apache#2104 Fix ping-pong on load balancing

seoeun25 · May 21, 2019 · 77a848e · 77a848e
1 parent ced1fe2
commit 77a848e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/server/src/main/java/io/druid/server/coordinator/SimpleBalancerStrategy.java b/server/src/main/java/io/druid/server/coordinator/SimpleBalancerStrategy.java
@@ -92,7 +92,7 @@ public List<Pair<BalancerSegmentHolder, ImmutableDruidServer>> select(
 
       final int numSegments = allSegments.size();
       final int groupPerServer = Math.max(1, numSegments / serverCount / 12);
-      final int tolerance = groupPerServer / 6;
+      final int tolerance = Math.max(1, groupPerServer / 6);
 
       final List<Integer> deficit = Lists.newArrayList();
       final List<Integer> excessive = Lists.newArrayList();