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From Robert Muir <rcm...@gmail.com>
Subject Re: Replication: the web application [/solr] .. likely to create a memory leak
Date Tue, 04 Jan 2011 14:34:59 GMT
On Tue, Jan 4, 2011 at 9:23 AM, Markus Jelsma
<markus.jelsma@openindex.io> wrote:
> Hi,
>
> Anyone seen this before when stopping of restarting Solr 1.4.1 running as
> slave under Tomcat 6?
>
> SEVERE: The web application [/solr] appears to have started a thread named
> [MultiThreadedHttpConnectionManager cleanup] but has failed to stop it. This
> is very likely to create a memory leak.
>
> It can also trigger multiple related exceptions errors:
>
>
> Jan 4, 2011 3:18:13 PM org.apache.catalina.loader.WebappClassLoader
> clearReferencesThreads
> SEVERE: The web application [/solr] appears to have started a thread named
> [pool-1-thread-1] but has failed to stop it. This is very likely to create a
> memory leak.

fyi, you can also see this by running its unit test:

    [junit] Testsuite: org.apache.solr.handler.TestReplicationHandler
    [junit] Tests run: 7, Failures: 0, Errors: 0, Time elapsed: 25.997 sec
    [junit] ------------- Standard Error -----------------
    [junit] WARNING: test class left thread running:
Thread[MultiThreadedHttpConnectionManager cleanup,5,main]
    [junit] WARNING: test class left thread running:
Thread[pool-44-thread-1,5,main]

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