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Posted to hdfs-dev@hadoop.apache.org by "Brandon Li (JIRA)" <ji...@apache.org> on 2013/01/31 01:09:13 UTC
[jira] [Resolved] (HDFS-4212) NameNode can't differentiate between
a never-created block and a block which is really missing
[ https://issues.apache.org/jira/browse/HDFS-4212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Li resolved HDFS-4212.
------------------------------
Resolution: Duplicate
> NameNode can't differentiate between a never-created block and a block which is really missing
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-4212
> URL: https://issues.apache.org/jira/browse/HDFS-4212
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 1.2.0, 3.0.0
> Reporter: Brandon Li
> Assignee: Brandon Li
> Attachments: hdfs-4212-junit-test.patch
>
>
> In one test case, NameNode allocated a block and then was killed before the client got the addBlock response.
> After NameNode restarted, the block which was never created was considered as a missing block and FSCK would report the file is corrupted.
> The problem seems to be that, NameNode can't differentiate between a never-created block and a block which is really missing.
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