GitHub user revans2 opened a pull request:
https://github.com/apache/storm/pull/2647
STORM-3040: Improve scheduler performance
There are a lot of different scheduler improvements. Mostly these are
either caching, storing data in multiple ways so we can look it up quickly, and
finally lazily sorting nodes in a rack only when it is needed, instead of all
ahead of time.
I also added in performance tests. They currently pass on travis, but I
would like to hear from others on if this solution looks good or if there is a
better way for us to do performance testing.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/revans2/incubator-storm STORM-3040
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/2647.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2647
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commit 8d3e5cf0e6f7f90d3007159d30c3456bd9749b1f
Author: Robert (Bobby) Evans <evans@...>
Date: 2018-04-24T20:19:32Z
STORM-3040: Improve scheduler performance
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