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From Frédéric Delaporte (JIRA) <j...@apache.org>
Subject [jira] [Updated] (LOG4NET-506) RollingFileAppender no more able to log to same folder from different processes
Date Fri, 26 Feb 2016 17:12:20 GMT

     [ https://issues.apache.org/jira/browse/LOG4NET-506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Frédéric Delaporte updated LOG4NET-506:
---------------------------------------
    Description: 
We have many applications running on the same server.
Some are windows services running under "Local system" identity, others are IIS hosted web
sites running under "Application pool" identity.
All do log through RollingFileAppender to D:\Logs\ to their own file log (filename specific
to each application).
They log through AdoNetAppender too.

Since we have upgraded Log4Net from 1.2.13 to 1.2.15 on all services and some web sites, upgraded
IIS web sites cease being able to log to D:\Logs\. SQL logs still work. Non upgraded web site
are still able to log to D:\Logs\.

Our services start before our web sites.
Stopping all services then restarting a web site allows it to log again in D:\Logs\. Restarting
a second web site (having a different application pool) while the first is still running does
not allow the second one to log again in D:\Logs\ (Application pool identity give different
identity to each pool).

Activating log4net debug trace on a web site, and comparing failure cases to working cases,
we get following diff:

_failing case_
{quote}
log4net:ERROR Could not create Appender [RollingLogFileAppender] of type [log4net.Appender.RollingFileAppender].
Reported error follows.
System.UnauthorizedAccessException: L'accès au chemin d'accès 'D__Logs_' est refusé.
   à System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   à System.Threading.Mutex.MutexTryCodeHelper.MutexTryCode(Object userData)
   à System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode
code, CleanupCode backoutCode, Object userData)
   à  System.Threading.Mutex.CreateMutexWithGuaranteedCleanup(Boolean initiallyOwned, String
name, Boolean& createdNew, SECURITY_ATTRIBUTES secAttrs)
   à  System.Threading.Mutex..ctor(Boolean initiallyOwned, String name, Boolean& createdNew,
MutexSecurity mutexSecurity)
   à  System.Threading.Mutex..ctor(Boolean initiallyOwned, String name, Boolean& createdNew)
   à  log4net.Appender.RollingFileAppender.ActivateOptions()
   à  log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement appenderElement)
log4net:ERROR Appender named [RollingLogFileAppender] not found.
{quote}

_working case corresponding logs_
{quote}
log4net: Searched for existing files in [D:\Logs]
log4net: curSizeRollBackups starts at [0]
log4net: Opening file for writing [D:\Logs\2016.02.26-WebSite1.log] append [True]
log4net: Created Appender [RollingLogFileAppender]
log4net: Adding appender named [RollingLogFileAppender] to logger [root].
{quote}
(All other log lines are identical)


  was:
We have many applications running on the same server.
Some are windows services running under "Local system" identity, others are IIS hosted web
sites running under "Application pool" identity.
All do log through RollingFileAppender to D:\Logs\ to their own file log (filename specific
to each application).
They log through AdoNetAppender too.

Since we have upgraded Log4Net from 1.2.13 to 1.2.15 on all services and some web sites, upgraded
IIS web sites cease being able to log to D:\Logs\. SQL logs still work. Non upgraded web site
are still able to log to D:\Logs\.

Our services start before our web sites.
Stopping all services then restarting a web site allows it to log again in D:\Logs\. Restarting
a second web site (having a diffrent application pool) while the first is still running does
not allow the second one to log again in D:\Logs\ (Application pool identity give different
identity to each pool).

