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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-606) ConcurrentModificationException in invalidateCorruptReplicas()
Date Wed, 09 Sep 2009 02:59:58 GMT
ConcurrentModificationException in invalidateCorruptReplicas()
--------------------------------------------------------------

                 Key: HDFS-606
                 URL: https://issues.apache.org/jira/browse/HDFS-606
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 0.21.0
            Reporter: Konstantin Shvachko
            Assignee: Konstantin Shvachko
             Fix For: 0.21.0


{{BlockManager.invalidateCorruptReplicas()}} iterates over DatanodeDescriptor-s while removing
corrupt replicas from the descriptors. This causes {{ConcurrentModificationException}} if
there is more than one replicas of the block. I ran into this exception debugging different
scenarios in append, but it should be fixed in the trunk too.

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