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https://issues.apache.org/jira/browse/HDFS-16633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prabhu Joseph resolved HDFS-16633.
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Fix Version/s: 3.4.0
Resolution: Fixed
> Reserved Space For Replicas is not released on some cases
> ---------------------------------------------------------
>
> 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: Ashutosh Gupta
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Have found the Reserved Space For Replicas is not released on some cases in 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 of the Replica from the Volume.
> DataXceiver#writeBlock finally will call BlockReceiver#close which will check
> if the ReplicaInfo has any remaining reserved space, if so release from the
> Volume.
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