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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3689) Add support for variable length block
Date Wed, 20 Aug 2014 19:38:26 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104411#comment-14104411
] 

Jing Zhao commented on HDFS-3689:
---------------------------------

The sparse file idea sounds good to me. Let me see if I can implement a demo for this. Also,
let's hear from [~owen.omalley], [~hagleitn], and [~gopalv] who understand the hive use cases
to see if this can meet their requirement.

> Add support for variable length block
> -------------------------------------
>
>                 Key: HDFS-3689
>                 URL: https://issues.apache.org/jira/browse/HDFS-3689
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, hdfs-client, namenode
>    Affects Versions: 3.0.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>         Attachments: HDFS-3689.000.patch, HDFS-3689.001.patch
>
>
> Currently HDFS supports fixed length blocks. Supporting variable length block will allow
new use cases and features to be built on top of HDFS. 



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