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Posted to hdfs-issues@hadoop.apache.org by "Kihwal Lee (JIRA)" <ji...@apache.org> on 2015/06/05 23:28:00 UTC

[jira] [Created] (HDFS-8547) The space reservation for RBW block is leaking

Kihwal Lee created HDFS-8547:
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             Summary: 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 (~90GB) for each volume.  There weren't many rbw blocks at that time, so datanode must leaking it.



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