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From Alieh Saeedi <aliehsae...@yahoo.com>
Subject diskStatus
Date Sun, 05 Feb 2012 11:21:44 GMT
1- Is there a way to check disk status (free disk space, used disk space, total disk space)
of a node?
2-Is there a way to generally tell Hadoop to write reducer output on a node which has enough
(more than 25% of the whole node's disk space) free disk space (without specifying a node)?
If I dont specify a directory for reducer output where will Hadoop check the destination node
disk space before writing on it? If there is no enough disk space on the reducer, Does it
save reducer's output on other nodes?


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