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Posted to mapreduce-dev@hadoop.apache.org by "Rajesh Putta (JIRA)" <ji...@apache.org> on 2011/08/01 10:57:09 UTC

[jira] [Created] (MAPREDUCE-2759) TaskTrackerAction should follow Open Closed Principle

TaskTrackerAction should follow Open Closed Principle
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                 Key: MAPREDUCE-2759
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2759
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: tasktracker
    Affects Versions: 0.23.0
         Environment: NA
            Reporter: Rajesh Putta
            Priority: Minor


In the class TaskTrackerAction  there are fixed actions or directions specified from the Job Tracker to the Task Tracker.So if in the future if some more actions are specified from the Job Tracker to Task Tracker,Current implementation is breaking Open Closed Principle(Open for extension,closed for modification).As the number of actions increases in the future, the code need to be modified to incorporate the actions.

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