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Posted to common-dev@hadoop.apache.org by "Hairong Kuang (JIRA)" <ji...@apache.org> on 2007/01/02 20:47:27 UTC
[jira] Updated: (HADOOP-842) change the open method in
ClientProtocol to take an additional argument: clientMachine
[ http://issues.apache.org/jira/browse/HADOOP-842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HADOOP-842:
---------------------------------
Attachment: open.patch
> change the open method in ClientProtocol to take an additional argument: clientMachine
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-842
> URL: http://issues.apache.org/jira/browse/HADOOP-842
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.9.2
> Reporter: Hairong Kuang
> Assigned To: Hairong Kuang
> Fix For: 0.10.0
>
> Attachments: open.patch
>
>
> The open method returns a list of blocks that belong to a file and, for each block, a list of datanodes that contain the block.To improve reading efficiency, I'd like to return the list of datanodes in the order of its distance to the client machine. So I suggest that we make the open method to take an additional argument clientMachine which is in the format of hostname:port#.
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