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coordinator slight optimze load rule to skip drop if numToDrop is 0 (#5928)

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Clint Wylie 2018-07-03 17:56:11 -07:00 committed by Gian Merlino
parent d5a3871864
commit 0a472d3fa0
1 changed files with 5 additions and 1 deletions
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server/src/main/java/io/druid/server/coordinator/rules/LoadRule.java
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@ -322,7 +322,11 @@ public abstract class LoadRule implements Rule
} else { } else {
final int currentReplicantsInTier = entry.getIntValue(); final int currentReplicantsInTier = entry.getIntValue();
final int numToDrop = currentReplicantsInTier - targetReplicants.getOrDefault(tier, 0); final int numToDrop = currentReplicantsInTier - targetReplicants.getOrDefault(tier, 0);
if (numToDrop > 0) {
numDropped = dropForTier(numToDrop, holders, segment, params.getBalancerStrategy()); numDropped = dropForTier(numToDrop, holders, segment, params.getBalancerStrategy());
} else {
numDropped = 0;
}
} }
stats.addToTieredStat(DROPPED_COUNT, tier, numDropped); stats.addToTieredStat(DROPPED_COUNT, tier, numDropped);