ReduceTask logs show negative values
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Key: HADOOP-4867
URL: https://issues.apache.org/jira/browse/HADOOP-4867
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.20.0
Reporter: Amar Kamat
Priority: Minor
Fix For: 0.20.0
While running some tests I can see negative values in reducers log. Something
like
{noformat}
localhost Will be considered after: -2 seconds
{noformat}
Looking at the code it looks like this happens when a node which was
temporarily down comes back (i.e becomes available). In such a case the node is
still in the penalty box and also in the unique hosts structure.
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