Hi Stephen,

We don't use slaves. We only have one master.

Should I create an issue in JIRA for my specific issue?

(is there a reason why you got the conservation out of the group?)

Thanks,

On Wed, May 18, 2016 at 8:56 AM, Stephen Connolly <
[email protected]> wrote:

> Hard to say for certain as that could still be references maintained by
> the unexported objects that are pending unexport. If you can get your
> instance into that state and then have it sit idle for a couple of hours...
> if it is JENKINS-34573 then you should see the retained memory reduce as
> one reference is cleared every minute. Alternatively disconnect and
> reconnect all your slaves and see if that frees the memory up -
> JENKINS-34573 is only an issue for long running busy slaves
>
> On 17 May 2016 at 19:01, Ugo Bellavance <[email protected]> wrote:
>
>> Ok, I did analyse the heap dump with Eclipse's Memory Analyzer Tool and
>> here's what I found:
>>
>> One instance of "java.util.concurrent.ScheduledThreadPoolExecutor" loaded
>> by "<system class loader>" occupies 6,801,517,856 (89.16%) bytes. The
>> instance is referenced by
>> org.tmatesoft.svn.core.wc.DefaultSVNRepositoryPool @ 0x561b36858 , loaded
>> by "hudson.ClassicPluginStrategy$AntClassLoader2 @ 0x56057c428". The memory
>> is accumulated in one instance of
>> "java.util.concurrent.RunnableScheduledFuture[]" loaded by "<system class
>> loader>".
>>
>> Does it match JENKINS-34213?
>>
>> On Tuesday, May 17, 2016 at 9:29:16 AM UTC-4, Stephen Connolly wrote:
>>>
>>> Jenkins 2.5 has the fix IIUC
>>>
>>> On 17 May 2016 at 14:28, Stephen Connolly <[email protected]>
>>> wrote:
>>>
>>>> It is fixed, but in the latest version of remoting... which is not
>>>> something you can upgrade without either building a custom build of Jenkins
>>>> or upgrading Jenkins.
>>>>
>>>> You could crack open your jenkins.war and replace the remoting.jar with
>>>> the fixed version and seal it back up again and see if that fixes your
>>>> issue... probably the quickest way to confirm if my theory as to the source
>>>> of your leak is correct, but you would need to know what you are doing
>>>>
>>>> On 17 May 2016 at 14:14, Ugo Bellavance <[email protected]> wrote:
>>>>
>>>>> Thanks, but I can see that this issue is fixed but I don't know how to
>>>>> update my Jenkins install so that I have the fix.  I'm using 1.656.
>>>>>
>>>>> Ugo
>>>>>
>>>>> On Tuesday, May 17, 2016 at 8:56:34 AM UTC-4, Stephen Connolly wrote:
>>>>>>
>>>>>> I will repeat:
>>>>>>
>>>>>> > I am suspecting JENKINS-34213 may be your issue.
>>>>>>
>>>>>> On 17 May 2016 at 13:12, Ugo Bellavance <[email protected]> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Friday, May 13, 2016 at 8:50:56 AM UTC-4, Ugo Bellavance wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thursday, May 12, 2016 at 2:01:41 PM UTC-4, Raymond Accary wrote:
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> If it helps, you might avoid the crash by installing the
>>>>>>>>> monitoring plugin, and triggering garbage collection once the memory 
>>>>>>>>> is
>>>>>>>>> approaching the maximum allocated heap size. This is a workaround 
>>>>>>>>> until
>>>>>>>>> someone is able to diagnose the root cause. I have an open issue :
>>>>>>>>> https://issues.jenkins-ci.org/browse/JENKINS-34573 but thought
>>>>>>>>> I'd run the suggestion.
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>> Have anyone monitored the JVM with VisualVM? I have found that it
>>>>>>>> looks like a specific memory pool may be filling up: Old Gen.  I'm 
>>>>>>>> trying
>>>>>>>> now with:
>>>>>>>>
>>>>>>>> -Djava.awt.headless=true -Dcom.sun.management.jmxremote -Xms10752m
>>>>>>>> -Xmx10752m -XX:NewRatio=10
>>>>>>>>
>>>>>>>> We'll see in a few days.  In the last few days, the problem have
>>>>>>>> occured each morning at around 4:45.  I'm not sure if the same jobs 
>>>>>>>> run on
>>>>>>>> the week-ends as well.
>>>>>>>>
>>>>>>>
>>>>>>> From what I can see, it will always fill the memory.  Probably a
>>>>>>> leak, but I don't know how to be 100% sure about it. When I try to load 
>>>>>>> a
>>>>>>> heap dump in VisualVM, but it shows nothing except "Not supported for 
>>>>>>> this
>>>>>>> JVM.
>>>>>>>
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-- 
Ugo Bellavance ([email protected])

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