DFS node choice doesn't take available space into account effectively
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Key: HADOOP-26
URL: http://issues.apache.org/jira/browse/HADOOP-26
Project: Hadoop
Type: Bug
Components: dfs
Reporter: Mike Cafarella
Assigned to: Mike Cafarella
We used to have node-allocation be sensitive to available disk space. It
turned out that
this was a little accident-prone and hard to debug on then-available machines,
so I removed it.
DFS is mature enough now that this needs to come back and work properly. A
node with less
than X bytes should never accept a new block for allocation.
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