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Date: Wed, 6 Mar 2013 03:14:13 +0000 (UTC)
From: "Jing Zhao (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.12635481.1362539612415.388769.1362539653671@arcas>
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Subject: [jira] [Created] (HDFS-4557) Fix FSDirectory#delete when
 INode#cleanSubtree returns 0
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Jing Zhao created HDFS-4557:
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             Summary: Fix FSDirectory#delete when INode#cleanSubtree returns 0
                 Key: HDFS-4557
                 URL: https://issues.apache.org/jira/browse/HDFS-4557
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Jing Zhao
            Assignee: Jing Zhao


Currently INode#cleanSubtree is used to delete files/directories and collect corresponding blocks for future deletion. Its return value can be 0 even if file/dir has been deleted because we save snapshot copies. This breaks the original logic in FSDirectory#delete since FSDirectory#delete expects a positive value from a successful deletion. This bug may cause some bad scenario such as a lease remains in NN while the file has been moved to snapshot.

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