UInt32 notifyFilter)
| > | > at System.Web.DirectoryMonitor.StartMonitoring()
| > | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
| > | > FileChangeEventHandler callback, String alias)
| > | > at System.Web.FileChangesMonitor.StartMonitoringFile( String alias,
| > | > FileChangeEventHandler callback)
| > | > ...
| > | >
| > | > We have exhausted every resource we can find but every reference,
| > including
| > | > the MSDN knowledgebase includes "Access Denied" along with the
error
| > and some
| > | > security-related solution and indicates that these problems are
| > resolved with
| > | > the Framework v 1.1.
| > |
| > | We have a similar setup (including the Network Appliance) and have
| > getting
| > | exactly the same error. We have tried changing the file permissions
(the
| > | domain account under which ASP.NET runs has full control over the
| > | directories) and have also applied the registry settings mentioned
| > elsewhere
| > | in this thread; both without luck.
| > |
| > | The root of the application in which we get the error is actually on
a
| > local
| > | drive, but we have mapped a share on the NAS as a virtual directory
| > | (connecting using the same domain user under which ASP.NET runs).
The
| > | virtual directory has many sub directories that are created
dynamically
| > by a
| > | backend application. The error only ever seems to occur the first
time
| > | someone makes a request for a file, but not necessarily the first
request
| > for
| > | a file in that directory.
| > |
| > | As the files in the virtual directory are typically files for people
to
| > | download, we have remapped all file types to aspnet_isapi.dll and use
a
| > | HttpModule to add headers to the response so that people can do left
| > click
| > | downloads (that is, a left click brings up a save as dialog instead
of
| > the
| > | browser trying to open the file). To ensure all files are treated as
| > static
| > | files we added the following to ~/web.config:
| > |
| > | <location path="Files">
| > | <system.web>
| > | <httpHandlers>
| > | <add verb="*" path="*"
type="System.Web.StaticFileHandler"/>
| > | </httpHandlers>
| > | </system.web>
| > | </location>
| > |
| > | What I want to know is, why does ASP.NET need to monitor the
directory
| > | anyway? I suspected that it may monitor the sub directories for new
or
| > | modified web.config files and thought that adding
allowOverride="false"
| > to
| > | the <location> section above might help. Alas, it did not.
| > |
| > | Does anyone know of some way I can get ASP.NET to give up trying to
| > monitor
| > | the directories? As far as I can tell it's doing nothing but
throwing
| > errors
| > | at completely random times.
| > |
| > | Is there a Microsoft person out there who might be able to shed some
| > light
| > | on this?
| > |
| > | Cheers,
| > |
| > | Tim
| > |
| > |
| >
| >
|

 
Reply With Quote
 
=?Utf-8?B?VGltIEQ=?=
Guest
Posts: n/a
 
      11-10-2004

Hi,

I let perfmon run for two hours or so without seeing any application
restarts, but decided to give delayNotificationTimeout a try anyway (none of
the counters seem to work). I thought it had fixed it, but alas, later on
the errors starting getting logged again. Is it enough to put it in the
web.config, or do I need to put it into machine.config?

The files in the directories that are being monitored are all JPEGs, MPEGs,
MP3s, WAVs etc - surely ASP.NET doesn't care about such files (?).

One other strange thing I noticed is that sometimes the errors occur in
pairs - one on each of the web servers for different files in the same
directory (we have a page that displays 8 storyboard images that reside in
the virtual directory). The images for an asset are synchronously copied
across to the virtual directory (if they're not already there) when the page
is requested... that's why it seems to me that perhaps there is a slight lag
before the NAS sets permissions properly.

Tim

"Jim Cheshire [MSFT]" wrote:

> Hi Tim,
>
> We don't recycle the application domain when a change is made to an ASPX
> page. As a matter of fact, even if the page contains inline ASP.NET code,
> we will not recycle the app domain when it's recompiled. We will recompile
> the new page and new users will get the new page. Old users will still use
> the old page. Only after 15 recompilations (by default) will we recycle
> the app domain on a recompile of inline code. You can modify this number
> via the numRecompilesBeforeAppRestart attribute of the <compilation>
> element in the machine.config file.
>
> You can determine if your app is restarting by checking the Application
> Restarts counter on the ASP.NET v1.1.4322 object in Perfmon. This is a
> cumulative counter since the process started.
>
> If you think you're getting an access denied due to recompilation as a
> timing issue, you can add a delayNotificationTimeout attribute to your
> httpRuntime element in the machine.config file and set it to 60. For
> example:
>
> <httpRuntime delayNotificationTimeout="60" />
>
> That will often correct such problems.
>
> Jim Cheshire [MSFT]
> MCP+I, MCSE, MCSD, MCDBA
> ASP.NET Developer Support
> (E-Mail Removed)
>
> This post is provided "AS-IS" with no warranties and confers no rights.
>
>
> --------------------
> | Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
> | thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
> | X-WBNR-Posting-Host: 202.3.78.9
> | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | References: <(E-Mail Removed)>
> <(E-Mail Removed)>
> | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
> | Date: Tue, 9 Nov 2004 13:53:04 -0800
> | Lines: 162
> | Message-ID: <(E-Mail Removed)>
> | MIME-Version: 1.0
> | Content-Type: text/plain;
> | charset="Utf-8"
> | Content-Transfer-Encoding: 7bit
> | X-Newsreader: Microsoft CDO for Windows 2000
> | Content-Class: urn:content-classes:message
> | Importance: normal
> | Priority: normal
> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:274860
> | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> |
> |
> | Hey Jim,
> |
> | Thanks for your reply. I was under the impression that ASP.NET only
> | monitored directories for changes to .config and .dll files. As DLLs
> only go
> | in /bin and I have turned config override off for my virtual directory,
> it
> | seemed to make sense that ASP.NET would stop monitoring sub directories
> for
> | changes. Does it monitor other file types? I thought a request needed
> to be
> | made for a .aspx page in order for a restart to occur, which would
> suggest
> | that changes to .aspx files are not monitored.
> |
> | Anyway, the problem isn't a permissions problem - the domain account has
> | permission to the files and the second request for any files that cause
> an
> | error works perfectly. The error seems to be completely random...
> perhaps
> | there's a slight lag in applying the permissions to new files or
> something.
> |
> | Thanks for your help,
> |
> | Tim
> |
> | "Jim Cheshire [MSFT]" wrote:
> |
> | > Hi Tim,
> | >
> | > When an application domain starts up, ASP.NET begins monitoring the
> files
> | > and folders where the content resides for file change notifications.
> That
> | > way if a file changes in your application, the application domain can
> be
> | > restarted so that the new change takes affect. This is part of the
> | > architecture of ASP.NET and you can't change it.
> | >
> | > The process account has to have permission to the content in order to
> | > monitor it for changes. If you get errors such as this one, you can
> use a
> | > tool such as Filemon (from http://www.sysinternals.com) or you can
> audit
> | > the location.
> | >
> | > Jim Cheshire [MSFT]
> | > MCP+I, MCSE, MCSD, MCDBA
> | > ASP.NET Developer Support
> | > (E-Mail Removed)
> | >
> | > This post is provided "AS-IS" with no warranties and confers no rights.
> | >
> | > --------------------
> | > | Thread-Topic: Error: Failed to start monitoring changes - Framework
> 1.1
> | > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
> | > | X-WBNR-Posting-Host: 202.3.78.9
> | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | > | Subject: Error: Failed to start monitoring changes - Framework 1.1
> | > | Date: Sun, 7 Nov 2004 17:58:03 -0800
> | > | Lines: 74
> | > | Message-ID: <(E-Mail Removed)>
> | > | MIME-Version: 1.0
> | > | Content-Type: text/plain;
> | > | charset="Utf-8"
> | > | Content-Transfer-Encoding: 7bit
> | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | Content-Class: urn:content-classes:message
> | > | Importance: normal
> | > | Priority: normal
> | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | > | Xref: cpmsftngxa10.phx.gbl
> microsoft.public.dotnet.framework.aspnet:274243
> | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> | > |
> | > | Hi,
> | > |
> | > | I originally posted this as a reply to a rather old thread in
> | > | dotnet.framework.general and didn't get any response. I thought it
> might
> | > be
> | > | more relevant here; anyone got any ideas? My questions are below...
> | > |
> | > | "David Good" wrote:
> | > |
> | > | > We have a network running both Win2k and Win2k3 webservers and our
> web
> | > sites
> | > | > reside on a UNC network share that happens to be a Network
> Appliance
> | > NAS.
> | > | >
> | > | > Since moving the web root to the network share on the NAS, we have
> been
> | > | > receiving various forms of the following error:
> | > | >
> | > | > Failed to start monitoring changes to [path]
> | > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon,
> String
> | > dir,
> | > | > Boolean watchSubtree, UInt32 notifyFilter)
> | > | > at System.Web.DirectoryMonitor.StartMonitoring()
> | > | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
> | > | > FileChangeEventHandler callback, String alias)
> | > | > at System.Web.FileChangesMonitor.StartMonitoringFile( String alias,
> | > | > FileChangeEventHandler callback)
> | > | > ...
> | > | >
> | > | > We have exhausted every resource we can find but every reference,
> | > including
> | > | > the MSDN knowledgebase includes "Access Denied" along with the
> error
> | > and some
> | > | > security-related solution and indicates that these problems are
> | > resolved with
> | > | > the Framework v 1.1.
> | > |
> | > | We have a similar setup (including the Network Appliance) and have
> | > getting
> | > | exactly the same error. We have tried changing the file permissions
> (the
> | > | domain account under which ASP.NET runs has full control over the
> | > | directories) and have also applied the registry settings mentioned
> | > elsewhere
> | > | in this thread; both without luck.
> | > |
> | > | The root of the application in which we get the error is actually on
> a
> | > local
> | > | drive, but we have mapped a share on the NAS as a virtual directory
> | > | (connecting using the same domain user under which ASP.NET runs).
> The
> | > | virtual directory has many sub directories that are created
> dynamically
> | > by a
> | > | backend application. The error only ever seems to occur the first
> time
> | > | someone makes a request for a file, but not necessarily the first
> request
> | > for
> | > | a file in that directory.
> | > |
> | > | As the files in the virtual directory are typically files for people
> to
> | > | download, we have remapped all file types to aspnet_isapi.dll and use
> a
> | > | HttpModule to add headers to the response so that people can do left
> | > click
> | > | downloads (that is, a left click brings up a save as dialog instead
> of
> | > the
> | > | browser trying to open the file). To ensure all files are treated as
> | > static
> | > | files we added the following to ~/web.config:
> | > |
> | > | <location path="Files">
> | > | <system.web>
> | > | <httpHandlers>
> | > | <add verb="*" path="*"
> type="System.Web.StaticFileHandler"/>
> | > | </httpHandlers>
> | > | </system.web>
> | > | </location>
> | > |
> | > | What I want to know is, why does ASP.NET need to monitor the
> directory
> | > | anyway? I suspected that it may monitor the sub directories for new
> or
> | > | modified web.config files and thought that adding
> allowOverride="false"
> | > to
> | > | the <location> section above might help. Alas, it did not.
> | > |
> | > | Does anyone know of some way I can get ASP.NET to give up trying to
> | > monitor
> | > | the directories? As far as I can tell it's doing nothing but
> throwing
> | > errors
> | > | at completely random times.
> | > |
> | > | Is there a Microsoft person out there who might be able to shed some
> | > light
> | > | on this?
> | > |
> | > | Cheers,
> | > |
> | > | Tim
> | > |
> | > |
> | >
> | >
> |
>
>

 
Reply With Quote
 
Jim Cheshire [MSFT]
Guest
Posts: n/a
 
      11-10-2004
Hi Tim,

No, ASP.NET doesn't care about image files, etc. unless you have mapped
those file types to aspnet_isapi.dll. I suspect you haven't.

