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From "Stu Hood (JIRA)" <>
Subject [jira] Commented: (SOLR-320) DirectUpdateHandler2 threading issue
Date Thu, 26 Jul 2007 17:39:04 GMT


Stu Hood commented on SOLR-320:

Thanks Mike!

> DirectUpdateHandler2 threading issue
> ------------------------------------
>                 Key: SOLR-320
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: update
>    Affects Versions: 1.2
>         Environment: Ubuntu 7.04, Java 1.6.0-b105
>            Reporter: Stu Hood
>            Assignee: Mike Klaas
>             Fix For: 1.3
>         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

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