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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-517) Introduce BlockInfoUnderConstruction to reflect block replica states while writing.
Date Wed, 19 Aug 2009 21:59:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HDFS-517:
-------------------------------------

    Attachment: Append-UCBlock-h265.patch

Same patch for the merged append branch.

> 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-h265.patch, Append-UCBlock.patch, Append-UCBlock.patch,
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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