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Re: [jetty-users] Jetty5: CPU-Usage Problem
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Some additional infos:
root@phobos ~ # uname -a
Linux phobos 2.6.32-6-pve #1 SMP Mon Jan 23 08:27:52 CET 2012 x86_64 GNU/Linux
root@phobos [...] # ./java -version
java version "1.7.0_03"
Java(TM) SE Runtime Environment (build 1.7.0_03-b04)
Java HotSpot(TM) 64-Bit Server VM (build 22.1-b02, mixed mode)
-----Original Message-----
From: jetty-users-bounces@xxxxxxxxxxx [mailto:jetty-users-bounces@xxxxxxxxxxx] On Behalf Of Maximilian Böhm
Sent: Tuesday, May 22, 2012 2:51 PM
To: jetty-users@xxxxxxxxxxx
Subject: [jetty-users] Jetty5: CPU-Usage Problem
Hi Guys,
We are running jetty5 on approximately ~50 server upwards. Mostly there are more than 40 virtualhosts on a machine.
Now we have a 100% cpu-usage on two of this servers. We already switched the hardware to virtualisation and now I replaced all regulary programfiles from files of a working server.
Through ps -eLf and jstack I found the following (never ending) Thread:
"SocketListener0-7" prio=10 tid=0x0000000001eb7000 nid=0x5d7a runnable [0x00007f569b2fc000]
java.lang.Thread.State: RUNNABLE
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Throwable.java:782)
- locked <0x00000000d1b33c60> (a java.lang.IllegalMonitorStateException)
at java.lang.Throwable.<init>(Throwable.java:250)
at java.lang.Exception.<init>(Exception.java:54)
at java.lang.RuntimeException.<init>(RuntimeException.java:51)
at java.lang.IllegalMonitorStateException.<init>(IllegalMonitorStateException.java:50)
at org.mortbay.util.DateCache.format(DateCache.java:250)
- locked <0x00000000ddc05c90> (a org.mortbay.util.DateCache)
at org.mortbay.http.HttpRequest.getTimeStampStr(HttpRequest.java:154)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:937)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
What can cause this?
I know, jetty5... Upgrading and so on. We work on it. We made a mistake ealier, integrating jetty too deep into our software...
Best regards & Thanks
Max Böhm
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