Jenkins ircbot leaking OutputThreads

[Luciano Furtado]

Hi Everybody,

We have a Jenkins instance that connects to a irc server over ipsec, the Jenkins server after running for over a week, ends up with about 300 OutputThreads for the irc-plugin .

we are running on Jenkins Jenkins ver. 1.565.3 with irc plugin 2.25 / CentOS 6.5 / OpenJdk 1.6

The connection to the irc server is bit flaky , so it seems to get disconnected from time to time, our theory is that the OutputThreads are not getting interrupted after the connection is lost and re-established. 

So everytime we reconnect another Outputthread is leaked.

When we take jstack dump  on the jenkins process this is what we see below (I truncated the output to reduce the size of the email), please let me know if any further info is need to throubleshoot this issue:

Thanks in advance,

Luciano

--

"bot283-output" daemon prio=10 tid=0x00007fd518159800 nid=0x7b3 waiting on condition [0x00007fd3d62e1000]

   java.lang.Thread.State: WAITING (parking)

        at sun.misc.Unsafe.park(Native Method)

        - parking to wait for  <0x00000005912d31b0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)

        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)

        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)

        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:386)

        at org.pircbotx.OutputThread.run(OutputThread.java:101)

--

"bot282-output" daemon prio=10 tid=0x00007fd518158800 nid=0x7ff0 waiting on condition [0x00007fd3ca6a5000]

   java.lang.Thread.State: WAITING (parking)

        at sun.misc.Unsafe.park(Native Method)

        - parking to wait for  <0x0000000590b18d98> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)

        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)

        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)

        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:386)

        at org.pircbotx.OutputThread.run(OutputThread.java:101)

--

"bot281-output" daemon prio=10 tid=0x00007fd518157800 nid=0x75c9 waiting on condition [0x00007fd3cebea000]

   java.lang.Thread.State: WAITING (parking)

        at sun.misc.Unsafe.park(Native Method)

        - parking to wait for  <0x0000000590219238> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)

        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)

        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)

        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:386)

        at org.pircbotx.OutputThread.run(OutputThread.java:101)

--

"bot280-output" daemon prio=10 tid=0x00007fd518156800 nid=0x6f40 waiting on condition [0x00007fd3c9f9e000]

   java.lang.Thread.State: WAITING (parking)

        at sun.misc.Unsafe.park(Native Method)

        - parking to wait for  <0x0000000587ad2da0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)

        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)

        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)

        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:386)

        at org.pircbotx.OutputThread.run(OutputThread.java:101)

[Christoph Kutzinski]

Thanks for the info.
Can you open a new JIRA issue against the ircbot and attach the information below?

thanks
Kutzi

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[Luciano Rodrigues Furtado]

Hey Cristoph,

I have opened the ticket as requested JENKINS-25349 - Leaking ircbot OutputThreads.

Please let me know if I can help in any way.

Cheers.

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[Luciano Furtado]

Hi Cristoph,

I see that a fix was commited , thank you so much.

Do you have any plans for a new release of the irc plugin ?

Best Regards.

[Christoph Kutzinski]

Would be great if you could test the build, I linked to the issue,
before I cut a new release.

Am 01.11.2014 um 12:24 schrieb Luciano Furtado:
> Hi Cristoph,
>
> I see that a fix was commited , thank you so much.
>
> Do you have any plans for a new release of the irc plugin ?
>
> Best Regards.
>
> On Tuesday, October 28, 2014 10:50:39 PM UTC, Luciano Rodrigues Furtado
> wrote:
>
> Hey Cristoph,
>
>
> I have opened the ticket as requested JENKINS-25349 - Leaking ircbot

> OutputThreads <https://issues.jenkins-ci.org/browse/JENKINS-25349>.

>
>
> Please let me know if I can help in any way.
>
>
> Cheers.
>
> On Oct 28, 2014 9:17 PM, "Christoph Kutzinski" <ku...@gmx.de

> <javascript:>> wrote:
>
> Thanks for the info.
> Can you open a new JIRA issue against the ircbot and attach the
> information below?
>
> thanks
> Kutzi
>
> Am 28.10.2014 um 22:02 schrieb Luciano Furtado:
>> Hi Everybody,
>>
>>
>> We have a Jenkins instance that connects to a irc server over
>> ipsec, the Jenkins server after running for over a week, ends
>> up with about 300 OutputThreads for the irc-plugin .
>>
>> we are running on Jenkins Jenkins ver. 1.565.3

>> <http://jenkins-ci.org/> with irc plugin 2.25
>> <https://jnk04n.dev.tripadvisor.com/pluginManager/plugin/ircbot/thirdPartyLicenses> /

>> <javascript:>.

>> For more options, visit https://groups.google.com/d/optout

>> <https://groups.google.com/d/optout>.

>
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> to jenkinsci-use...@googlegroups.com <javascript:>.

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