https://bz.apache.org/bugzilla/show_bug.cgi?id=58258
Bug ID: 58258
Summary: cpu spike upgrade from tomcat 6.0.x to tomcat 7.0.57
Product: Tomcat 7
Version: 7.0.57
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
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:
"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.
Regards
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