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From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-951) DFSClient should handle all nodes in a pipeline failed.
Date Fri, 05 Feb 2010 02:48:28 GMT
DFSClient should handle all nodes in a pipeline failed.
-------------------------------------------------------

                 Key: HDFS-951
                 URL: https://issues.apache.org/jira/browse/HDFS-951
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: He Yongqiang


processDatanodeError-> setupPipelineForAppendOrRecovery  will set streamerClosed to be
true if all nodes in the pipeline failed in the past, and just return.
Back to run() in data streammer,  the logic 
 if (streamerClosed || hasError || dataQueue.size() == 0 || !clientRunning) {
                continue;
  }
will just let set closed=true in closeInternal().

And DataOutputStream will not get a chance to clean up. The DataOutputStream will throw exception
or return null for following write/close.
It will leave the file in writing in incomplete state.

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