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Posted to hdfs-dev@hadoop.apache.org by "Liang Xie (JIRA)" <ji...@apache.org> on 2014/01/14 10:38:57 UTC

[jira] [Created] (HDFS-5766) bypass addToDeadNodes() while InvalidEncryptionKeyException happens in fetchBlockByteRange

Liang Xie created HDFS-5766:
-------------------------------

             Summary: bypass addToDeadNodes() while InvalidEncryptionKeyException happens in fetchBlockByteRange
                 Key: HDFS-5766
                 URL: https://issues.apache.org/jira/browse/HDFS-5766
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs-client
    Affects Versions: 3.0.0
            Reporter: Liang Xie
            Assignee: Liang Xie


Found this issue when i read fetchBlockByteRange code:
If we hit InvalidEncryptionKeyException, current logic is:
1) reduce the retry count
2) clearDataEncryptionKey
3) addToDeadNodes
4) retry in another loop...

If i am correct, we should treat InvalidEncryptionKeyException similar with InvalidBlockToken branch, bypassing addToDeadNodes(), since it's a client related, not caused by DN side:)



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