Brandon Li created HDFS-4212:
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Summary: NameNode can't differentiate between a never-created
block and a block which is really missing
Key: HDFS-4212
URL: https://issues.apache.org/jira/browse/HDFS-4212
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 1.2.0, 3.0.0
Reporter: Brandon Li
In one test case, NameNode allocated a block and then was killed before the
client got the addBlock response.
After NameNode restarted, the block which was never created was considered as a
missing block and FSCK would report the file is corrupted.
The problem seems to be that, NameNode can't differentiate between a
never-created block and a block which is really missing.
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