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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3310) Lease recovery for append
Date Wed, 28 May 2008 20:21:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo (Nicholas), SZE updated HADOOP-3310:

    Attachment: 3310_20080528.patch

3310_20080528.patch: passes all tests in TestFileCreation (with a get-around of HADOOP-3453)

> Lease recovery for append
> -------------------------
>                 Key: HADOOP-3310
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3310
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 3310_20080514.patch, 3310_20080516b.patch, 3310_20080516c.patch,
3310_20080519.patch, 3310_20080519b.patch, 3310_20080520.patch, 3310_20080521.patch, 3310_20080522b.patch,
3310_20080522c.patch, 3310_20080523.patch, 3310_20080524_dhruba.patch, 3310_20080527.patch,
> In order to support file append, a GenerationStamp is associated with each block.  Lease
recovery will be performed when there is a possibility that the replicas of a block in a lease
may have different GenerationStamp values.
> For more details, see the documentation in HADOOP-1700.

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