GitHub user lei-xia opened a pull request:
https://github.com/apache/helix/pull/49
New topology-aware auto rebalance strategy and some minor fixes to the old
AutoRebalanceStrategy
This commit mainly contains a new topology-aware auto rebalance strategy
based on CRUSH algorithm. The detailed design doc is at:
https://cwiki.apache.org/confluence/display/HELIX/Helix+Topology-aware+Rebalance+Strategy
Commits:
1. A new crush-based topology-aware auto rebalance strategy.
2. Allow current AutoRebalancer to pick different rebalance strategy at
runtime based on new config option in IdealState.
3. Fix a bug in old AutoRebalanceStrategy which disabled instances are
still included in the mapping calculation.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/lei-xia/helix helix-0.6.x
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/helix/pull/49.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 #49
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commit fd566e0caf4225fda8209654c14516050f95502f
Author: Lei Xia <l...@linkedin.com>
Date: 2016-06-01T02:17:39Z
[HELIX-633] AutoRebalancer should ignore disabled instance and all
partitions on disabled instances should be dropped in FULL_AUTO rebalance mode
commit c728f92b85cdfa90a3b088751773340e133b67b4
Author: Lei Xia <l...@linkedin.com>
Date: 2016-06-07T21:42:43Z
[HELIX-634] Refactor AutoRebalancer to allow configuable placement strategy.
commit 5b2a813b0bbc6b3358e217657cc2da6b9d8a9d6e
Author: Lei Xia <l...@linkedin.com>
Date: 2016-06-16T19:06:34Z
[HELIX-568] Add new topology aware (rack-aware) rebalance strategy based on
CRUSH algorithm.
Design doc is available at:
https://cwiki.apache.org/confluence/display/HELIX/Helix+Topology-aware+Rebalance+Strategy
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