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From "Caldarale, Charles R" <Chuck.Caldar...@unisys.com>
Subject RE: Blocked threads in tomcat
Date Sat, 01 Nov 2008 00:52:15 GMT
> From: emerson cargnin [mailto:echofloripa.yell@gmail.com]
> Subject: Blocked threads in tomcat
>
> Below is the JConsole result, you can see that there are a lot of
> blocked threads on there.
>
> Stack trace:
> java.lang.Object.wait(Native Method)
> org.apache.commons.httpclient.MultiThreadedHttpConnectionManag
> er.doGetConnection(MultiThreadedHttpConnectionManager.java:518)
> org.apache.commons.httpclient.MultiThreadedHttpConnectionManag
> er.getConnectionWithTimeout(MultiThreadedHttpConnectionManager
> .java:416)
> org.apache.commons.httpclient.HttpMethodDirector.executeMethod
> (HttpMethodDirector.java:153)
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpCli
> ent.java:397)
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpCli
> ent.java:323)
> com.yell.keywordinterpreter.client.query.KeywordInterpreterQue
> ry.sendRequest(KeywordInterpreterQuery.java:99)
> com.yell.keywordinterpreter.client.KeywordInterpreterClientInt
> erface.doUCSKeywordInterpretation(KeywordInterpreterClientInte
> rface.java:45)

The above is not Tomcat code, it's code from your webapp.  (Tomcat itself does not use httpclient.)
 I would have to guess your webapp isn't properly closing outbound connections and returning
them to the pool.

 - Chuck


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