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Type:
Bug
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 0.20.203.0, 1.0.3
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Fix Version/s: 1.0.4
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Component/s: performance, tasktracker
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Labels:None
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Target Version/s:
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Hadoop Flags:Reviewed
There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.