I would just forget all of this and download Filemon from SysInternals and
figure out where you're being denied access.

Jim Cheshire [MSFT]
MCP+I, MCSE, MCSD, MCDBA
ASP.NET Developer Support
(E-Mail Removed)

This post is provided "AS-IS" with no warranties and confers no rights.


--------------------
| Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
| thread-index: AcTHcnLvRQ+Gwk0AS5KQteLCyO9yjw==
| X-WBNR-Posting-Host: 202.3.78.9
| From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| References: <(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
| Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| Date: Wed, 10 Nov 2004 14:13:04 -0800
| Lines: 282
| Message-ID: <(E-Mail Removed)>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:275148
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
|
| Hi,
|
| I let perfmon run for two hours or so without seeing any application
| restarts, but decided to give delayNotificationTimeout a try anyway (none
of
| the counters seem to work). I thought it had fixed it, but alas, later
on
| the errors starting getting logged again. Is it enough to put it in the
| web.config, or do I need to put it into machine.config?
|
| The files in the directories that are being monitored are all JPEGs,
MPEGs,
| MP3s, WAVs etc - surely ASP.NET doesn't care about such files (?).
|
| One other strange thing I noticed is that sometimes the errors occur in
| pairs - one on each of the web servers for different files in the same
| directory (we have a page that displays 8 storyboard images that reside
in
| the virtual directory). The images for an asset are synchronously copied
| across to the virtual directory (if they're not already there) when the
page
| is requested... that's why it seems to me that perhaps there is a slight
lag
| before the NAS sets permissions properly.
|
| Tim
|
| "Jim Cheshire [MSFT]" wrote:
|
| > Hi Tim,
| >
| > We don't recycle the application domain when a change is made to an
ASPX
| > page. As a matter of fact, even if the page contains inline ASP.NET
code,
| > we will not recycle the app domain when it's recompiled. We will
recompile
| > the new page and new users will get the new page. Old users will still
use
| > the old page. Only after 15 recompilations (by default) will we
recycle
| > the app domain on a recompile of inline code. You can modify this
number
| > via the numRecompilesBeforeAppRestart attribute of the <compilation>
| > element in the machine.config file.
| >
| > You can determine if your app is restarting by checking the Application
| > Restarts counter on the ASP.NET v1.1.4322 object in Perfmon. This is a
| > cumulative counter since the process started.
| >
| > If you think you're getting an access denied due to recompilation as a
| > timing issue, you can add a delayNotificationTimeout attribute to your
| > httpRuntime element in the machine.config file and set it to 60. For
| > example:
| >
| > <httpRuntime delayNotificationTimeout="60" />
| >
| > That will often correct such problems.
| >
| > Jim Cheshire [MSFT]
| > MCP+I, MCSE, MCSD, MCDBA
| > ASP.NET Developer Support
| > (E-Mail Removed)
| >
| > This post is provided "AS-IS" with no warranties and confers no rights.
| >
| >
| > --------------------
| > | Thread-Topic: Error: Failed to start monitoring changes - Framework
1.1
| > | thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
| > | X-WBNR-Posting-Host: 202.3.78.9
| > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | References: <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| > | Date: Tue, 9 Nov 2004 13:53:04 -0800
| > | Lines: 162
| > | Message-ID: <(E-Mail Removed)>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
| > | X-Newsreader: Microsoft CDO for Windows 2000
| > | Content-Class: urn:content-classes:message
| > | Importance: normal
| > | Priority: normal
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | Xref: cpmsftngxa10.phx.gbl
microsoft.public.dotnet.framework.aspnet:274860
| > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > |
| > |
| > | Hey Jim,
| > |
| > | Thanks for your reply. I was under the impression that ASP.NET only
| > | monitored directories for changes to .config and .dll files. As DLLs
| > only go
| > | in /bin and I have turned config override off for my virtual
directory,
| > it
| > | seemed to make sense that ASP.NET would stop monitoring sub
directories
| > for
| > | changes. Does it monitor other file types? I thought a request
needed
| > to be
| > | made for a .aspx page in order for a restart to occur, which would
| > suggest
| > | that changes to .aspx files are not monitored.
| > |
| > | Anyway, the problem isn't a permissions problem - the domain account
has
| > | permission to the files and the second request for any files that
cause
| > an
| > | error works perfectly. The error seems to be completely random...
| > perhaps
| > | there's a slight lag in applying the permissions to new files or
| > something.
| > |
| > | Thanks for your help,
| > |
| > | Tim
| > |
| > | "Jim Cheshire [MSFT]" wrote:
| > |
| > | > Hi Tim,
| > | >
| > | > When an application domain starts up, ASP.NET begins monitoring the
| > files
| > | > and folders where the content resides for file change
notifications.
| > That
| > | > way if a file changes in your application, the application domain
can
| > be
| > | > restarted so that the new change takes affect. This is part of the
| > | > architecture of ASP.NET and you can't change it.
| > | >
| > | > The process account has to have permission to the content in order
to
| > | > monitor it for changes. If you get errors such as this one, you
can
| > use a
| > | > tool such as Filemon (from http://www.sysinternals.com) or you can
| > audit
| > | > the location.
| > | >
| > | > Jim Cheshire [MSFT]
| > | > MCP+I, MCSE, MCSD, MCDBA
| > | > ASP.NET Developer Support
| > | > (E-Mail Removed)
| > | >
| > | > This post is provided "AS-IS" with no warranties and confers no
rights.
| > | >
| > | > --------------------
| > | > | Thread-Topic: Error: Failed to start monitoring changes -
Framework
| > 1.1
| > | > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
| > | > | X-WBNR-Posting-Host: 202.3.78.9
| > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | > | Subject: Error: Failed to start monitoring changes - Framework 1.1
| > | > | Date: Sun, 7 Nov 2004 17:58:03 -0800
| > | > | Lines: 74
| > | > | Message-ID: <(E-Mail Removed)>
| > | > | MIME-Version: 1.0
| > | > | Content-Type: text/plain;
| > | > | charset="Utf-8"
| > | > | Content-Transfer-Encoding: 7bit
| > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | Content-Class: urn:content-classes:message
| > | > | Importance: normal
| > | > | Priority: normal
| > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | Xref: cpmsftngxa10.phx.gbl
| > microsoft.public.dotnet.framework.aspnet:274243
| > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > | > |
| > | > | Hi,
| > | > |
| > | > | I originally posted this as a reply to a rather old thread in
| > | > | dotnet.framework.general and didn't get any response. I thought
it
| > might
| > | > be
| > | > | more relevant here; anyone got any ideas? My questions are
below...
| > | > |
| > | > | "David Good" wrote:
| > | > |
| > | > | > We have a network running both Win2k and Win2k3 webservers and
our
| > web
| > | > sites
| > | > | > reside on a UNC network share that happens to be a Network
| > Appliance
| > | > NAS.
| > | > | >
| > | > | > Since moving the web root to the network share on the NAS, we
have
| > been
| > | > | > receiving various forms of the following error:
| > | > | >
| > | > | > Failed to start monitoring changes to [path]
| > | > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon,
| > String
| > | > dir,
| > | > | > Boolean watchSubtree, UInt32 notifyFilter)
| > | > | > at System.Web.DirectoryMonitor.StartMonitoring()
| > | > | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
| > | > | > FileChangeEventHandler callback, String alias)
| > | > | > at System.Web.FileChangesMonitor.StartMonitoringFile( String
alias,
| > | > | > FileChangeEventHandler callback)
| > | > | > ...
| > | > | >
| > | > | > We have exhausted every resource we can find but every
reference,
| > | > including
| > | > | > the MSDN knowledgebase includes "Access Denied" along with the
| > error
| > | > and some
| > | > | > security-related solution and indicates that these problems are
| > | > resolved with
| > | > | > the Framework v 1.1.
| > | > |
| > | > | We have a similar setup (including the Network Appliance) and
have
| > | > getting
| > | > | exactly the same error. We have tried changing the file
permissions
| > (the
| > | > | domain account under which ASP.NET runs has full control over the
| > | > | directories) and have also applied the registry settings
mentioned
| > | > elsewhere
| > | > | in this thread; both without luck.
| > | > |
| > | > | The root of the application in which we get the error is actually
on
| > a
| > | > local
| > | > | drive, but we have mapped a share on the NAS as a virtual
directory
| > | > | (connecting using the same domain user under which ASP.NET runs).

| > The
| > | > | virtual directory has many sub directories that are created
| > dynamically
| > | > by a
| > | > | backend application. The error only ever seems to occur the
first
| > time
| > | > | someone makes a request for a file, but not necessarily the first
| > request
| > | > for
| > | > | a file in that directory.
| > | > |
| > | > | As the files in the virtual directory are typically files for
people
| > to
| > | > | download, we have remapped all file types to aspnet_isapi.dll and
use
| > a
| > | > | HttpModule to add headers to the response so that people can do
left
| > | > click
| > | > | downloads (that is, a left click brings up a save as dialog
instead
| > of
| > | > the
| > | > | browser trying to open the file). To ensure all files are
treated as
| > | > static
| > | > | files we added the following to ~/web.config:
| > | > |
| > | > | <location path="Files">
| > | > | <system.web>
| > | > | <httpHandlers>
| > | > | <add verb="*" path="*"
| > type="System.Web.StaticFileHandler"/>
| > | > | </httpHandlers>
| > | > | </system.web>
| > | > | </location>
| > | > |
| > | > | What I want to know is, why does ASP.NET need to monitor the
| > directory
| > | > | anyway? I suspected that it may monitor the sub directories for
new
| > or
| > | > | modified web.config files and thought that adding
| > allowOverride="false"
| > | > to
| > | > | the <location> section above might help. Alas, it did not.
| > | > |
| > | > | Does anyone know of some way I can get ASP.NET to give up trying
to
| > | > monitor
| > | > | the directories? As far as I can tell it's doing nothing but
| > throwing
| > | > errors
| > | > | at completely random times.
| > | > |
| > | > | Is there a Microsoft person out there who might be able to shed
some
| > | > light
| > | > | on this?
| > | > |
| > | > | Cheers,
| > | > |
| > | > | Tim
| > | > |
| > | > |
| > | >
| > | >
| > |
| >
| >
|

 
Reply With Quote
 
=?Utf-8?B?VGltIEQ=?=
Guest
Posts: n/a
 
      11-11-2004

Howdy,

Well perhaps that is the problem, then. As I said in my original post, we
are mapping all file types for that application to aspnet_isapi.dll. The
reason we do this is to add headers to the response (content disposition)
with a HttpModule to allow people to download the files with a left click and
also provide a more friendly file name when they save. Is there a better
way of doing this other than writing my own ISAPI filter?

