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Posted to hdfs-dev@hadoop.apache.org by "Arpit Agarwal (JIRA)" <ji...@apache.org> on 2014/08/21 02:09:29 UTC

[jira] [Created] (HDFS-6898) DN must reserve space for a full block when an RBW block is created

Arpit Agarwal created HDFS-6898:
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             Summary: DN must reserve space for a full block when an RBW block is created
                 Key: HDFS-6898
                 URL: https://issues.apache.org/jira/browse/HDFS-6898
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode
    Affects Versions: 2.5.0
            Reporter: Arpit Agarwal
            Assignee: Arpit Agarwal


DN will successfully create two RBW blocks on the same volume even if the free space is sufficient for just one full block.

One or both block writers may subsequently get a DiskOutOfSpace exception. This can be avoided by allocating space up front.



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