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Key: HDFS-1058
URL: https://issues.apache.org/jira/browse/HDFS-1058
Project: Hadoop HDFS
Issue Type: Bug
Components: data-node, hdfs client
Affects Versions: 0.21.0, 0.22.0
Reporter: Todd Lipcon
If there is a writer and concurrent reader, the following can occur:
- The writer allocates a new block from the NN
- The reader calls getBlockLocations
- Reader connects to the DN and calls getReplicaVisibleLength
- writer still has not talked to the DN, so DN doesn't know about the block and throws an error
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