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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-565) Introduce block committing logic during new block allocation and file close.
Date Tue, 25 Aug 2009 01:10:59 GMT
Introduce block committing logic during new block allocation and file close.
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                 Key: HDFS-565
                 URL: https://issues.apache.org/jira/browse/HDFS-565
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: hdfs client, name-node
    Affects Versions: Append Branch
            Reporter: Konstantin Shvachko
            Assignee: Konstantin Shvachko
             Fix For: Append Branch


{{ClientProtocol}} methods {{addBlock()}} and {{complete()}} need to include additional parameter
- a block, which has been successfully written to data-nodes. By sending this block to the
name-node the client confirms the generation stamp of the block and its length. The block
on the name-node changes its state to committed and will become complete as long as one of
the finalized replicas reported by data-nodes.

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