jiajunwang commented on a change in pull request #632: Asynchronously
calculating the Baseline
URL: https://github.com/apache/helix/pull/632#discussion_r351946649
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File path: helix-core/src/main/java/org/apache/helix/model/ClusterConfig.java
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@@ -94,7 +94,12 @@
// The preference of the rebalance result.
// EVENNESS - Evenness of the resource utilization, partition, and top
state distribution.
// LESS_MOVEMENT - the tendency of keeping the current assignment instead
of moving the partition for optimal assignment.
- REBALANCE_PREFERENCE
+ REBALANCE_PREFERENCE,
+ // Specify if the WAGED rebalancer should asynchronously calculating the
global rebalance result.
+ // Note that asynchronously calculating will reduce the rebalance delay
but may cause more
Review comment:
I thought it is clear enough. But if you say so, let me add one line.
"Asynchronous baseline calculation means the partial rebalance is done based
on an older baseline. So the result would be intermediate and could be changed
again later."
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