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https://issues.apache.org/jira/browse/HDFS-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Shvachko updated HDFS-517:
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Status: Patch Available (was: Open)
> Introduce BlockInfoUnderConstruction to reflect block replica states while
> writing.
> -----------------------------------------------------------------------------------
>
> Key: HDFS-517
> URL: https://issues.apache.org/jira/browse/HDFS-517
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: 0.21.0
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Fix For: Append Branch
>
> Attachments: Append-UCBlock.patch
>
>
> Currently when a block is created its locations are stored in
> {{INodeFileUnderConstruction.targets}}, which correspond to the last
> allocated block. With the new append design we will need to keep track of
> block replicas for several blocks rather than just the last one.
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