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From "zhouyingchao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11895) Committed block should be completed during block report if usable replicas are enough
Date Sat, 27 May 2017 03:16:04 GMT
zhouyingchao created HDFS-11895:
-----------------------------------

             Summary: Committed block should be completed during block report if usable replicas
are enough
                 Key: HDFS-11895
                 URL: https://issues.apache.org/jira/browse/HDFS-11895
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: zhouyingchao
            Priority: Minor


In a 2.4 HDFS cluster, we found an issue that a completeFile call failed since the file's
last block's three replica were in decommissioning state. And finally the decommissioning
was stuck. We figured out the issue had been fixed by HDFS-11499. The fix of HDFS-11499 completes
a committed block if usable replicas are enough in close/recovery code path.  Besides that,
we think we'd better complete a committed block in block report path if usable replicas are
engouth.  It helps the condition where a client calls completeFile then exit abnormally (without
retry) and all its last block's replica DNs are in decommissioning state.



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