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Posted to dev@mina.apache.org by Serdar MUSTAOGLU <sm...@yahoo.com> on 2010/06/09 12:06:00 UTC

which Thread makes stop all the world - Gc logs

I have  found that gc logs without gc activites means that another activity that blocks  the system. 
1. How can find which thread can cause the stop all the world on the system
2.
I have 8 CPU server. Why one thread is in a stuck (or in a loop), other
threads cannot work simulteneously. They wait for the stuck Thread.
Regards
Serdar

 49024K->0K(49088K), 0.0134360 secs] 1143252K->1096715K(2170816K), 0.0136590 secs] Times: user=0.08 sys=0.01, real=0.01 secs
Total time for which application threads were stopped: 0.0172190 seconds
Application time: 9.3082360 seconds
2010-06-08T10:12:27.155-0500: 2015.285: [GC 2015.285: ParNew
Desired survivor size 32768 bytes, new threshold 0 (max 0)
: 49024K->0K(49088K), 0.0163970 secs] 1145739K->1099201K(2170816K), 0.0165920 secs Times: user=0.07 sys=0.01, real=0.02 secs
Total time for  which application threads were stopped: 0.0201840 seconds
Application time:  5.4705750 seconds
Total time for which  application threads were stopped: 0.8505860 seconds
Application time:  0.0012020 seconds
Total time for which application threads were stopped:  0.8519010 seconds
Application time: 0.0004510 seconds
Total time for which  application threads were stopped: 0.8508060 seconds
Application time:  0.0007170 seconds


      

Re: which Thread makes stop all the world - Gc logs

Posted by Emmanuel Lécharny <el...@apache.org>.
On 6/9/10 2:00 PM, Serdar MUSTAOGLU wrote:
> it is not related to MINA. but i think anyone may see this problem before. Because this is common problem for JVM and GC.
>    

You might try http://stackoverflow.com/ instead of this mailing list then.

This is the MINA dev mailing list, please keep it focused.

Thanks

-- 
Regards,
Cordialement,
Emmanuel Lécharny
www.nextury.com



Re: which Thread makes stop all the world - Gc logs

Posted by Serdar MUSTAOGLU <sm...@yahoo.com>.
it is not related to MINA. but i think anyone may see this problem before. Because this is common problem for JVM and GC.

regards
serdar




----- Original Message ----
From: Emmanuel Lecharny <el...@gmail.com>
To: dev@mina.apache.org
Sent: Wed, June 9, 2010 1:18:23 PM
Subject: Re: which Thread makes stop all the world - Gc logs

On 6/9/10 12:06 PM, Serdar MUSTAOGLU wrote:
> I have  found that gc logs without gc activites means that another activity that blocks  the system.
> 1. How can find which thread can cause the stop all the world on the system
> 2.
> I have 8 CPU server. Why one thread is in a stuck (or in a loop), other
> threads cannot work simulteneously. They wait for the stuck Thread.
>    
Hmmm. How is it connected to MINA ?

-- Regards,
Cordialement,
Emmanuel Lécharny
www.nextury.com


      

Re: which Thread makes stop all the world - Gc logs

Posted by Emmanuel Lecharny <el...@gmail.com>.
On 6/9/10 12:06 PM, Serdar MUSTAOGLU wrote:
> I have  found that gc logs without gc activites means that another activity that blocks  the system.
> 1. How can find which thread can cause the stop all the world on the system
> 2.
> I have 8 CPU server. Why one thread is in a stuck (or in a loop), other
> threads cannot work simulteneously. They wait for the stuck Thread.
>    
Hmmm. How is it connected to MINA ?

-- 
Regards,
Cordialement,
Emmanuel Lécharny
www.nextury.com