On 18/08/2015 16:50, musafir wrote: > Hello, ugraded tomcat from 6.0.36(jdk 6) to tomcat7.0.57 (jdk7).. > os:centos 6.6 ...seeing high cpu spike after upgrade.... doing top > and thread dump shows only thread that is always using cpu is:
How have you matched the thread using CPU in top with the thread in the thread dump? Mark > "ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon > prio=10 tid=0x00007ff8fc599800 nid=0xc1d2e waiting on condition > [0x00007ff803ffe000] > java.lang.Thread.State: TIMED_WAITING (sleeping) > at java.lang.Thread.sleep(Native Method) > at > org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1513) > at java.lang.Thread.run(Thread.java:745) > > disabled backgroundProcessorDelay (backgroundProcessorDelay=-1) > ..don't see any thread that is always using cpu.. > > Q: why backgroundProcessorDelay will cause cpu spike. Is this disabled > in tomcat6 by default? > Q: will disabling backgroundProcessorDelay cause any other > performance issues with tomcat7. > > > Thanks for Help!! > > Regards > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
