Hi!
Apologies, I've completely lost track of your question.
The preserveLogFileNameExtension := true should not cause any race
condition, because the mutex lock introduced in 1.2.15 completely
surrounds the method RollingFileAppender.AdjustFileBeforeAppend().
Further, given that it is a Mutex, it synchronizes both Threads and
Processes that run on the same operating system. However, I've no idea
whether preserveLogFileNameExtension := True breaks the detection of
existing rolled files and maybe that is the actual source of your issue.
Please note that Stefan Bodewig and I agree that the existing
RollingFileAppender implementation is broken in too many ways to fix it.
Patching it further could finally break the few things it does well and
therefore we avoid to patch it any further. We have plans to rewrite the
RollingFileAppender from scratch [1] and the work I've done so far dates
back to the late 2011 [2]. This is the thing we would like to tackle as
soon as possible. The problem is that we lack the manpower to complete
the job anytime soon. If you or your team would like to pick up the work
and finish it, we would gladly assist you with all that we can do.
Cheers,
Dominik
[1] https://issues.apache.org/jira/browse/LOG4NET-367
[2]
https://bitbucket.org/NachbarsLumpi/log4net-patches/src/1250c817e2620c89789b70fd2fb29f9334dc77b1/RFA-NG?at=default&fileviewer=file-view-default
On 2017-03-08 14:43, Kinnar wrote:
Hi Dominink,
We had asked this query originally with regards to race condition observed
in multi threaded windows service and you had provided solution to it as
follows :
"
Hi again,
based on the information that you have multiple processes running, I think
that two processes decided to roll files at the same time. This probably has
caused a race condition and that again caused the show to stop.
The good news is that this scenario has been adressed in the latest log4net
release (1.2.15) and for you this means that you could try to update log4net
and see if the issue does no longer occur. Let us know what you try and what
the outcome was.
Cheers,
Dominik
"
As per your response above, the solution which you had suggested will going
to work only when there is a race condition among multiple processes and
not among multiple threads of the same process ? Please confirm.
With addition to above confirmation, we are still looking for your reply on
following :
"whether setting "preserveLogFileNameExtension" configuration to True may
lead log4net to race condition. "
Let us know your feedback on this as soon as possible as we want to decide
our further direction depending on this.
Regards,
Kinnar
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