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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4848) NN should check a block's length even if the block is not a new block when processing a blockreport
Date Fri, 12 Dec 2008 01:15:44 GMT
NN should check a block's length even if the block is not a new block when processing a blockreport
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                 Key: HADOOP-4848
                 URL: https://issues.apache.org/jira/browse/HADOOP-4848
             Project: Hadoop Core
          Issue Type: Bug
          Components: dfs
    Affects Versions: 0.18.0
            Reporter: Hairong Kuang
            Priority: Blocker
             Fix For: 0.18.3


If the block length does not match the one in the blockMap, we should mark the block as corrupted.
This could help clearing the polluted replicas caused by HADOOP-4810 and also help detect
the on-disk block gets truncated/enlarged manually by accident.

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