[jira] [Updated] (LOG4NET-510) FileAppender.InterProcessLock.AcquireLock blocks everything

["Ralph Goers (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4NET-510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralph Goers updated LOG4NET-510:
--------------------------------

LOG4NET is now dormant.  

> 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.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)