xinglin commented on code in PR #6804:
URL: https://github.com/apache/hadoop/pull/6804#discussion_r1594406970


##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/PoolAlignmentContext.java:
##########
@@ -64,7 +64,11 @@ public void 
updateResponseState(RpcHeaderProtos.RpcResponseHeaderProto.Builder h
    */
   @Override
   public void receiveResponseState(RpcHeaderProtos.RpcResponseHeaderProto 
header) {
-    sharedGlobalStateId.accumulate(header.getStateId());
+    if (header.getStateId() == 0 && sharedGlobalStateId.get() > 0) {

Review Comment:
   I assume stateId is an integer and protobuf will return 0 for an integer if 
it is not set?



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