FAQ
commitBlockSynchronization() should directly update block GS and length.
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Key: HDFS-736
URL: https://issues.apache.org/jira/browse/HDFS-736
Project: Hadoop HDFS
Issue Type: Improvement
Components: name-node
Affects Versions: 0.21.0
Reporter: Konstantin Shvachko
Assignee: Konstantin Shvachko
Fix For: 0.21.0


{{FSNamesystem.commitBlockSynchronization()}} updates block's generation stamp and length by first removing the old block instance from blocksMap and then inserting the new instance back. This was necessary when GS was a part of the block key. After HDFS-512 the GS along with the block length can be updated directly in the blocksMap entry.

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postedOct 26, '09 at 9:45p
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