Re: CPU consuming thread, help to analyze

>
> Hi,
> I am a 64 bit user with
>
> /opt/java/bin/java -version
> java version "1.6.0_16"
> Java(TM) SE Runtime Environment (build 1.6.0_16-b01)
> Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode)
>
> and
>
> cat /etc/SuSE-release
> SUSE Linux Enterprise Server 10 (x86_64)
> VERSION = 10
> PATCHLEVEL = 3
>
>
> Regards,
> Harri
>
>
>
> Oleksiy Stashok wrote:
>>
>> Hi,
>>
>> which JDK and OS are you using?
>>
>> Thanks.
>>
>> WBR,
>> Alexey.
>>
>> PS: can you pls. cc me, cause I'm not on the sailfin list.
>>
>> On Aug 17, 2010, at 17:07 , Binod PG wrote:
>>
>>> It is the selector thread that selects a set of keys that are ready
>>> for IO operations.
>>>
>>> Hope you are using latest JDK 1.6 available (just to make sure that
>>> there is no selector spinning
>>> issues with your JDK).
>>>
>>> Alexy might know if there is any known selector spinning issues with
>>> grizzly 1.8.x...
>>>
>>> - Binod.
>>>
>>> On 17-Aug-10, at 6:23 PM, Harri Jaakkola wrote:
>>>
>>>>
>>>> Hi,
>>>> Bear with me, I am not very familiar in Sailfin/Glassfish code, but
>>>> I hope
>>>> you are the ones to help...
>>>>
>>>> I have been running a small 2 instance SGCS cluster with very basic
>>>> SIP and
>>>> HTTP towards simple test servlets for some hours, and after
>>>> shutting down
>>>> the client, I can still after several idle hours see ONE of the
>>>> instances
>>>> consuming CPU. I did some analysis and think this may be the
>>>> consuming
>>>> thread:
>>>>
>>>> "Thread-15" prio=10 tid=0x00002aab7a7d0000 nid=0x448b runnable
>>>> [0x0000000041a08000]
>>>> java.lang.Thread.State: RUNNABLE
>>>>      at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
>>>>      at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:
>>>> 215)
>>>>      at
>>>> sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
>>>>      at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:
>>>> 69)
>>>>      - locked <0x00002aaab75fb3b8> (a sun.nio.ch.Util$1)
>>>>      - locked <0x00002aaab75fb3d0> (a
>>>> java.util.Collections$UnmodifiableSet)
>>>>      - locked <0x00002aaab75f3b68> (a sun.nio.ch.EPollSelectorImpl)
>>>>      at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
>>>>      at
>>>> com.sun.grizzly.TCPSelectorHandler.select(TCPSelectorHandler.java:
>>>> 469)
>>>>      at com.sun.grizzly.Controller.doSelect(Controller.java:369)
>>>>      at
>>>> com
>>>> .sun.grizzly.SelectorHandlerRunner.run(SelectorHandlerRunner.java:
>>>> 82)
>>>>      at
>>>> com
>>>> .sun.grizzly.Controller.startSelectorHandlerRunner(Controller.java:
>>>> 1136)
>>>>      at com.sun.grizzly.Controller.start(Controller.java:943)
>>>>      at com.sun.grizzly.Controller.run(Controller.java:813)
>>>>      at java.lang.Thread.run(Thread.java:619)
>>>>
>>>> Any ideas of what can cause this? What does this thread do?
>>>>
>>>> I am currently on SGCS,
>>>> Sun GlassFish Communications Server 2.0 ((v2.1 Patch11)(9.1_02
>>>> Patch17))
>>>> (build b01-p05)
>>>>
>>>> OLP and CLB is enabled.
>>>>
>>>> Best Regards,
>>>> Harri
>>>>
>>>> --
>>>> View this message in context:
>>>> http://old.nabble.com/CPU-consuming-thread%2C-help-to-analyze-tp29449258p29449258.html
>>>> Sent from the SailFin - Development mailing list archive at
>>>> Nabble.com.
>>>>
>>>>
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>>>
>>
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> Nabble.com.
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