Cheers,

Tim


"Jim Cheshire [MSFT]" wrote:

> Hi Tim,
>
> No, ASP.NET doesn't care about image files, etc. unless you have mapped
> those file types to aspnet_isapi.dll. I suspect you haven't.
>
> I would just forget all of this and download Filemon from SysInternals and
> figure out where you're being denied access.
>
> Jim Cheshire [MSFT]
> MCP+I, MCSE, MCSD, MCDBA
> ASP.NET Developer Support
> (E-Mail Removed)
>
> This post is provided "AS-IS" with no warranties and confers no rights.
>
>
> --------------------
> | Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
> | thread-index: AcTHcnLvRQ+Gwk0AS5KQteLCyO9yjw==
> | X-WBNR-Posting-Host: 202.3.78.9
> | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | References: <(E-Mail Removed)>
> <(E-Mail Removed)>
> <(E-Mail Removed)>
> <(E-Mail Removed)>
> | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
> | Date: Wed, 10 Nov 2004 14:13:04 -0800
> | Lines: 282
> | Message-ID: <(E-Mail Removed)>
> | MIME-Version: 1.0
> | Content-Type: text/plain;
> | charset="Utf-8"
> | Content-Transfer-Encoding: 7bit
> | X-Newsreader: Microsoft CDO for Windows 2000
> | Content-Class: urn:content-classes:message
> | Importance: normal
> | Priority: normal
> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:275148
> | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> |
> |
> | Hi,
> |
> | I let perfmon run for two hours or so without seeing any application
> | restarts, but decided to give delayNotificationTimeout a try anyway (none
> of
> | the counters seem to work). I thought it had fixed it, but alas, later
> on
> | the errors starting getting logged again. Is it enough to put it in the
> | web.config, or do I need to put it into machine.config?
> |
> | The files in the directories that are being monitored are all JPEGs,
> MPEGs,
> | MP3s, WAVs etc - surely ASP.NET doesn't care about such files (?).
> |
> | One other strange thing I noticed is that sometimes the errors occur in
> | pairs - one on each of the web servers for different files in the same
> | directory (we have a page that displays 8 storyboard images that reside
> in
> | the virtual directory). The images for an asset are synchronously copied
> | across to the virtual directory (if they're not already there) when the
> page
> | is requested... that's why it seems to me that perhaps there is a slight
> lag
> | before the NAS sets permissions properly.
> |
> | Tim
> |
> | "Jim Cheshire [MSFT]" wrote:
> |
> | > Hi Tim,
> | >
> | > We don't recycle the application domain when a change is made to an
> ASPX
> | > page. As a matter of fact, even if the page contains inline ASP.NET
> code,
> | > we will not recycle the app domain when it's recompiled. We will
> recompile
> | > the new page and new users will get the new page. Old users will still
> use
> | > the old page. Only after 15 recompilations (by default) will we
> recycle
> | > the app domain on a recompile of inline code. You can modify this
> number
> | > via the numRecompilesBeforeAppRestart attribute of the <compilation>
> | > element in the machine.config file.
> | >
> | > You can determine if your app is restarting by checking the Application
> | > Restarts counter on the ASP.NET v1.1.4322 object in Perfmon. This is a
> | > cumulative counter since the process started.
> | >
> | > If you think you're getting an access denied due to recompilation as a
> | > timing issue, you can add a delayNotificationTimeout attribute to your
> | > httpRuntime element in the machine.config file and set it to 60. For
> | > example:
> | >
> | > <httpRuntime delayNotificationTimeout="60" />
> | >
> | > That will often correct such problems.
> | >
> | > Jim Cheshire [MSFT]
> | > MCP+I, MCSE, MCSD, MCDBA
> | > ASP.NET Developer Support
> | > (E-Mail Removed)
> | >
> | > This post is provided "AS-IS" with no warranties and confers no rights.
> | >
> | >
> | > --------------------
> | > | Thread-Topic: Error: Failed to start monitoring changes - Framework
> 1.1
> | > | thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
> | > | X-WBNR-Posting-Host: 202.3.78.9
> | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | > | References: <(E-Mail Removed)>
> | > <(E-Mail Removed)>
> | > | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
> | > | Date: Tue, 9 Nov 2004 13:53:04 -0800
> | > | Lines: 162
> | > | Message-ID: <(E-Mail Removed)>
> | > | MIME-Version: 1.0
> | > | Content-Type: text/plain;
> | > | charset="Utf-8"
> | > | Content-Transfer-Encoding: 7bit
> | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | Content-Class: urn:content-classes:message
> | > | Importance: normal
> | > | Priority: normal
> | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | > | Xref: cpmsftngxa10.phx.gbl
> microsoft.public.dotnet.framework.aspnet:274860
> | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> | > |
> | > |
> | > | Hey Jim,
> | > |
> | > | Thanks for your reply. I was under the impression that ASP.NET only
> | > | monitored directories for changes to .config and .dll files. As DLLs
> | > only go
> | > | in /bin and I have turned config override off for my virtual
> directory,
> | > it
> | > | seemed to make sense that ASP.NET would stop monitoring sub
> directories
> | > for
> | > | changes. Does it monitor other file types? I thought a request
> needed
> | > to be
> | > | made for a .aspx page in order for a restart to occur, which would
> | > suggest
> | > | that changes to .aspx files are not monitored.
> | > |
> | > | Anyway, the problem isn't a permissions problem - the domain account
> has
> | > | permission to the files and the second request for any files that
> cause
> | > an
> | > | error works perfectly. The error seems to be completely random...
> | > perhaps
> | > | there's a slight lag in applying the permissions to new files or
> | > something.
> | > |
> | > | Thanks for your help,
> | > |
> | > | Tim
> | > |
> | > | "Jim Cheshire [MSFT]" wrote:
> | > |
> | > | > Hi Tim,
> | > | >
> | > | > When an application domain starts up, ASP.NET begins monitoring the
> | > files
> | > | > and folders where the content resides for file change
> notifications.
> | > That
> | > | > way if a file changes in your application, the application domain
> can
> | > be
> | > | > restarted so that the new change takes affect. This is part of the
> | > | > architecture of ASP.NET and you can't change it.
> | > | >
> | > | > The process account has to have permission to the content in order
> to
> | > | > monitor it for changes. If you get errors such as this one, you
> can
> | > use a
> | > | > tool such as Filemon (from http://www.sysinternals.com) or you can
> | > audit
> | > | > the location.
> | > | >
> | > | > Jim Cheshire [MSFT]
> | > | > MCP+I, MCSE, MCSD, MCDBA
> | > | > ASP.NET Developer Support
> | > | > (E-Mail Removed)
> | > | >
> | > | > This post is provided "AS-IS" with no warranties and confers no
> rights.
> | > | >
> | > | > --------------------
> | > | > | Thread-Topic: Error: Failed to start monitoring changes -
> Framework
> | > 1.1
> | > | > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
> | > | > | X-WBNR-Posting-Host: 202.3.78.9
> | > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | > | > | Subject: Error: Failed to start monitoring changes - Framework 1.1
> | > | > | Date: Sun, 7 Nov 2004 17:58:03 -0800
> | > | > | Lines: 74
> | > | > | Message-ID: <(E-Mail Removed)>
> | > | > | MIME-Version: 1.0
> | > | > | Content-Type: text/plain;
> | > | > | charset="Utf-8"
> | > | > | Content-Transfer-Encoding: 7bit
> | > | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | > | Content-Class: urn:content-classes:message
> | > | > | Importance: normal
> | > | > | Priority: normal
> | > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | > | > | Xref: cpmsftngxa10.phx.gbl
> | > microsoft.public.dotnet.framework.aspnet:274243
> | > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> | > | > |
> | > | > | Hi,
> | > | > |
> | > | > | I originally posted this as a reply to a rather old thread in
> | > | > | dotnet.framework.general and didn't get any response. I thought
> it
> | > might
> | > | > be
> | > | > | more relevant here; anyone got any ideas? My questions are
> below...
> | > | > |
> | > | > | "David Good" wrote:
> | > | > |
> | > | > | > We have a network running both Win2k and Win2k3 webservers and
> our
> | > web
> | > | > sites
> | > | > | > reside on a UNC network share that happens to be a Network
> | > Appliance
> | > | > NAS.
> | > | > | >
> | > | > | > Since moving the web root to the network share on the NAS, we
> have
> | > been
> | > | > | > receiving various forms of the following error:
> | > | > | >
> | > | > | > Failed to start monitoring changes to [path]
> | > | > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor dirMon,
> | > String
> | > | > dir,
> | > | > | > Boolean watchSubtree, UInt32 notifyFilter)
> | > | > | > at System.Web.DirectoryMonitor.StartMonitoring()
> | > | > | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring file,
> | > | > | > FileChangeEventHandler callback, String alias)
> | > | > | > at System.Web.FileChangesMonitor.StartMonitoringFile( String
> alias,
> | > | > | > FileChangeEventHandler callback)
> | > | > | > ...
> | > | > | >
> | > | > | > We have exhausted every resource we can find but every
> reference,
> | > | > including
> | > | > | > the MSDN knowledgebase includes "Access Denied" along with the
> | > error
> | > | > and some
> | > | > | > security-related solution and indicates that these problems are
> | > | > resolved with
> | > | > | > the Framework v 1.1.
> | > | > |
> | > | > | We have a similar setup (including the Network Appliance) and
> have
> | > | > getting
> | > | > | exactly the same error. We have tried changing the file
> permissions
> | > (the
> | > | > | domain account under which ASP.NET runs has full control over the
> | > | > | directories) and have also applied the registry settings
> mentioned
> | > | > elsewhere
> | > | > | in this thread; both without luck.
> | > | > |
> | > | > | The root of the application in which we get the error is actually
> on
> | > a
> | > | > local
> | > | > | drive, but we have mapped a share on the NAS as a virtual
> directory
> | > | > | (connecting using the same domain user under which ASP.NET runs).
>
> | > The
> | > | > | virtual directory has many sub directories that are created
> | > dynamically
> | > | > by a
> | > | > | backend application. The error only ever seems to occur the
> first
> | > time
> | > | > | someone makes a request for a file, but not necessarily the first
> | > request
> | > | > for
> | > | > | a file in that directory.
> | > | > |
> | > | > | As the files in the virtual directory are typically files for
> people
> | > to
> | > | > | download, we have remapped all file types to aspnet_isapi.dll and
> use
> | > a
> | > | > | HttpModule to add headers to the response so that people can do
> left
> | > | > click
> | > | > | downloads (that is, a left click brings up a save as dialog
> instead
> | > of
> | > | > the
> | > | > | browser trying to open the file). To ensure all files are
> treated as
> | > | > static
> | > | > | files we added the following to ~/web.config:
> | > | > |
> | > | > | <location path="Files">
> | > | > | <system.web>
> | > | > | <httpHandlers>
> | > | > | <add verb="*" path="*"
> | > type="System.Web.StaticFileHandler"/>
> | > | > | </httpHandlers>
> | > | > | </system.web>
> | > | > | </location>
> | > | > |
> | > | > | What I want to know is, why does ASP.NET need to monitor the
> | > directory
> | > | > | anyway? I suspected that it may monitor the sub directories for
> new
> | > or
> | > | > | modified web.config files and thought that adding
> | > allowOverride="false"
> | > | > to
> | > | > | the <location> section above might help. Alas, it did not.
> | > | > |
> | > | > | Does anyone know of some way I can get ASP.NET to give up trying
> to
> | > | > monitor
> | > | > | the directories? As far as I can tell it's doing nothing but
> | > throwing
> | > | > errors
> | > | > | at completely random times.
> | > | > |
> | > | > | Is there a Microsoft person out there who might be able to shed
> some
> | > | > light
> | > | > | on this?
> | > | > |
> | > | > | Cheers,
> | > | > |
> | > | > | Tim
> | > | > |
> | > | > |
> | > | >
> | > | >
> | > |
> | >
> | >
> |
>
>

