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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2006/04/21 19:14:22 UTC

[jira] Updated: (HADOOP-64) DataNode should be capable of managing multiple volumes

     [ http://issues.apache.org/jira/browse/HADOOP-64?page=all ]

Doug Cutting updated HADOOP-64:
-------------------------------

    Fix Version: 0.3
                     (was: 0.2)

> DataNode should be capable of managing multiple volumes
> -------------------------------------------------------
>
>          Key: HADOOP-64
>          URL: http://issues.apache.org/jira/browse/HADOOP-64
>      Project: Hadoop
>         Type: Improvement

>   Components: dfs
>     Versions: 0.2
>     Reporter: Sameer Paranjpye
>     Assignee: Konstantin Shvachko
>     Priority: Minor
>      Fix For: 0.3

>
> The dfs Datanode can only store data on a single filesystem volume. When a node runs its disks JBOD this means running a Datanode per disk on the machine. While the scheme works reasonably well on small clusters, on larger installations (several 100 nodes) it implies a very large number of Datanodes with associated management overhead in the Namenode.
> The Datanod should be enhanced to be able to handle multiple volumes on a single machine.

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