zhouyingchao created HDFS-11895:
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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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