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tanxinyu pushed a commit to branch rel/1.2
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/rel/1.2 by this push:
     new 5af83fac1b5 Optimize leader change event (#10797) (#10804)
5af83fac1b5 is described below

commit 5af83fac1b5db9b8bb4643580b7fd1fcb3988ee3
Author: Potato <[email protected]>
AuthorDate: Mon Aug 7 17:04:03 2023 +0800

    Optimize leader change event (#10797) (#10804)
    
    Co-authored-by: YongzaoDan <[email protected]>
---
 .../iotdb/confignode/manager/load/service/StatisticsService.java      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git 
a/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/service/StatisticsService.java
 
b/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/service/StatisticsService.java
index 01f8fab8934..feb01ee04ef 100644
--- 
a/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/service/StatisticsService.java
+++ 
b/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/service/StatisticsService.java
@@ -147,7 +147,9 @@ public class StatisticsService implements 
IClusterStatusSubscriber {
       // Map<RegionGroupId, Pair<old priority, new priority>>
       Map<TConsensusGroupId, Pair<TRegionReplicaSet, TRegionReplicaSet>>
           differentRegionPriorityMap = routeBalancer.balanceRegionPriority();
-      eventBus.post(new RouteChangeEvent(differentRegionLeaderMap, 
differentRegionPriorityMap));
+      if (!differentRegionLeaderMap.isEmpty() || 
!differentRegionPriorityMap.isEmpty()) {
+        eventBus.post(new RouteChangeEvent(differentRegionLeaderMap, 
differentRegionPriorityMap));
+      }
     }
 
     if (isNeedBroadcast) {

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