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https://issues.apache.org/jira/browse/HDFS-8547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14575259#comment-14575259
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Arpit Agarwal commented on HDFS-8547:
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Hi Kihwal, dup of HDFS-8072?
> The space reservation for RBW block is leaking
> ----------------------------------------------
>
> Key: HDFS-8547
> URL: https://issues.apache.org/jira/browse/HDFS-8547
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kihwal Lee
> Priority: Critical
>
> HDFS-6898 added the feature to reserve space on datanode when creating RBW
> replicas. We have noticed that nonDfsUsed increasing on some of the
> datanodes. Heap dump of datanodes has revealed that {{reservedForRbw}} was
> huge for each volume. There weren't many rbw blocks at that time, so
> datanode must leaking it.
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