river-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Peter Jones <...@roundroom.net>
Subject Re: DGC threads issue
Date Fri, 13 Jan 2012 15:12:33 GMT
Bryan,

Thanks, that is indeed helpful to see, to be clear about which kind of threads are causing
the problem.

-- Peter


On Jan 13, 2012, at 9:52 AM, Bryan Thompson wrote:

> Peter,
> 
> There is very little information in there.  Basically a whole lot of "DGC Lease Checker"
threads all sleeping in Thread.run().  
> 
> The stacks below are from a capture in yourkit that I had on hand from when I was investigating
this problem.  The workload had been removed from the service but the leases had not yet expired.
> 
> Thanks,
> Bryan
> 
> Stacks at 09:16:02 AM (uptime 1:48:56)
> 
> 
> (JSK) ConnectionManager.Reaper [SLEEPING] CPU time: 0:00
> java.lang.Thread.sleep(long)
> net.jini.jeri.connection.ConnectionManager$Reaper.run()
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Threa
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> (JSK) DGC Lease Checker [SLEEPING] CPU time: 0:hread.run()
> 
> 
> 
> com.bigdata.journal.ConcurrencyManager.writeService48 [WAITING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> com.bigdata.journal.ConcurrencyManager.writeService49 [WAITING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
> com.bigdata.journal.ConcurrencyManager.writeService5 [WAITING] CPU time: 0:00
> java.lang.Thread.run()
> 
> 
> 
>> -----Original Message-----
>> From: Peter Jones [mailto:pcj@roundroom.net] 
>> Sent: Friday, January 13, 2012 9:31 AM
>> To: user@river.apache.org
>> Cc: dev@river.apache.org
>> Subject: Re: DGC threads issue
>> 
>> Bryan,
>> 
>> I meant that it might help for the list to "see" the specific 
>> threads in question, as they appear in a JVM thread dump 
>> (name, stack frames, etc.), just to be sure that we're 
>> talking about the same thing.  There is more than one kind of 
>> thread related to DGC, and it seems that the implementation 
>> has changed recently.  But I gather that Peter F. may have 
>> identified the root cause.
>> 
>> Cheers,
>> 
>> -- Peter
>> 
>> 
> <DGCThreadDump.txt>


Mime
View raw message