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From Frédéric Delaporte (JIRA) <j...@apache.org>
Subject [jira] [Comment Edited] (LOG4NET-506) RollingFileAppender no more able to log to same folder from different processes
Date Sun, 28 Feb 2016 12:20:18 GMT

    [ https://issues.apache.org/jira/browse/LOG4NET-506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15169288#comment-15169288
] 

Frédéric Delaporte edited comment on LOG4NET-506 at 2/28/16 12:19 PM:
----------------------------------------------------------------------

Maybe a quick fix could be, in LOG4NET-485 implementation, to change the mutex name to include
the log +datePattern+ -file _base_ name (name without the _rolling variable part_)-.

As a workaround for keeping using 1.2.15 instead of rollbacking to 1.2.13, we will use specific
sub-folders for each application. (By example; D:\Logs\WebSite1\ for web site 1). This does
work, even if some 1.2.15 services goes on logging into D:\Logs\.


was (Author: fredericdelap):
Maybe a quick fix could be, in LOG4NET-485 implementation, to change the mutex name to include
the log +datePattern+ -file _base_ name (name without the _rolling variable part_)-.

As a workaround for keeping using 1.2.15 instead of rollbacking to 1.2.13, we will use specific
sub-folders for each application. (By example; D:\Logs\Klimt\ for Klimt site). This does work,
even if some 1.2.15 services goes on logging into D:\Logs\.

> 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
>            Priority: Minor
>         Attachments: SiteAlone_log4net.txt, SiteWithSvc_log4net.txt
>
>
> Many applications run 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\ (file config node) to their own file
log (filename specific to each application through datePattern config node).
> 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)
> WebSite appender configuration (in bold what does change with Svc conf)
> {quote}
>   <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
>     <file value="D:\Logs\" />
>     <datePattern value="yyyy.MM.dd'-*SiteWeb1*.log'" />
>     <staticLogFileName value="false" />
>     <appendToFile value="true" />
>     <rollingStyle value="Composite" />
>     <maxSizeRollBackups value="10" />
>     <maximumFileSize value="5MB" />
>     <layout type="log4net.Layout.PatternLayout">
>       <conversionPattern value="%date [%thread] %-5level %logger - %message - %property%newline%exception"
/>
>     </layout>
>   </appender>
> {quote}
> Svc appender configuration
> {quote}
>   <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
>     <file value="D:\Logs\" />
>     <datePattern value="yyyy.MM.dd'-*Svc1*.log'" />
>     <staticLogFileName value="false" />
>     <appendToFile value="true" />
>     <rollingStyle value="Composite" />
>     <maxSizeRollBackups value="10" />
>     <maximumFileSize value="5MB" />
>     <layout type="log4net.Layout.PatternLayout">
>       <conversionPattern value="%date [%thread] %-5level %logger - %message - %property%newline%exception"
/>
>     </layout>
>   </appender>
> {quote}



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