Configuration of directory lists should trim whitespace
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Key: MAPREDUCE-1441
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1441
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: jobtracker, tasktracker
Affects Versions: 0.21.0, 0.22.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
HADOOP-2366 added a getTrimmedStringCollection method to Configuration.
MapReduce should use this for all the cases where it configures a list of
directories. This solves issues that come up when people set mapred.local.dir
to "/data/1, /data/2, /data/3" (note the spaces). This is a very common mistake
that we should guard against.
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