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https://issues.apache.org/jira/browse/SSHD-706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15620500#comment-15620500
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David Ostrovsky commented on SSHD-706:
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Thanks for merging. Unfortunately as you noticed, it hasn't fixed it. I
investigated the thread dumps and saw, that a lot of them was showing this
location: in log message construction, triggered from
{{AbstractSession#checkForTimeouts}} method. That why I uploaded this PR.
With this patch applied and investigating thread dumps, I noticed, that a lot
of them was showing this location: {{PropertyResolverUtils.getLongProperty}}
methods, invoked form {{AbstractSession#checkForTimeouts}}, to retrieve the
configured for {{FactoryManager.AUTH_TIMEOUT}} and
{{FactoryManager.IDLE_TIMEOUT}}. So i went ahead and change the code to cache
timeout value configuration, as t was done for other configuration values in
{{AbstractSession}}: [1].
Unfortunately it hasn't solved the problem as well, I show still some location
in thread dumps in {{AbstractSession#checkForTimeouts}}. so just to make sure,
i changed the scheduling in our client code: [2] that the problem wasn't caused
by this. Unfortunately, it also hasn't fixed it. Now i don't see in stack dumps
apache.sshd packages any more, so that i really clueless how to troubleshoot
the problem any further.
I tried to revert 549ac4e2a197afebbd9d66ccc1cd8506c0a515fb on master, but this
produced non-trivial to resolve conflicts ;-( Any idea how to proceed from
here?
[1] http://paste.openstack.org/show/587413
[2] http://paste.openstack.org/show/587414
> Error: GC overhead limit exceeded after upgrade to 1.3.0
> --------------------------------------------------------
>
> Key: SSHD-706
> URL: https://issues.apache.org/jira/browse/SSHD-706
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 1.3.0
> Environment: Gerrit Code Review
> Linux, 8 core, 32 GB RAM.
> Reporter: David Ostrovsky
> Attachments: stack_dumps_sshd_706.zip
>
>
> Since upgrade to SSHD 1.3.0 and Mina 2.0.15 junit tests are failing with:
> {code}
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> {code}
> All is fine on SSHD 1.2.0 and Mina 2.0.10.
> CL is here: 1 and CI log is here: 2.
> * 1. https://gerrit-review.googlesource.com/87435
> * 2.
> https://gerrit-ci.gerritforge.com/job/Gerrit-verifier-default/14968/consoleText
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