 
Reply With Quote
 
Jim Cheshire [MSFT]
Guest
Posts: n/a
 
      11-11-2004
Hi Tim,

Sorry for missing that in your post. I actually read it originally, but I
forgot it by the time I posted my last response.

I think the only issue you are having is the error when trying to monitor
directory changes. If that's the case, I think you should simply run
Filemon and find out exactly who is being denied access to what and see if
it is an ACLs issue.

Jim Cheshire [MSFT]
MCP+I, MCSE, MCSD, MCDBA
ASP.NET Developer Support
(E-Mail Removed)

This post is provided "AS-IS" with no warranties and confers no rights.

--------------------
| Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
| thread-index: AcTHhgO6u2rbkRInTluGNwyV3lUxTw==
| X-WBNR-Posting-Host: 202.3.78.9
| From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| References: <(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
| Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| Date: Wed, 10 Nov 2004 16:33:07 -0800
| Lines: 392
| Message-ID: <(E-Mail Removed)>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:275195
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
|
| Howdy,
|
| Well perhaps that is the problem, then. As I said in my original post,
we
| are mapping all file types for that application to aspnet_isapi.dll. The
| reason we do this is to add headers to the response (content disposition)
| with a HttpModule to allow people to download the files with a left click
and
| also provide a more friendly file name when they save. Is there a
better
| way of doing this other than writing my own ISAPI filter?
|
| Cheers,
|
| Tim
|
|
| "Jim Cheshire [MSFT]" wrote:
|
| > Hi Tim,
| >
| > No, ASP.NET doesn't care about image files, etc. unless you have mapped
| > those file types to aspnet_isapi.dll. I suspect you haven't.
| >
| > I would just forget all of this and download Filemon from SysInternals
and
| > figure out where you're being denied access.
| >
| > Jim Cheshire [MSFT]
| > MCP+I, MCSE, MCSD, MCDBA
| > ASP.NET Developer Support
| > (E-Mail Removed)
| >
| > This post is provided "AS-IS" with no warranties and confers no rights.
| >
| >
| > --------------------
| > | Thread-Topic: Error: Failed to start monitoring changes - Framework
1.1
| > | thread-index: AcTHcnLvRQ+Gwk0AS5KQteLCyO9yjw==
| > | X-WBNR-Posting-Host: 202.3.78.9
| > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | References: <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| > | Date: Wed, 10 Nov 2004 14:13:04 -0800
| > | Lines: 282
| > | Message-ID: <(E-Mail Removed)>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
| > | X-Newsreader: Microsoft CDO for Windows 2000
| > | Content-Class: urn:content-classes:message
| > | Importance: normal
| > | Priority: normal
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | Xref: cpmsftngxa10.phx.gbl
microsoft.public.dotnet.framework.aspnet:275148
| > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > |
| > |
| > | Hi,
| > |
| > | I let perfmon run for two hours or so without seeing any application
| > | restarts, but decided to give delayNotificationTimeout a try anyway
(none
| > of
| > | the counters seem to work). I thought it had fixed it, but alas,
later
| > on
| > | the errors starting getting logged again. Is it enough to put it in
the
| > | web.config, or do I need to put it into machine.config?
| > |
| > | The files in the directories that are being monitored are all JPEGs,
| > MPEGs,
| > | MP3s, WAVs etc - surely ASP.NET doesn't care about such files (?).
| > |
| > | One other strange thing I noticed is that sometimes the errors occur
in
| > | pairs - one on each of the web servers for different files in the
same
| > | directory (we have a page that displays 8 storyboard images that
reside
| > in
| > | the virtual directory). The images for an asset are synchronously
copied
| > | across to the virtual directory (if they're not already there) when
the
| > page
| > | is requested... that's why it seems to me that perhaps there is a
slight
| > lag
| > | before the NAS sets permissions properly.
| > |
| > | Tim
| > |
| > | "Jim Cheshire [MSFT]" wrote:
| > |
| > | > Hi Tim,
| > | >
| > | > We don't recycle the application domain when a change is made to an
| > ASPX
| > | > page. As a matter of fact, even if the page contains inline
ASP.NET
| > code,
| > | > we will not recycle the app domain when it's recompiled. We will
| > recompile
| > | > the new page and new users will get the new page. Old users will
still
| > use
| > | > the old page. Only after 15 recompilations (by default) will we
| > recycle
| > | > the app domain on a recompile of inline code. You can modify this
| > number
| > | > via the numRecompilesBeforeAppRestart attribute of the
<compilation>
| > | > element in the machine.config file.
| > | >
| > | > You can determine if your app is restarting by checking the
Application
| > | > Restarts counter on the ASP.NET v1.1.4322 object in Perfmon. This
is a
| > | > cumulative counter since the process started.
| > | >
| > | > If you think you're getting an access denied due to recompilation
as a
| > | > timing issue, you can add a delayNotificationTimeout attribute to
your
| > | > httpRuntime element in the machine.config file and set it to 60.
For
| > | > example:
| > | >
| > | > <httpRuntime delayNotificationTimeout="60" />
| > | >
| > | > That will often correct such problems.
| > | >
| > | > Jim Cheshire [MSFT]
| > | > MCP+I, MCSE, MCSD, MCDBA
| > | > ASP.NET Developer Support
| > | > (E-Mail Removed)
| > | >
| > | > This post is provided "AS-IS" with no warranties and confers no
rights.
| > | >
| > | >
| > | > --------------------
| > | > | Thread-Topic: Error: Failed to start monitoring changes -
Framework
| > 1.1
| > | > | thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
| > | > | X-WBNR-Posting-Host: 202.3.78.9
| > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | > | References: <(E-Mail Removed)>
| > | > <(E-Mail Removed)>
| > | > | Subject: RE: Error: Failed to start monitoring changes -
Framework 1.1
| > | > | Date: Tue, 9 Nov 2004 13:53:04 -0800
| > | > | Lines: 162
| > | > | Message-ID: <(E-Mail Removed)>
| > | > | MIME-Version: 1.0
| > | > | Content-Type: text/plain;
| > | > | charset="Utf-8"
| > | > | Content-Transfer-Encoding: 7bit
| > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | Content-Class: urn:content-classes:message
| > | > | Importance: normal
| > | > | Priority: normal
| > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | Xref: cpmsftngxa10.phx.gbl
| > microsoft.public.dotnet.framework.aspnet:274860
| > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > | > |
| > | > |
| > | > | Hey Jim,
| > | > |
| > | > | Thanks for your reply. I was under the impression that ASP.NET
only
| > | > | monitored directories for changes to .config and .dll files. As
DLLs
| > | > only go
| > | > | in /bin and I have turned config override off for my virtual
| > directory,
| > | > it
| > | > | seemed to make sense that ASP.NET would stop monitoring sub
| > directories
| > | > for
| > | > | changes. Does it monitor other file types? I thought a request
| > needed
| > | > to be
| > | > | made for a .aspx page in order for a restart to occur, which
would
| > | > suggest
| > | > | that changes to .aspx files are not monitored.
| > | > |
| > | > | Anyway, the problem isn't a permissions problem - the domain
account
| > has
| > | > | permission to the files and the second request for any files that
| > cause
| > | > an
| > | > | error works perfectly. The error seems to be completely
random...
| > | > perhaps
| > | > | there's a slight lag in applying the permissions to new files or
| > | > something.
| > | > |
| > | > | Thanks for your help,
| > | > |
| > | > | Tim
| > | > |
| > | > | "Jim Cheshire [MSFT]" wrote:
| > | > |
| > | > | > Hi Tim,
| > | > | >
| > | > | > When an application domain starts up, ASP.NET begins monitoring
the
| > | > files
| > | > | > and folders where the content resides for file change
| > notifications.
| > | > That
| > | > | > way if a file changes in your application, the application
domain
| > can
| > | > be
| > | > | > restarted so that the new change takes affect. This is part of
the
| > | > | > architecture of ASP.NET and you can't change it.
| > | > | >
| > | > | > The process account has to have permission to the content in
order
| > to
| > | > | > monitor it for changes. If you get errors such as this one,
you
| > can
| > | > use a
| > | > | > tool such as Filemon (from http://www.sysinternals.com) or you
can
| > | > audit
| > | > | > the location.
| > | > | >
| > | > | > Jim Cheshire [MSFT]
| > | > | > MCP+I, MCSE, MCSD, MCDBA
| > | > | > ASP.NET Developer Support
| > | > | > (E-Mail Removed)
| > | > | >
| > | > | > This post is provided "AS-IS" with no warranties and confers no
| > rights.
| > | > | >
| > | > | > --------------------
| > | > | > | Thread-Topic: Error: Failed to start monitoring changes -
| > Framework
| > | > 1.1
| > | > | > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
| > | > | > | X-WBNR-Posting-Host: 202.3.78.9
| > | > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | > | > | Subject: Error: Failed to start monitoring changes -
Framework 1.1
| > | > | > | Date: Sun, 7 Nov 2004 17:58:03 -0800
| > | > | > | Lines: 74
| > | > | > | Message-ID:
<(E-Mail Removed)>
| > | > | > | MIME-Version: 1.0
| > | > | > | Content-Type: text/plain;
| > | > | > | charset="Utf-8"
| > | > | > | Content-Transfer-Encoding: 7bit
| > | > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | > | Content-Class: urn:content-classes:message
| > | > | > | Importance: normal
| > | > | > | Priority: normal
| > | > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | > | Xref: cpmsftngxa10.phx.gbl
| > | > microsoft.public.dotnet.framework.aspnet:274243
| > | > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > | > | > |
| > | > | > | Hi,
| > | > | > |
| > | > | > | I originally posted this as a reply to a rather old thread in
| > | > | > | dotnet.framework.general and didn't get any response. I
thought
| > it
| > | > might
| > | > | > be
| > | > | > | more relevant here; anyone got any ideas? My questions are
| > below...
| > | > | > |
| > | > | > | "David Good" wrote:
| > | > | > |
| > | > | > | > We have a network running both Win2k and Win2k3 webservers
and
| > our
| > | > web
| > | > | > sites
| > | > | > | > reside on a UNC network share that happens to be a Network
| > | > Appliance
| > | > | > NAS.
| > | > | > | >
| > | > | > | > Since moving the web root to the network share on the NAS,
we
| > have
| > | > been
| > | > | > | > receiving various forms of the following error:
| > | > | > | >
| > | > | > | > Failed to start monitoring changes to [path]
| > | > | > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor
dirMon,
| > | > String
| > | > | > dir,
| > | > | > | > Boolean watchSubtree, UInt32 notifyFilter)
| > | > | > | > at System.Web.DirectoryMonitor.StartMonitoring()
| > | > | > | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring
file,
| > | > | > | > FileChangeEventHandler callback, String alias)
| > | > | > | > at System.Web.FileChangesMonitor.StartMonitoringFile( String
| > alias,
| > | > | > | > FileChangeEventHandler callback)
| > | > | > | > ...
| > | > | > | >
| > | > | > | > We have exhausted every resource we can find but every
| > reference,
| > | > | > including
| > | > | > | > the MSDN knowledgebase includes "Access Denied" along with
the
| > | > error
| > | > | > and some
| > | > | > | > security-related solution and indicates that these problems
are
| > | > | > resolved with
| > | > | > | > the Framework v 1.1.
| > | > | > |
| > | > | > | We have a similar setup (including the Network Appliance) and
| > have
| > | > | > getting
| > | > | > | exactly the same error. We have tried changing the file
| > permissions
| > | > (the
| > | > | > | domain account under which ASP.NET runs has full control over
the
| > | > | > | directories) and have also applied the registry settings
| > mentioned
| > | > | > elsewhere
| > | > | > | in this thread; both without luck.
| > | > | > |
| > | > | > | The root of the application in which we get the error is
actually
| > on
| > | > a
| > | > | > local
| > | > | > | drive, but we have mapped a share on the NAS as a virtual
| > directory
| > | > | > | (connecting using the same domain user under which ASP.NET
runs).
| >
| > | > The
| > | > | > | virtual directory has many sub directories that are created
| > | > dynamically
| > | > | > by a
| > | > | > | backend application. The error only ever seems to occur the
| > first
| > | > time
| > | > | > | someone makes a request for a file, but not necessarily the
first
| > | > request
| > | > | > for
| > | > | > | a file in that directory.
| > | > | > |
| > | > | > | As the files in the virtual directory are typically files for
| > people
| > | > to
| > | > | > | download, we have remapped all file types to aspnet_isapi.dll
and
| > use
| > | > a
| > | > | > | HttpModule to add headers to the response so that people can
do
| > left
| > | > | > click
| > | > | > | downloads (that is, a left click brings up a save as dialog
| > instead
| > | > of
| > | > | > the
| > | > | > | browser trying to open the file). To ensure all files are
| > treated as
| > | > | > static
| > | > | > | files we added the following to ~/web.config:
| > | > | > |
| > | > | > | <location path="Files">
| > | > | > | <system.web>
| > | > | > | <httpHandlers>
| > | > | > | <add verb="*" path="*"
| > | > type="System.Web.StaticFileHandler"/>
| > | > | > | </httpHandlers>
| > | > | > | </system.web>
| > | > | > | </location>
| > | > | > |
| > | > | > | What I want to know is, why does ASP.NET need to monitor the
| > | > directory
| > | > | > | anyway? I suspected that it may monitor the sub directories
for
| > new
| > | > or
| > | > | > | modified web.config files and thought that adding
| > | > allowOverride="false"
| > | > | > to
| > | > | > | the <location> section above might help. Alas, it did not.
| > | > | > |
| > | > | > | Does anyone know of some way I can get ASP.NET to give up
trying
| > to
| > | > | > monitor
| > | > | > | the directories? As far as I can tell it's doing nothing but
| > | > throwing
| > | > | > errors
| > | > | > | at completely random times.
| > | > | > |
| > | > | > | Is there a Microsoft person out there who might be able to
shed
| > some
| > | > | > light
| > | > | > | on this?
| > | > | > |
| > | > | > | Cheers,
| > | > | > |
| > | > | > | Tim
| > | > | > |
| > | > | > |
| > | > | >
| > | > | >
| > | > |
| > | >
| > | >
| > |
| >
| >
|

