Liang Xie created HDFS-5766:
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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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