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  1. Hadoop Common
  2. HADOOP-1276

TaskTracker expiry interval is not configurable

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.13.0
    • Component/s: None
    • Labels:
      None
    • Environment:

      all

      Description

      The tasktracker expiry interval is hardcoded to 10 mins with the MRConstants.TASKTRACKER_EXPIRY_INTERVAL constant.

      For small clusters, running small jobs, this interval is too high.

      Making it configurable it would require:

      • Introducing a 'tasktracker.expiry.interval' property with default value of 10 mins.
      • Load the property in the JobTracker
      • Change the 5 usages of the constant by a property in the JobTracker
      • Remove the constant from MRConstants
      • add default value to the hadoop-default.xml file

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            • Assignee:
              acmurthy Arun C Murthy
              Reporter:
              tucu00 Alejandro Abdelnur
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              • Created:
                Updated:
                Resolved: