clarax commented on a change in pull request #3415:
URL: https://github.com/apache/hbase/pull/3415#discussion_r658207914
##########
File path:
hbase-balancer/src/main/java/org/apache/hadoop/hbase/master/balancer/DoubleArrayCost.java
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@@ -106,4 +88,32 @@ private static double getSum(double[] stats) {
}
return total;
}
+
+ /**
+ * Return the min skew of distribution
+ */
+ public static double getMinSkew(double total, double numServers) {
+ double mean = total / numServers;
+ // It's possible that there aren't enough regions to go around
+ double min;
+ if (numServers > total) {
Review comment:
This is the case when we have more nodes than regions, we will have
nodes without regions and it is balanced.
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