FAQ
Clean up the JobTracker code
----------------------------

Key: HADOOP-3888
URL: https://issues.apache.org/jira/browse/HADOOP-3888
Project: Hadoop Core
Issue Type: Improvement
Components: mapred
Affects Versions: 0.19.0
Reporter: Steve Loughran
Priority: Minor


My IDE flags a lot of trouble in the JobTracker code, but I dont want to mix those changes with any lifecycle changes. After doing that, then I'd like to clean up the code in JobTracker

-move to generic types and foreach loops over Vector and iterators.
-give all threads the correct type
-stop using package scoped static variables to pass instance-data around specifically
TASKTRACKER_EXPIRY_INTERVAL
RETIRE_JOB_CHECK_INTERVAL
RETIRE_JOB_INTERVAL
-fix up all the javadoc warnings
-remove the needless this. references on lots of local variables
-replace the log + stringifyException with log(text,exception).

Its only an hour or so of work, and would improve the code maintainability, but it would make merging existing code harder.

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groupcommon-dev @
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postedAug 1, '08 at 11:21a
activeAug 4, '08 at 3:32a
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Vivek Ratan (JIRA): 2 posts

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