Lukas Majercak created HDFS-11576:
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Summary: Block recovery will fail indefinitely if recovery time >
heartbeat interval
Key: HDFS-11576
URL: https://issues.apache.org/jira/browse/HDFS-11576
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode, hdfs, namenode
Affects Versions: 3.0.0-alpha2, 3.0.0-alpha1, 2.7.3, 2.7.2, 2.7.1
Reporter: Lukas Majercak
Assignee: Lukas Majercak
Priority: Critical
Block recovery will fail indefinitely if the time to recover a block is always
longer than the heartbeat interval. Scenario:
1. DN sends heartbeat
2. NN sends a recovery command to DN, recoveryID=X
3. DN starts recovery
4. DN sends another heartbeat
5. NN sends a recovery command to DN, recoveryID=X+1
6. DN calls commitBlockSyncronization after succeeding with first recovery to
NN, which fails because X < X+1
...
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