busbey commented on a change in pull request #1511: HBASE-24139 : Balancer
should avoid leaving idle region servers
URL: https://github.com/apache/hbase/pull/1511#discussion_r409072338
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
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@@ -310,6 +310,18 @@ protected synchronized boolean
areSomeRegionReplicasColocated(Cluster c) {
return false;
}
+ protected final synchronized boolean idleRegionExist(Cluster c){
+ boolean isServerExistsWithMoreRegions = false;
+ boolean isServerExistsWithZeroRegions = false;
+ for (int[] serverList: c.regionsPerServer){
+ if (serverList.length > 1)
Review comment:
please use `{}` around the body of if blocks.
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