 
Reply With Quote
 
=?Utf-8?B?VGltIEQ=?=
Guest
Posts: n/a
 
      11-11-2004

Hi Jim,

I tried Filemon and managed to catch a few errors, but the problem is that
it's very hard to tell the difference between the requests that have raised
the error and those that have not.

For each file, the process seems to be that inetinfo reads the file, then
aspnet_wp tried to find web.configs in the directory if it is new, then tries
to read the requested file (with far fewer events logged than for a
successful file). I am connecting to the virtual directory using the same
domain account that aspnet runs under.

Almost all of the requests for the directories are successful. There are
two problems (pasted below) the first happens several times, the second
(which I assume is the problem) just once:

9:15:21
AM aspnet_wp.exe:1584 IRP_MJ_QUERY_INFORMATION \\server\files\downloads\BWM\20041105 INVALID PARAMETER FileNetworkOpenInformation

9:15:21
AM aspnet_wp.exe:1584 IRP_MJ_DIRECTORY_CONTROL \\server\files\downloads\BWM\20041105 TOO MANY COMMANDS Change Notify

Could this be due to an incompatibility in the NetApp?

I think I'll just have to try doing a Response.Redirect back to the file
when I catch these exceptions.

Thanks for your help,

Tim

"Jim Cheshire [MSFT]" wrote:

