Details
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Improvement
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Status: Resolved
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Major
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Resolution: Fixed
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None
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None
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None
Description
Currently the JobTracker serves the JobHistory to end-users off files local-disk/hdfs. While running very large clusters with a large user-base might result in lots of traffic for job-history which needlessly taxes the JobTracker. The proposal is to have an optional daemon which handles serving of job-history requests.
Attachments
Attachments
Issue Links
- is depended upon by
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MAPREDUCE-1941 Need a servlet in JobTracker to stream contents of the job history file
- Resolved
- is part of
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MAPREDUCE-331 Make jobtracker resilient to memory issues
- Resolved
- relates to
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MAPREDUCE-177 Hadoop performance degrades significantly as more and more jobs complete
- Resolved