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https://issues.apache.org/jira/browse/LOG4NET-510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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StevenXi updated LOG4NET-510:
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Description:
There's a chance InterProcessLock.AcquireLock hangs, and lots of
Appender.AppenderSkeleton.DoAppend threads queued.
It happens to our service every 2 days, all happen after mid-night. So after a
new log file created, few new line in the file added. But not always happens.
As there're hundreds of Appender.AppenderSkeleton.DoAppend threads queued, it
blocks everywhere in the service that uses log4net.
log4net is supposed to be 'failure-free' or at least fails quietly, not block
the whole application.
config uses
<lockingModel type="log4net.Appender.FileAppender+InterProcessLock" />
So far it has hanged for few (8+) hours already.
The attached screen shot was taken by remote debug from a server after 8+ hours
of hanging.
was:
There's a chance InterProcessLock.AcquireLock hangs, and lots of
Appender.AppenderSkeleton.DoAppend threads queued.
It happens to our service every 2 days, all happen after mid-night. So after a
new log file created, few new line in the file added. But not always happens.
As there're hundreds of Appender.AppenderSkeleton.DoAppend threads queued, it
blocks everywhere in the service that uses log4net.
log4net is supposed to be 'failure-free' or at least fails quietly, not block
the whole application.
config uses
<lockingModel type="log4net.Appender.FileAppender+InterProcessLock" />
So far it has hanged for few (8+) hours already.
> FileAppender.InterProcessLock.AcquireLock blocks everything
> -----------------------------------------------------------
>
> Key: LOG4NET-510
> URL: https://issues.apache.org/jira/browse/LOG4NET-510
> Project: Log4net
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 1.2.13
> Environment: Windows 2012
> Reporter: StevenXi
> Priority: Critical
> Attachments: screenshot-1.png
>
>
> There's a chance InterProcessLock.AcquireLock hangs, and lots of
> Appender.AppenderSkeleton.DoAppend threads queued.
> It happens to our service every 2 days, all happen after mid-night. So after
> a new log file created, few new line in the file added. But not always
> happens.
> As there're hundreds of Appender.AppenderSkeleton.DoAppend threads queued, it
> blocks everywhere in the service that uses log4net.
> log4net is supposed to be 'failure-free' or at least fails quietly, not block
> the whole application.
> config uses
> <lockingModel type="log4net.Appender.FileAppender+InterProcessLock" />
> So far it has hanged for few (8+) hours already.
> The attached screen shot was taken by remote debug from a server after 8+
> hours of hanging.
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