virajjasani commented on a change in pull request #2454:
URL: https://github.com/apache/hbase/pull/2454#discussion_r499443807
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/master/normalizer/SimpleRegionNormalizer.java
##########
@@ -371,7 +358,11 @@ private boolean skipForMerge(final RegionStates
regionStates, final RegionInfo r
final long nextSizeMb = getRegionSizeMB(next);
// always merge away empty regions when they present themselves.
if (currentSizeMb == 0 || nextSizeMb == 0 || currentSizeMb + nextSizeMb
< avgRegionSizeMb) {
- plans.add(new MergeNormalizationPlan(current, next));
+ final MergeNormalizationPlan plan = new
MergeNormalizationPlan.Builder()
+ .addTarget(current, currentSizeMb)
+ .addTarget(next, nextSizeMb)
Review comment:
> Regardless, maybe we want to validate `list_size() % 2 == 0` in
`MergeNormalizationPlan` constructor which initializes `normalizationTargets`?
I still think that this validation is better suitable for this current PR
because we are introducing at least the flexibility to submit variable no of
target regions for merging.
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