Prabhu Joseph created HDFS-16633:
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             Summary: Reserved Space For Replicas is not released 
                 Key: HDFS-16633
                 URL: https://issues.apache.org/jira/browse/HDFS-16633
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs
    Affects Versions: 3.1.2
            Reporter: Prabhu Joseph
            Assignee: Prabhu Joseph


Have found the Reserved Space For Replicas is not released on a Cx Prod 
cluster. There are few fixes like HDFS-9530 and HDFS-8072 but still the issue 
is not completely fixed. Have tried to debug the root cause but this will take 
lot of time as it is Cx Prod Cluster. 

But we have an easier way to fix the issue completely by releasing any 
remaining reserved space from BlockReceiver#close which is initiated by 
DataXceiver#writeBlock finally. 





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