TT should remove bad local dirs from conf to prevent constant disk checking
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Key: MAPREDUCE-3011
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3011
Project: Hadoop Map/Reduce
Issue Type: Sub-task
Components: tasktracker
Affects Versions: 0.20.204.0
Reporter: Eli Collins
Fix For: 0.20.205.0
Per HADOOP-7551 the TT does not remove bad mapred.local.dirs from the conf so
after a single disk failure *every* call to get a local path for reading or
writing results in a disk check of *all* configured local dirs. After detecting
that a local dir is bad we should remove it from the conf so that we don't
repeatedly perform this expensive operation.
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