Shuffle server list for MultiReplicaClientReadHandler to improve read…

… serve performance
maobaolong · Aug 19, 2024 · d88566c · d88566c
1 parent 13fc984
commit d88566c
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/.../src/main/java/org/apache/uniffle/storage/handler/impl/MultiReplicaClientReadHandler.java b/.../src/main/java/org/apache/uniffle/storage/handler/impl/MultiReplicaClientReadHandler.java
@@ -17,6 +17,8 @@
 
 package org.apache.uniffle.storage.handler.impl;
 
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 import org.roaringbitmap.longlong.Roaring64NavigableMap;
@@ -49,7 +51,9 @@ public MultiReplicaClientReadHandler(
     this.handlers = handlers;
     this.blockIdBitmap = blockIdBitmap;
     this.processedBlockIds = processedBlockIds;
-    this.shuffleServerInfos = shuffleServerInfos;
+    List<ShuffleServerInfo> shuffledServerList = new ArrayList<>(shuffleServerInfos);
+    Collections.shuffle(shuffledServerList);
+    this.shuffleServerInfos = shuffledServerList;
   }
 
   @Override