Details
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Improvement
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Status: Resolved
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Minor
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Resolution: Fixed
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3.4.0
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Reviewed
Description
Currently, The valuee of DataNode#CONGESTION_RATIO is 1.5 and it is not configurable.
When the average load of a datanode in last one minute is higer than CONGESTION_RATIO * NUM_CORES, this datanode will be regard as CONGESTED.
In most real production envs, the default value 1.5 seems not appropriate. So ,we should change this value to be configurable.
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