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Date: Tue, 26 Oct 2010 15:07:20 -0400 (EDT)
From: "Joydeep Sen Sarma (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Subject: [jira] Created: (HDFS-1478) unsafe interrupted condition check in
 DFSClient lease renewal thread
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unsafe interrupted condition check in DFSClient lease renewal thread
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                 Key: HDFS-1478
                 URL: https://issues.apache.org/jira/browse/HDFS-1478
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Joydeep Sen Sarma
            Assignee: dhruba borthakur


the lease renewal thread bails out if thread interrupted condition is set:

    while (clientRunning && !Thread.interrupted()) {

this seems incorrect. we have seen cases (MAPREDUCE-2157) where (apparently) log4j may be setting the interrupted condition. if that is the case - the lease renewal thread will terminate - and i think we have heard of cases where lease renewal is not happening. so these seem to fit.


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