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Posted to common-dev@hadoop.apache.org by "Jothi Padmanabhan (JIRA)" <ji...@apache.org> on 2008/09/08 12:50:44 UTC

[jira] Updated: (HADOOP-3514) Reduce seeks during shuffle, by inline crcs

     [ https://issues.apache.org/jira/browse/HADOOP-3514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jothi Padmanabhan updated HADOOP-3514:
--------------------------------------

    Attachment: hadoop-3514-v12.patch

> Reduce seeks during shuffle, by inline crcs
> -------------------------------------------
>
>                 Key: HADOOP-3514
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3514
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.18.0
>            Reporter: Devaraj Das
>            Assignee: Jothi Padmanabhan
>             Fix For: 0.19.0
>
>         Attachments: hadoop-3514-v1.patch, hadoop-3514-v10.patch, hadoop-3514-v11.patch, hadoop-3514-v12.patch, hadoop-3514-v2.patch, hadoop-3514-v3.patch, hadoop-3514-v4.patch, hadoop-3514-v5.patch, hadoop-3514-v6.patch, hadoop-3514-v7.patch, hadoop-3514-v8.patch, hadoop-3514-v9.patch, hadoop-3514.patch
>
>
> The number of seeks can be reduced by half in the iFile if we move the crc into the iFile rather than having a separate file.

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