Bug 58410 - org.apache.catalina.loader.WebappClassLoader clearReferencesThreads The web application [/message-center-web] appears to have started a thread named [New I/O worker #1] but has failed to stop it. This is very likely to create a memory leak.
Summary: org.apache.catalina.loader.WebappClassLoader clearReferencesThreads The web a...
Status: RESOLVED INVALID
Alias: None
Product: Tomcat 7
Classification: Unclassified
Component: Catalina (show other bugs)
Version: 7.0.64
Hardware: PC Linux
: P2 normal (vote)
Target Milestone: ---
Assignee: Tomcat Developers Mailing List
URL:
Keywords: ErrorMessage
Depends on:
Blocks:
 
Reported: 2015-09-15 04:15 UTC by mauersu
Modified: 2015-09-15 05:23 UTC (History)
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Description mauersu 2015-09-15 04:15:47 UTC 
the all message :

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September 15, 2015 7:40:35 下午 org.apache.catalina.startup.HostConfig undeploy
info: Undeploying context [/message-center-web]
September 15, 2015 7:40:35 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
serious: The web application [/message-center-web] appears to have started a thread named [New I/O worker #1] but has failed to stop it. This is very likely to create a memory leak.
September 15, 2015 7:40:35 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
serious: The web application [/message-center-web] appears to have started a thread named [New I/O worker #2] but has failed to stop it. This is very likely to create a memory leak.
September 15, 2015 7:40:35 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
serious: The web application [/message-center-web] appears to have started a thread named [New I/O server boss #3] but has failed to stop it. This is very likely to create a memory leak.
September 15, 2015 7:40:35 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
serious: The web application [/message-center-web] appears to have started a thread named [dubbo-remoting-server-heartbeat-thread-1] but has failed to stop it. This is very likely to create a memory leak.
September 15, 2015 7:40:35 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
serious: The web application [/message-center-web] appears to have started a thread named [DubboRegistryFailedRetryTimer-thread-1] but has failed to stop it. This is very likely to create a memory leak.
September 15, 2015 7:40:35 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
serious: The web application [/message-center-web] appears to have started a thread named [ZkClient-EventThread-22-10.100.142.78:2181] but has failed to stop it. This is very likely to create a memory leak.

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i use netty in my appweb, and hot deploy my app, the error occur when undeploy  old-app  ,see above.

i find the context property "clearReferencesThreads" and set value "true" ,but doesn't  helpful. so please help me. thanks .
Comment 1 mauersu 2015-09-15 04:25:31 UTC 
sorry , it is "clearReferencesStopThreads" not "clearReferencesThreads"
and 
i know the reason,but i can do nothing.
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i think reason is , the netty boss and worker thread create by the app itself, the tomcat cannot stop it ? 
please help me , i am so helpless.
Comment 2 Chuck Caldarale 2015-09-15 04:34:45 UTC 
Bugzilla is not a support forum.  Post your query on the Tomcat Users mailing list, as this is clearly an application bug.
Comment 3 mauersu 2015-09-15 05:23:44 UTC 
(In reply to Chuck Caldarale from comment #2)
> Bugzilla is not a support forum.  Post your query on the Tomcat Users
> mailing list, as this is clearly an application bug.

sorry . i 'm  fresh