Activating log4net debug trace on a web site, and comparing failure cases to working cases,
we get following diff:

_failing case_
{quote}
log4net:ERROR Could not create Appender [RollingLogFileAppender] of type [log4net.Appender.RollingFileAppender].
Reported error follows.
System.UnauthorizedAccessException: L'accès au chemin d'accès 'D__Logs_' est refusé.
   à System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   à System.Threading.Mutex.MutexTryCodeHelper.MutexTryCode(Object userData)
   à System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode
code, CleanupCode backoutCode, Object userData)
   à  System.Threading.Mutex.CreateMutexWithGuaranteedCleanup(Boolean initiallyOwned, String
name, Boolean& createdNew, SECURITY_ATTRIBUTES secAttrs)
   à  System.Threading.Mutex..ctor(Boolean initiallyOwned, String name, Boolean& createdNew,
MutexSecurity mutexSecurity)
   à  System.Threading.Mutex..ctor(Boolean initiallyOwned, String name, Boolean& createdNew)
   à  log4net.Appender.RollingFileAppender.ActivateOptions()
   à  log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement appenderElement)
log4net:ERROR Appender named [RollingLogFileAppender] not found.
{quote}

_working case corresponding logs_
{quote}
log4net: Searched for existing files in [D:\Logs]
log4net: curSizeRollBackups starts at [0]
log4net: Opening file for writing [D:\Logs\2016.02.26-Klimt.log] append [True]
log4net: Created Appender [RollingLogFileAppender]
log4net: Adding appender named [RollingLogFileAppender] to logger [root].
{quote}
(All other log lines are identical)



> RollingFileAppender no more able to log to same folder from different processes
> -------------------------------------------------------------------------------
>
>                 Key: LOG4NET-506
>                 URL: https://issues.apache.org/jira/browse/LOG4NET-506
>             Project: Log4net
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 1.2.15
>         Environment: Windows Server 2008 R2, Windows Server 2012 R2
>            Reporter: Frédéric Delaporte
>         Attachments: SiteAlone_log4net.txt, SiteWithSvc_log4net.txt
>
>
> We have many applications running on the same server.
> Some are windows services running under "Local system" identity, others are IIS hosted
web sites running under "Application pool" identity.
> All do log through RollingFileAppender to D:\Logs\ to their own file log (filename specific
to each application).
> They log through AdoNetAppender too.
> Since we have upgraded Log4Net from 1.2.13 to 1.2.15 on all services and some web sites,
upgraded IIS web sites cease being able to log to D:\Logs\. SQL logs still work. Non upgraded
web site are still able to log to D:\Logs\.
> Our services start before our web sites.
> Stopping all services then restarting a web site allows it to log again in D:\Logs\.
Restarting a second web site (having a different application pool) while the first is still
running does not allow the second one to log again in D:\Logs\ (Application pool identity
give different identity to each pool).
> Activating log4net debug trace on a web site, and comparing failure cases to working
cases, we get following diff:
> _failing case_
> {quote}
> log4net:ERROR Could not create Appender [RollingLogFileAppender] of type [log4net.Appender.RollingFileAppender].
Reported error follows.
> System.UnauthorizedAccessException: L'accès au chemin d'accès 'D__Logs_' est refusé.
>    à System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
>    à System.Threading.Mutex.MutexTryCodeHelper.MutexTryCode(Object userData)
>    à System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode
code, CleanupCode backoutCode, Object userData)
>    à  System.Threading.Mutex.CreateMutexWithGuaranteedCleanup(Boolean initiallyOwned,
String name, Boolean& createdNew, SECURITY_ATTRIBUTES secAttrs)
>    à  System.Threading.Mutex..ctor(Boolean initiallyOwned, String name, Boolean&
createdNew, MutexSecurity mutexSecurity)
>    à  System.Threading.Mutex..ctor(Boolean initiallyOwned, String name, Boolean&
createdNew)
>    à  log4net.Appender.RollingFileAppender.ActivateOptions()
>    à  log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
> log4net:ERROR Appender named [RollingLogFileAppender] not found.
> {quote}
> _working case corresponding logs_
> {quote}
> log4net: Searched for existing files in [D:\Logs]
> log4net: curSizeRollBackups starts at [0]
> log4net: Opening file for writing [D:\Logs\2016.02.26-WebSite1.log] append [True]
> log4net: Created Appender [RollingLogFileAppender]
> log4net: Adding appender named [RollingLogFileAppender] to logger [root].
> {quote}
> (All other log lines are identical)



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