[jira] Updated: (SOLR-320) DirectUpdateHandler2 threading issue

["Stu Hood (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stu Hood updated SOLR-320:
--------------------------

    Attachment: solr-runner.tgz

Here is a little embedded Solr testcase that exhibits the problem. See the README file for instructions.

> DirectUpdateHandler2 threading issue
> ------------------------------------
>
>                 Key: SOLR-320
>                 URL: https://issues.apache.org/jira/browse/SOLR-320
>             Project: Solr
>          Issue Type: Bug
>          Components: update
>    Affects Versions: 1.2
>         Environment: Ubuntu 7.04, Java 1.6.0-b105
>            Reporter: Stu Hood
>         Attachments: solr-runner.tgz
>
>
> While working on an embedded Solr solution, I noticed that one of the threads created during typical usage of (SolrCore, DocumentBuilder and UpdateHandler), was not dying.
> I wrote a small embedded Solr app, and running it under JDB made it clear that the environment was not finishing cleanly because of a thread called "pool-2-thread-1" in "cond. waiting" state. After a quick grep, I saw that only one class uses a thread pool, and that is the DirectUpdateHandler2. It uses an instance of ScheduledExecutorService to manage autocommit threads, but it apparently isn't dieing correctly.
> I'll start working on a patch, but the original author of the handler probably has more knowledge (see https://issues.apache.org/jira/browse/SOLR-65)

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