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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-978) Record every new block allocation of a file into the transaction log.
Date Sun, 14 Feb 2010 09:47:29 GMT
Record every new block allocation of a file into the transaction log.
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                 Key: HDFS-978
                 URL: https://issues.apache.org/jira/browse/HDFS-978
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
            Reporter: dhruba borthakur


HDFS should record every new block allocation (of a file) into its transaction logs. In the
current code, block allocations are persisted only when a file is closed or hflush-ed. This
feature will enable HDFS writers to survive namenode restarts.

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