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https://issues.apache.org/jira/browse/STORM-2678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Joseph Evans resolved STORM-2678.
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Resolution: Fixed
Fix Version/s: 2.0.0
Thanks [~kabhwan],
I merged this into master.
> Improve performance of LoadAwareShuffleGrouping
> ------------------------------------------------
>
> Key: STORM-2678
> URL: https://issues.apache.org/jira/browse/STORM-2678
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-client
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
> Fix For: 2.0.0
>
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> While reviewing STORM-2306, I found a room to improve
> LoadAwareShuffleGrouping, basically taking similar approach with
> ShuffleGrouping.
> The idea is constructing virtual ring (array) with proper length which tasks
> are randomly distributed to the ring respecting their loads, and just do
> sequential access like we do in ShuffleGrouping. Maybe slower to reflect load
> information due to construct virtual ring but no need to call randInt and
> additional loop for each tuple emission.
> We may also want to reduce call of System.currentTimeMillis(), and if we get
> rid of that, it should be better.
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