[ http://issues.apache.org/jira/browse/HADOOP-296?page=all ]
Johan Oskarson updated HADOOP-296:
----------------------------------
Attachment: minspacev5.patch
Terribly sorry guys, this is a corrected version, disregard the previous ones.
How hard can it be to do a five line patch? :)
I'm a bit stressed out by other things, probably shouldn't send patches right
now :)
> Do not assign blocks to a datanode with < x mb free
> ---------------------------------------------------
>
> Key: HADOOP-296
> URL: http://issues.apache.org/jira/browse/HADOOP-296
> Project: Hadoop
> Type: New Feature
> Components: dfs
> Versions: 0.3.2
> Reporter: Johan Oskarson
> Attachments: minspace.patch, minspacev2.patch, minspacev3.patch,
> minspacev3.patch, minspacev4.patch, minspacev5.patch
>
> We're running a smallish cluster with very different machines, some with only
> 60 gb harddrives
> This creates a problem when inserting files into the dfs, these machines run
> out of space quickly and then they cannot run any map reduce operations
> A solution would be to not assign any new blocks once the space is below a
> certain user configurable threshold
> This free space could then be used by the map reduce operations instead (if
> that's on the same disk)
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