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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2657 TaskTracker should handle disk failures
  3. MAPREDUCE-3011

TT should remove bad local dirs from conf to prevent constant disk checking

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Not A Problem
    • Affects Version/s: 0.20.204.0
    • Fix Version/s: None
    • Component/s: tasktracker
    • Labels:
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      Description

      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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          relates to

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-3077 re-enable faulty TaskTracker storage without restarting TT, when appropriate

          • Major - Major loss of function.
          • Open

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              • Assignee:
                eli Eli Collins
                Reporter:
                eli Eli Collins
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                • Created:
                  Updated:
                  Resolved: