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Posted to common-issues@hadoop.apache.org by "liang xie (JIRA)" <ji...@apache.org> on 2013/01/07 10:26:12 UTC

[jira] [Created] (HADOOP-9181) Set daemon flag for HttpServer's QueuedThreadPool

liang xie created HADOOP-9181:
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             Summary: Set daemon flag for HttpServer's QueuedThreadPool
                 Key: HADOOP-9181
                 URL: https://issues.apache.org/jira/browse/HADOOP-9181
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 2.0.2-alpha, 3.0.0
            Reporter: liang xie


we hit HBASE-6031 again, after looking into thread dump, it was caused by the threads from QueuedThreadPool are user thread, not daemon thread, so the hbase shutdownhook never be called and the hbase instance was hung.

Furthermore, i saw daemon be set in fb-20 branch, let's set in trunk codebase as well, it should be safe:)

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