> Hi Tim,
>
> Sorry for missing that in your post. I actually read it originally, but I
> forgot it by the time I posted my last response.
>
> I think the only issue you are having is the error when trying to monitor
> directory changes. If that's the case, I think you should simply run
> Filemon and find out exactly who is being denied access to what and see if
> it is an ACLs issue.
>
> Jim Cheshire [MSFT]
> MCP+I, MCSE, MCSD, MCDBA
> ASP.NET Developer Support
> (E-Mail Removed)
>
> This post is provided "AS-IS" with no warranties and confers no rights.
>
> --------------------
> | Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
> | thread-index: AcTHhgO6u2rbkRInTluGNwyV3lUxTw==
> | X-WBNR-Posting-Host: 202.3.78.9
> | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | References: <(E-Mail Removed)>
> <(E-Mail Removed)>
> <(E-Mail Removed)>
> <(E-Mail Removed)>
> <(E-Mail Removed)>
> <(E-Mail Removed)>
> | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
> | Date: Wed, 10 Nov 2004 16:33:07 -0800
> | Lines: 392
> | Message-ID: <(E-Mail Removed)>
> | MIME-Version: 1.0
> | Content-Type: text/plain;
> | charset="Utf-8"
> | Content-Transfer-Encoding: 7bit
> | X-Newsreader: Microsoft CDO for Windows 2000
> | Content-Class: urn:content-classes:message
> | Importance: normal
> | Priority: normal
> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:275195
> | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> |
> |
> | Howdy,
> |
> | Well perhaps that is the problem, then. As I said in my original post,
> we
> | are mapping all file types for that application to aspnet_isapi.dll. The
> | reason we do this is to add headers to the response (content disposition)
> | with a HttpModule to allow people to download the files with a left click
> and
> | also provide a more friendly file name when they save. Is there a
> better
> | way of doing this other than writing my own ISAPI filter?
> |
> | Cheers,
> |
> | Tim
> |
> |
> | "Jim Cheshire [MSFT]" wrote:
> |
> | > Hi Tim,
> | >
> | > No, ASP.NET doesn't care about image files, etc. unless you have mapped
> | > those file types to aspnet_isapi.dll. I suspect you haven't.
> | >
> | > I would just forget all of this and download Filemon from SysInternals
> and
> | > figure out where you're being denied access.
> | >
> | > Jim Cheshire [MSFT]
> | > MCP+I, MCSE, MCSD, MCDBA
> | > ASP.NET Developer Support
> | > (E-Mail Removed)
> | >
> | > This post is provided "AS-IS" with no warranties and confers no rights.
> | >
> | >
> | > --------------------
> | > | Thread-Topic: Error: Failed to start monitoring changes - Framework
> 1.1
> | > | thread-index: AcTHcnLvRQ+Gwk0AS5KQteLCyO9yjw==
> | > | X-WBNR-Posting-Host: 202.3.78.9
> | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | > | References: <(E-Mail Removed)>
> | > <(E-Mail Removed)>
> | > <(E-Mail Removed)>
> | > <(E-Mail Removed)>
> | > | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
> | > | Date: Wed, 10 Nov 2004 14:13:04 -0800
> | > | Lines: 282
> | > | Message-ID: <(E-Mail Removed)>
> | > | MIME-Version: 1.0
> | > | Content-Type: text/plain;
> | > | charset="Utf-8"
> | > | Content-Transfer-Encoding: 7bit
> | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | Content-Class: urn:content-classes:message
> | > | Importance: normal
> | > | Priority: normal
> | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | > | Xref: cpmsftngxa10.phx.gbl
> microsoft.public.dotnet.framework.aspnet:275148
> | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> | > |
> | > |
> | > | Hi,
> | > |
> | > | I let perfmon run for two hours or so without seeing any application
> | > | restarts, but decided to give delayNotificationTimeout a try anyway
> (none
> | > of
> | > | the counters seem to work). I thought it had fixed it, but alas,
> later
> | > on
> | > | the errors starting getting logged again. Is it enough to put it in
> the
> | > | web.config, or do I need to put it into machine.config?
> | > |
> | > | The files in the directories that are being monitored are all JPEGs,
> | > MPEGs,
> | > | MP3s, WAVs etc - surely ASP.NET doesn't care about such files (?).
> | > |
> | > | One other strange thing I noticed is that sometimes the errors occur
> in
> | > | pairs - one on each of the web servers for different files in the
> same
> | > | directory (we have a page that displays 8 storyboard images that
> reside
> | > in
> | > | the virtual directory). The images for an asset are synchronously
> copied
> | > | across to the virtual directory (if they're not already there) when
> the
> | > page
> | > | is requested... that's why it seems to me that perhaps there is a
> slight
> | > lag
> | > | before the NAS sets permissions properly.
> | > |
> | > | Tim
> | > |
> | > | "Jim Cheshire [MSFT]" wrote:
> | > |
> | > | > Hi Tim,
> | > | >
> | > | > We don't recycle the application domain when a change is made to an
> | > ASPX
> | > | > page. As a matter of fact, even if the page contains inline
> ASP.NET
> | > code,
> | > | > we will not recycle the app domain when it's recompiled. We will
> | > recompile
> | > | > the new page and new users will get the new page. Old users will
> still
> | > use
> | > | > the old page. Only after 15 recompilations (by default) will we
> | > recycle
> | > | > the app domain on a recompile of inline code. You can modify this
> | > number
> | > | > via the numRecompilesBeforeAppRestart attribute of the
> <compilation>
> | > | > element in the machine.config file.
> | > | >
> | > | > You can determine if your app is restarting by checking the
> Application
> | > | > Restarts counter on the ASP.NET v1.1.4322 object in Perfmon. This
> is a
> | > | > cumulative counter since the process started.
> | > | >
> | > | > If you think you're getting an access denied due to recompilation
> as a
> | > | > timing issue, you can add a delayNotificationTimeout attribute to
> your
> | > | > httpRuntime element in the machine.config file and set it to 60.
> For
> | > | > example:
> | > | >
> | > | > <httpRuntime delayNotificationTimeout="60" />
> | > | >
> | > | > That will often correct such problems.
> | > | >
> | > | > Jim Cheshire [MSFT]
> | > | > MCP+I, MCSE, MCSD, MCDBA
> | > | > ASP.NET Developer Support
> | > | > (E-Mail Removed)
> | > | >
> | > | > This post is provided "AS-IS" with no warranties and confers no
> rights.
> | > | >
> | > | >
> | > | > --------------------
> | > | > | Thread-Topic: Error: Failed to start monitoring changes -
> Framework
> | > 1.1
> | > | > | thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
> | > | > | X-WBNR-Posting-Host: 202.3.78.9
> | > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | > | > | References: <(E-Mail Removed)>
> | > | > <(E-Mail Removed)>
> | > | > | Subject: RE: Error: Failed to start monitoring changes -
> Framework 1.1
> | > | > | Date: Tue, 9 Nov 2004 13:53:04 -0800
> | > | > | Lines: 162
> | > | > | Message-ID: <(E-Mail Removed)>
> | > | > | MIME-Version: 1.0
> | > | > | Content-Type: text/plain;
> | > | > | charset="Utf-8"
> | > | > | Content-Transfer-Encoding: 7bit
> | > | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | > | Content-Class: urn:content-classes:message
> | > | > | Importance: normal
> | > | > | Priority: normal
> | > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | > | > | Xref: cpmsftngxa10.phx.gbl
> | > microsoft.public.dotnet.framework.aspnet:274860
> | > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> | > | > |
> | > | > |
> | > | > | Hey Jim,
> | > | > |
> | > | > | Thanks for your reply. I was under the impression that ASP.NET
> only
> | > | > | monitored directories for changes to .config and .dll files. As
> DLLs
> | > | > only go
> | > | > | in /bin and I have turned config override off for my virtual
> | > directory,
> | > | > it
> | > | > | seemed to make sense that ASP.NET would stop monitoring sub
> | > directories
> | > | > for
> | > | > | changes. Does it monitor other file types? I thought a request
> | > needed
> | > | > to be
> | > | > | made for a .aspx page in order for a restart to occur, which
> would
> | > | > suggest
> | > | > | that changes to .aspx files are not monitored.
> | > | > |
> | > | > | Anyway, the problem isn't a permissions problem - the domain
> account
> | > has
> | > | > | permission to the files and the second request for any files that
> | > cause
> | > | > an
> | > | > | error works perfectly. The error seems to be completely
> random...
> | > | > perhaps
> | > | > | there's a slight lag in applying the permissions to new files or
> | > | > something.
> | > | > |
> | > | > | Thanks for your help,
> | > | > |
> | > | > | Tim
> | > | > |
> | > | > | "Jim Cheshire [MSFT]" wrote:
> | > | > |
> | > | > | > Hi Tim,
> | > | > | >
> | > | > | > When an application domain starts up, ASP.NET begins monitoring
> the
> | > | > files
> | > | > | > and folders where the content resides for file change
> | > notifications.
> | > | > That
> | > | > | > way if a file changes in your application, the application
> domain
> | > can
> | > | > be
> | > | > | > restarted so that the new change takes affect. This is part of
> the
> | > | > | > architecture of ASP.NET and you can't change it.
> | > | > | >
> | > | > | > The process account has to have permission to the content in
> order
> | > to
> | > | > | > monitor it for changes. If you get errors such as this one,
> you
> | > can
> | > | > use a
> | > | > | > tool such as Filemon (from http://www.sysinternals.com) or you
> can
> | > | > audit
> | > | > | > the location.
> | > | > | >
> | > | > | > Jim Cheshire [MSFT]
> | > | > | > MCP+I, MCSE, MCSD, MCDBA
> | > | > | > ASP.NET Developer Support
> | > | > | > (E-Mail Removed)
> | > | > | >
> | > | > | > This post is provided "AS-IS" with no warranties and confers no
> | > rights.
> | > | > | >
> | > | > | > --------------------
> | > | > | > | Thread-Topic: Error: Failed to start monitoring changes -
> | > Framework
> | > | > 1.1
> | > | > | > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
> | > | > | > | X-WBNR-Posting-Host: 202.3.78.9
> | > | > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
> | > | > | > | Subject: Error: Failed to start monitoring changes -
> Framework 1.1
> | > | > | > | Date: Sun, 7 Nov 2004 17:58:03 -0800
> | > | > | > | Lines: 74
> | > | > | > | Message-ID:
> <(E-Mail Removed)>
> | > | > | > | MIME-Version: 1.0
> | > | > | > | Content-Type: text/plain;
> | > | > | > | charset="Utf-8"
> | > | > | > | Content-Transfer-Encoding: 7bit
> | > | > | > | X-Newsreader: Microsoft CDO for Windows 2000
> | > | > | > | Content-Class: urn:content-classes:message
> | > | > | > | Importance: normal
> | > | > | > | Priority: normal
> | > | > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
> | > | > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
> | > | > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
> | > | > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
> | > | > | > | Xref: cpmsftngxa10.phx.gbl
> | > | > microsoft.public.dotnet.framework.aspnet:274243
> | > | > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
> | > | > | > |
> | > | > | > | Hi,
> | > | > | > |
> | > | > | > | I originally posted this as a reply to a rather old thread in
> | > | > | > | dotnet.framework.general and didn't get any response. I
> thought
> | > it
> | > | > might
> | > | > | > be
> | > | > | > | more relevant here; anyone got any ideas? My questions are
> | > below...
> | > | > | > |
> | > | > | > | "David Good" wrote:
> | > | > | > |
> | > | > | > | > We have a network running both Win2k and Win2k3 webservers
> and
> | > our
> | > | > web
> | > | > | > sites
> | > | > | > | > reside on a UNC network share that happens to be a Network
> | > | > Appliance
> | > | > | > NAS.
> | > | > | > | >
> | > | > | > | > Since moving the web root to the network share on the NAS,
> we
> | > have
> | > | > been
> | > | > | > | > receiving various forms of the following error:
> | > | > | > | >
> | > | > | > | > Failed to start monitoring changes to [path]
> | > | > | > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor
> dirMon,
> | > | > String
> | > | > | > dir,
> | > | > | > | > Boolean watchSubtree, UInt32 notifyFilter)
> | > | > | > | > at System.Web.DirectoryMonitor.StartMonitoring()
> | > | > | > | > at System.Web.DirectoryMonitor.StartMonitoringFile(St ring
> file,
> | > | > | > | > FileChangeEventHandler callback, String alias)
> | > | > | > | > at System.Web.FileChangesMonitor.StartMonitoringFile( String
> | > alias,
> | > | > | > | > FileChangeEventHandler callback)
> | > | > | > | > ...
> | > | > | > | >
> | > | > | > | > We have exhausted every resource we can find but every
> | > reference,
> | > | > | > including
> | > | > | > | > the MSDN knowledgebase includes "Access Denied" along with
> the
> | > | > error
> | > | > | > and some
> | > | > | > | > security-related solution and indicates that these problems
> are
> | > | > | > resolved with
> | > | > | > | > the Framework v 1.1.
> | > | > | > |
> | > | > | > | We have a similar setup (including the Network Appliance) and
> | > have
> | > | > | > getting
> | > | > | > | exactly the same error. We have tried changing the file
> | > permissions
> | > | > (the
> | > | > | > | domain account under which ASP.NET runs has full control over
> the
> | > | > | > | directories) and have also applied the registry settings
> | > mentioned
> | > | > | > elsewhere
> | > | > | > | in this thread; both without luck.
> | > | > | > |
> | > | > | > | The root of the application in which we get the error is
> actually
> | > on
> | > | > a
> | > | > | > local
> | > | > | > | drive, but we have mapped a share on the NAS as a virtual
> | > directory
> | > | > | > | (connecting using the same domain user under which ASP.NET
> runs).
> | >
> | > | > The
> | > | > | > | virtual directory has many sub directories that are created
> | > | > dynamically
> | > | > | > by a
> | > | > | > | backend application. The error only ever seems to occur the
> | > first
> | > | > time
> | > | > | > | someone makes a request for a file, but not necessarily the
> first
> | > | > request
> | > | > | > for
> | > | > | > | a file in that directory.
> | > | > | > |
> | > | > | > | As the files in the virtual directory are typically files for
> | > people
> | > | > to
> | > | > | > | download, we have remapped all file types to aspnet_isapi.dll
> and
> | > use
> | > | > a
> | > | > | > | HttpModule to add headers to the response so that people can
> do
> | > left
> | > | > | > click
> | > | > | > | downloads (that is, a left click brings up a save as dialog
> | > instead
> | > | > of
> | > | > | > the
> | > | > | > | browser trying to open the file). To ensure all files are
> | > treated as
> | > | > | > static
> | > | > | > | files we added the following to ~/web.config:
> | > | > | > |
> | > | > | > | <location path="Files">
> | > | > | > | <system.web>
> | > | > | > | <httpHandlers>
> | > | > | > | <add verb="*" path="*"
> | > | > type="System.Web.StaticFileHandler"/>
> | > | > | > | </httpHandlers>
> | > | > | > | </system.web>
> | > | > | > | </location>
> | > | > | > |
> | > | > | > | What I want to know is, why does ASP.NET need to monitor the
> | > | > directory
> | > | > | > | anyway? I suspected that it may monitor the sub directories
> for
> | > new
> | > | > or
> | > | > | > | modified web.config files and thought that adding
> | > | > allowOverride="false"
> | > | > | > to
> | > | > | > | the <location> section above might help. Alas, it did not.
> | > | > | > |
> | > | > | > | Does anyone know of some way I can get ASP.NET to give up
> trying
> | > to
> | > | > | > monitor
> | > | > | > | the directories? As far as I can tell it's doing nothing but
> | > | > throwing
> | > | > | > errors
> | > | > | > | at completely random times.
> | > | > | > |
> | > | > | > | Is there a Microsoft person out there who might be able to
> shed
> | > some
> | > | > | > light
> | > | > | > | on this?
> | > | > | > |
> | > | > | > | Cheers,
> | > | > | > |
> | > | > | > | Tim
> | > | > | > |
> | > | > | > |
> | > | > | >
> | > | > | >
> | > | > |
> | > | >
> | > | >
> | > |
> | >
> | >
> |
>
>

