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Date: Mon, 12 Nov 2012 19:13:12 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <2031096876.102051.1352747592297.JavaMail.jiratomcat@arcas>
Subject: [jira] [Created] (HDFS-4176) EditLogTailer should call rollEdits
 with a timeout
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Todd Lipcon created HDFS-4176:
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             Summary: EditLogTailer should call rollEdits with a timeout
                 Key: HDFS-4176
                 URL: https://issues.apache.org/jira/browse/HDFS-4176
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: ha, name-node
    Affects Versions: 2.0.2-alpha, 3.0.0
            Reporter: Todd Lipcon


When the EditLogTailer thread calls rollEdits() on the active NN via RPC, it currently does so without a timeout. So, if the active NN has frozen (but not actually crashed), this call can hang forever. This can then potentially prevent the standby from becoming active.

This may actually considered a side effect of HADOOP-6762 -- if the RPC were interruptible, that would also fix the issue.

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