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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7611) deleteSnapshot and delete of a file can leave orphaned blocks in the blocksMap on NameNode restart.
Date Sun, 25 Jan 2015 14:21:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14291107#comment-14291107
] 

Hudson commented on HDFS-7611:
------------------------------

SUCCESS: Integrated in Hadoop-Hdfs-trunk #2016 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/2016/])
HDFS-7676. Fix TestFileTruncate to avoid bug of HDFS-7611. Contributed by Konstantin Shvachko.
(shv: rev 370396509deb5c9319c5db880f3e4058b20a7514)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFileTruncate.java


> deleteSnapshot and delete of a file can leave orphaned blocks in the blocksMap on NameNode
restart.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7611
>                 URL: https://issues.apache.org/jira/browse/HDFS-7611
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.6.0
>            Reporter: Konstantin Shvachko
>            Assignee: Byron Wong
>            Priority: Critical
>         Attachments: blocksNotDeletedTest.patch, testTruncateEditLogLoad.log
>
>
> If quotas are enabled a combination of operations *deleteSnapshot* and *delete* of a
file can leave  orphaned  blocks in the blocksMap on NameNode restart. They are counted as
missing on the NameNode, and can prevent NameNode from coming out of safeMode and could cause
memory leak during startup.



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