 
Reply With Quote
 
Jim Cheshire [MSFT]
Guest
Posts: n/a
 
      11-12-2004
Hi Tim,

Bingo! You've just found the problem. Now, here's the solution:

http://support.microsoft.com/default...B;EN-US;221790

Jim Cheshire [MSFT]
MCP+I, MCSE, MCSD, MCDBA
ASP.NET Developer Support
(E-Mail Removed)

This post is provided "AS-IS" with no warranties and confers no rights.


--------------------
| Thread-Topic: Error: Failed to start monitoring changes - Framework 1.1
| thread-index: AcTIRUCGjtVrzha2QMaZA8Y04gp7aA==
| X-WBNR-Posting-Host: 202.3.78.9
| From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| References: <(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
<(E-Mail Removed)>
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<g$$(E-Mail Removed)>
| Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| Date: Thu, 11 Nov 2004 15:22:03 -0800
| Lines: 531
| Message-ID: <(E-Mail Removed)>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Newsgroups: microsoft.public.dotnet.framework.aspnet
| NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| Xref: cpmsftngxa10.phx.gbl microsoft.public.dotnet.framework.aspnet:275490
| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
|
| Hi Jim,
|
| I tried Filemon and managed to catch a few errors, but the problem is
that
| it's very hard to tell the difference between the requests that have
raised
| the error and those that have not.
|
| For each file, the process seems to be that inetinfo reads the file, then
| aspnet_wp tried to find web.configs in the directory if it is new, then
tries
| to read the requested file (with far fewer events logged than for a
| successful file). I am connecting to the virtual directory using the
same
| domain account that aspnet runs under.
|
| Almost all of the requests for the directories are successful. There are
| two problems (pasted below) the first happens several times, the second
| (which I assume is the problem) just once:
|
| 9:15:21
| AM aspnet_wp.exe:1584 IRP_MJ_QUERY_INFORMATION
\\server\files\downloads\BWM\20041105 INVALID PARAMETER
FileNetworkOpenInformation
|
| 9:15:21
| AM aspnet_wp.exe:1584 IRP_MJ_DIRECTORY_CONTROL
\\server\files\downloads\BWM\20041105 TOO MANY COMMANDS Change Notify
|
| Could this be due to an incompatibility in the NetApp?
|
| I think I'll just have to try doing a Response.Redirect back to the file
| when I catch these exceptions.
|
| Thanks for your help,
|
| Tim
|
| "Jim Cheshire [MSFT]" wrote:
|
| > Hi Tim,
| >
| > Sorry for missing that in your post. I actually read it originally,
but I
| > forgot it by the time I posted my last response.
| >
| > I think the only issue you are having is the error when trying to
monitor
| > directory changes. If that's the case, I think you should simply run
| > Filemon and find out exactly who is being denied access to what and see
if
| > it is an ACLs issue.
| >
| > Jim Cheshire [MSFT]
| > MCP+I, MCSE, MCSD, MCDBA
| > ASP.NET Developer Support
| > (E-Mail Removed)
| >
| > This post is provided "AS-IS" with no warranties and confers no rights.
| >
| > --------------------
| > | Thread-Topic: Error: Failed to start monitoring changes - Framework
1.1
| > | thread-index: AcTHhgO6u2rbkRInTluGNwyV3lUxTw==
| > | X-WBNR-Posting-Host: 202.3.78.9
| > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | References: <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > <(E-Mail Removed)>
| > | Subject: RE: Error: Failed to start monitoring changes - Framework 1.1
| > | Date: Wed, 10 Nov 2004 16:33:07 -0800
| > | Lines: 392
| > | Message-ID: <(E-Mail Removed)>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
| > | X-Newsreader: Microsoft CDO for Windows 2000
| > | Content-Class: urn:content-classes:message
| > | Importance: normal
| > | Priority: normal
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | Xref: cpmsftngxa10.phx.gbl
microsoft.public.dotnet.framework.aspnet:275195
| > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > |
| > |
| > | Howdy,
| > |
| > | Well perhaps that is the problem, then. As I said in my original
post,
| > we
| > | are mapping all file types for that application to aspnet_isapi.dll.
The
| > | reason we do this is to add headers to the response (content
disposition)
| > | with a HttpModule to allow people to download the files with a left
click
| > and
| > | also provide a more friendly file name when they save. Is there a
| > better
| > | way of doing this other than writing my own ISAPI filter?
| > |
| > | Cheers,
| > |
| > | Tim
| > |
| > |
| > | "Jim Cheshire [MSFT]" wrote:
| > |
| > | > Hi Tim,
| > | >
| > | > No, ASP.NET doesn't care about image files, etc. unless you have
mapped
| > | > those file types to aspnet_isapi.dll. I suspect you haven't.
| > | >
| > | > I would just forget all of this and download Filemon from
SysInternals
| > and
| > | > figure out where you're being denied access.
| > | >
| > | > Jim Cheshire [MSFT]
| > | > MCP+I, MCSE, MCSD, MCDBA
| > | > ASP.NET Developer Support
| > | > (E-Mail Removed)
| > | >
| > | > This post is provided "AS-IS" with no warranties and confers no
rights.
| > | >
| > | >
| > | > --------------------
| > | > | Thread-Topic: Error: Failed to start monitoring changes -
Framework
| > 1.1
| > | > | thread-index: AcTHcnLvRQ+Gwk0AS5KQteLCyO9yjw==
| > | > | X-WBNR-Posting-Host: 202.3.78.9
| > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | > | References: <(E-Mail Removed)>
| > | > <(E-Mail Removed)>
| > | > <(E-Mail Removed)>
| > | > <(E-Mail Removed)>
| > | > | Subject: RE: Error: Failed to start monitoring changes -
Framework 1.1
| > | > | Date: Wed, 10 Nov 2004 14:13:04 -0800
| > | > | Lines: 282
| > | > | Message-ID: <(E-Mail Removed)>
| > | > | MIME-Version: 1.0
| > | > | Content-Type: text/plain;
| > | > | charset="Utf-8"
| > | > | Content-Transfer-Encoding: 7bit
| > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | Content-Class: urn:content-classes:message
| > | > | Importance: normal
| > | > | Priority: normal
| > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | Xref: cpmsftngxa10.phx.gbl
| > microsoft.public.dotnet.framework.aspnet:275148
| > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > | > |
| > | > |
| > | > | Hi,
| > | > |
| > | > | I let perfmon run for two hours or so without seeing any
application
| > | > | restarts, but decided to give delayNotificationTimeout a try
anyway
| > (none
| > | > of
| > | > | the counters seem to work). I thought it had fixed it, but alas,
| > later
| > | > on
| > | > | the errors starting getting logged again. Is it enough to put it
in
| > the
| > | > | web.config, or do I need to put it into machine.config?
| > | > |
| > | > | The files in the directories that are being monitored are all
JPEGs,
| > | > MPEGs,
| > | > | MP3s, WAVs etc - surely ASP.NET doesn't care about such files (?).
| > | > |
| > | > | One other strange thing I noticed is that sometimes the errors
occur
| > in
| > | > | pairs - one on each of the web servers for different files in the
| > same
| > | > | directory (we have a page that displays 8 storyboard images that
| > reside
| > | > in
| > | > | the virtual directory). The images for an asset are
synchronously
| > copied
| > | > | across to the virtual directory (if they're not already there)
when
| > the
| > | > page
| > | > | is requested... that's why it seems to me that perhaps there is a
| > slight
| > | > lag
| > | > | before the NAS sets permissions properly.
| > | > |
| > | > | Tim
| > | > |
| > | > | "Jim Cheshire [MSFT]" wrote:
| > | > |
| > | > | > Hi Tim,
| > | > | >
| > | > | > We don't recycle the application domain when a change is made
to an
| > | > ASPX
| > | > | > page. As a matter of fact, even if the page contains inline
| > ASP.NET
| > | > code,
| > | > | > we will not recycle the app domain when it's recompiled. We
will
| > | > recompile
| > | > | > the new page and new users will get the new page. Old users
will
| > still
| > | > use
| > | > | > the old page. Only after 15 recompilations (by default) will
we
| > | > recycle
| > | > | > the app domain on a recompile of inline code. You can modify
this
| > | > number
| > | > | > via the numRecompilesBeforeAppRestart attribute of the
| > <compilation>
| > | > | > element in the machine.config file.
| > | > | >
| > | > | > You can determine if your app is restarting by checking the
| > Application
| > | > | > Restarts counter on the ASP.NET v1.1.4322 object in Perfmon.
This
| > is a
| > | > | > cumulative counter since the process started.
| > | > | >
| > | > | > If you think you're getting an access denied due to
recompilation
| > as a
| > | > | > timing issue, you can add a delayNotificationTimeout attribute
to
| > your
| > | > | > httpRuntime element in the machine.config file and set it to
60.
| > For
| > | > | > example:
| > | > | >
| > | > | > <httpRuntime delayNotificationTimeout="60" />
| > | > | >
| > | > | > That will often correct such problems.
| > | > | >
| > | > | > Jim Cheshire [MSFT]
| > | > | > MCP+I, MCSE, MCSD, MCDBA
| > | > | > ASP.NET Developer Support
| > | > | > (E-Mail Removed)
| > | > | >
| > | > | > This post is provided "AS-IS" with no warranties and confers no
| > rights.
| > | > | >
| > | > | >
| > | > | > --------------------
| > | > | > | Thread-Topic: Error: Failed to start monitoring changes -
| > Framework
| > | > 1.1
| > | > | > | thread-index: AcTGpn1orkfdwadNRt6iN+VzouvZXA==
| > | > | > | X-WBNR-Posting-Host: 202.3.78.9
| > | > | > | From: "=?Utf-8?B?VGltIEQ=?=" <(E-Mail Removed)>
| > | > | > | References:
<(E-Mail Removed)>
| > | > | > <(E-Mail Removed)>
| > | > | > | Subject: RE: Error: Failed to start monitoring changes -
| > Framework 1.1
| > | > | > | Date: Tue, 9 Nov 2004 13:53:04 -0800
| > | > | > | Lines: 162
| > | > | > | Message-ID:
<(E-Mail Removed)>
| > | > | > | MIME-Version: 1.0
