Github user HeartSaVioR commented on the issue:
https://github.com/apache/storm/pull/2241
FYI: Regarding improving LoadAwareShuffleGrouping, I spent some days and
published my improvement on #2261. From my latest update, compared to current,
#2261 is about 4x faster with single-thread benchmark, and 2x faster with
two-threads benchmark.
I need to run same benchmarks against ShuffleGrouping but I guess #2261
should be close to current ShuffleGrouping, based on fact that chooseTasks()
now does the same thing which ShuffleGrouping is doing.
(ShuffleGrouping in current PR is optimized for single-thread and drops
thread-safety, so can't compare them directly.)
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