| > | > | > | Content-Type: text/plain;
| > | > | > | charset="Utf-8"
| > | > | > | Content-Transfer-Encoding: 7bit
| > | > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | > | Content-Class: urn:content-classes:message
| > | > | > | Importance: normal
| > | > | > | Priority: normal
| > | > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | > | Xref: cpmsftngxa10.phx.gbl
| > | > microsoft.public.dotnet.framework.aspnet:274860
| > | > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > | > | > |
| > | > | > |
| > | > | > | Hey Jim,
| > | > | > |
| > | > | > | Thanks for your reply. I was under the impression that
ASP.NET
| > only
| > | > | > | monitored directories for changes to .config and .dll files.
As
| > DLLs
| > | > | > only go
| > | > | > | in /bin and I have turned config override off for my virtual
| > | > directory,
| > | > | > it
| > | > | > | seemed to make sense that ASP.NET would stop monitoring sub
| > | > directories
| > | > | > for
| > | > | > | changes. Does it monitor other file types? I thought a
request
| > | > needed
| > | > | > to be
| > | > | > | made for a .aspx page in order for a restart to occur, which
| > would
| > | > | > suggest
| > | > | > | that changes to .aspx files are not monitored.
| > | > | > |
| > | > | > | Anyway, the problem isn't a permissions problem - the domain
| > account
| > | > has
| > | > | > | permission to the files and the second request for any files
that
| > | > cause
| > | > | > an
| > | > | > | error works perfectly. The error seems to be completely
| > random...
| > | > | > perhaps
| > | > | > | there's a slight lag in applying the permissions to new files
or
| > | > | > something.
| > | > | > |
| > | > | > | Thanks for your help,
| > | > | > |
| > | > | > | Tim
| > | > | > |
| > | > | > | "Jim Cheshire [MSFT]" wrote:
| > | > | > |
| > | > | > | > Hi Tim,
| > | > | > | >
| > | > | > | > When an application domain starts up, ASP.NET begins
monitoring
| > the
| > | > | > files
| > | > | > | > and folders where the content resides for file change
| > | > notifications.
| > | > | > That
| > | > | > | > way if a file changes in your application, the application
| > domain
| > | > can
| > | > | > be
| > | > | > | > restarted so that the new change takes affect. This is
part of
| > the
| > | > | > | > architecture of ASP.NET and you can't change it.
| > | > | > | >
| > | > | > | > The process account has to have permission to the content
in
| > order
| > | > to
| > | > | > | > monitor it for changes. If you get errors such as this
one,
| > you
| > | > can
| > | > | > use a
| > | > | > | > tool such as Filemon (from http://www.sysinternals.com) or
you
| > can
| > | > | > audit
| > | > | > | > the location.
| > | > | > | >
| > | > | > | > Jim Cheshire [MSFT]
| > | > | > | > MCP+I, MCSE, MCSD, MCDBA
| > | > | > | > ASP.NET Developer Support
| > | > | > | > (E-Mail Removed)
| > | > | > | >
| > | > | > | > This post is provided "AS-IS" with no warranties and
confers no
| > | > rights.
| > | > | > | >
| > | > | > | > --------------------
| > | > | > | > | Thread-Topic: Error: Failed to start monitoring changes -
| > | > Framework
| > | > | > 1.1
| > | > | > | > | thread-index: AcTFNmHaxouOL227SLeYZGGWa0RjYw==
| > | > | > | > | X-WBNR-Posting-Host: 202.3.78.9
| > | > | > | > | From: "=?Utf-8?B?VGltIEQ=?="
<(E-Mail Removed)>
| > | > | > | > | Subject: Error: Failed to start monitoring changes -
| > Framework 1.1
| > | > | > | > | Date: Sun, 7 Nov 2004 17:58:03 -0800
| > | > | > | > | Lines: 74
| > | > | > | > | Message-ID:
| > <(E-Mail Removed)>
| > | > | > | > | MIME-Version: 1.0
| > | > | > | > | Content-Type: text/plain;
| > | > | > | > | charset="Utf-8"
| > | > | > | > | Content-Transfer-Encoding: 7bit
| > | > | > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | > | > | Content-Class: urn:content-classes:message
| > | > | > | > | Importance: normal
| > | > | > | > | Priority: normal
| > | > | > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | > | > | Newsgroups: microsoft.public.dotnet.framework.aspnet
| > | > | > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.1.29
| > | > | > | > | Path: cpmsftngxa10.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | > | > | Xref: cpmsftngxa10.phx.gbl
| > | > | > microsoft.public.dotnet.framework.aspnet:274243
| > | > | > | > | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
| > | > | > | > |
| > | > | > | > | Hi,
| > | > | > | > |
| > | > | > | > | I originally posted this as a reply to a rather old
thread in
| > | > | > | > | dotnet.framework.general and didn't get any response. I
| > thought
| > | > it
| > | > | > might
| > | > | > | > be
| > | > | > | > | more relevant here; anyone got any ideas? My questions
are
| > | > below...
| > | > | > | > |
| > | > | > | > | "David Good" wrote:
| > | > | > | > |
| > | > | > | > | > We have a network running both Win2k and Win2k3
webservers
| > and
| > | > our
| > | > | > web
| > | > | > | > sites
| > | > | > | > | > reside on a UNC network share that happens to be a
Network
| > | > | > Appliance
| > | > | > | > NAS.
| > | > | > | > | >
| > | > | > | > | > Since moving the web root to the network share on the
NAS,
| > we
| > | > have
| > | > | > been
| > | > | > | > | > receiving various forms of the following error:
| > | > | > | > | >
| > | > | > | > | > Failed to start monitoring changes to [path]
| > | > | > | > | > at System.Web.DirMonCompletion..ctor(DirectoryMonitor
| > dirMon,
| > | > | > String
| > | > | > | > dir,
| > | > | > | > | > Boolean watchSubtree, UInt32 notifyFilter)
| > | > | > | > | > at System.Web.DirectoryMonitor.StartMonitoring()
| > | > | > | > | > at
System.Web.DirectoryMonitor.StartMonitoringFile(St ring
| > file,
| > | > | > | > | > FileChangeEventHandler callback, String alias)
| > | > | > | > | > at
System.Web.FileChangesMonitor.StartMonitoringFile( String
| > | > alias,
| > | > | > | > | > FileChangeEventHandler callback)
| > | > | > | > | > ...
| > | > | > | > | >
| > | > | > | > | > We have exhausted every resource we can find but every
| > | > reference,
| > | > | > | > including
| > | > | > | > | > the MSDN knowledgebase includes "Access Denied" along
with
| > the
| > | > | > error
| > | > | > | > and some
| > | > | > | > | > security-related solution and indicates that these
problems
| > are
| > | > | > | > resolved with
| > | > | > | > | > the Framework v 1.1.
| > | > | > | > |
| > | > | > | > | We have a similar setup (including the Network Appliance)
and
| > | > have
| > | > | > | > getting
| > | > | > | > | exactly the same error. We have tried changing the file
| > | > permissions
| > | > | > (the
| > | > | > | > | domain account under which ASP.NET runs has full control
over
| > the
| > | > | > | > | directories) and have also applied the registry settings
| > | > mentioned
| > | > | > | > elsewhere
| > | > | > | > | in this thread; both without luck.
| > | > | > | > |
| > | > | > | > | The root of the application in which we get the error is
| > actually
| > | > on
| > | > | > a
| > | > | > | > local
| > | > | > | > | drive, but we have mapped a share on the NAS as a virtual
| > | > directory
| > | > | > | > | (connecting using the same domain user under which
ASP.NET
| > runs).
| > | >
| > | > | > The
| > | > | > | > | virtual directory has many sub directories that are
created
| > | > | > dynamically
| > | > | > | > by a
| > | > | > | > | backend application. The error only ever seems to occur
the
| > | > first
| > | > | > time
| > | > | > | > | someone makes a request for a file, but not necessarily
the
| > first
| > | > | > request
| > | > | > | > for
| > | > | > | > | a file in that directory.
| > | > | > | > |
| > | > | > | > | As the files in the virtual directory are typically files
for
| > | > people
| > | > | > to
| > | > | > | > | download, we have remapped all file types to
aspnet_isapi.dll
| > and
| > | > use
| > | > | > a
| > | > | > | > | HttpModule to add headers to the response so that people
can
| > do
| > | > left
| > | > | > | > click
| > | > | > | > | downloads (that is, a left click brings up a save as
dialog
| > | > instead
| > | > | > of
| > | > | > | > the
| > | > | > | > | browser trying to open the file). To ensure all files
are
| > | > treated as
| > | > | > | > static
| > | > | > | > | files we added the following to ~/web.config:
| > | > | > | > |
| > | > | > | > | <location path="Files">
| > | > | > | > | <system.web>
| > | > | > | > | <httpHandlers>
| > | > | > | > | <add verb="*" path="*"
| > | > | > type="System.Web.StaticFileHandler"/>
| > | > | > | > | </httpHandlers>
| > | > | > | > | </system.web>
| > | > | > | > | </location>
| > | > | > | > |
| > | > | > | > | What I want to know is, why does ASP.NET need to monitor
the
| > | > | > directory
| > | > | > | > | anyway? I suspected that it may monitor the sub
directories
| > for
| > | > new
| > | > | > or
| > | > | > | > | modified web.config files and thought that adding
| > | > | > allowOverride="false"
| > | > | > | > to
| > | > | > | > | the <location> section above might help. Alas, it did
not.
| > | > | > | > |
| > | > | > | > | Does anyone know of some way I can get ASP.NET to give up
| > trying
| > | > to
| > | > | > | > monitor
| > | > | > | > | the directories? As far as I can tell it's doing nothing
but
| > | > | > throwing
| > | > | > | > errors
| > | > | > | > | at completely random times.
| > | > | > | > |
| > | > | > | > | Is there a Microsoft person out there who might be able
to
| > shed
| > | > some
| > | > | > | > light
| > | > | > | > | on this?
| > | > | > | > |
| > | > | > | > | Cheers,
| > | > | > | > |
| > | > | > | > | Tim
| > | > | > | > |
| > | > | > | > |
| > | > | > | >
| > | > | > | >
| > | > | > |
| > | > | >
| > | > | >
| > | > |
| > | >
| > | >
| > |
| >
| >
|

 
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