HDFS-9788. Incompatible tag renumbering in HeartbeatResponseProto.

(cherry picked from commit aeb13ef2ab657a1c2f9d9ed5f80783f788c4953a)

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -1814,6 +1814,8 @@ Release 2.8.0 - UNRELEASED
     HDFS-9779 . TestReplicationPolicyWithNodeGroup NODE variable picks wrong rack value
     (Kuhu Shukla via umamahesh)
 
+    HDFS-9788. Incompatible tag renumbering in HeartbeatResponseProto. (wang)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/src/main/proto/DatanodeProtocol.proto

@@ -219,8 +219,8 @@ message HeartbeatResponseProto {
   repeated DatanodeCommandProto cmds = 1; // Returned commands can be null
   required NNHAStatusHeartbeatProto haStatus = 2;
   optional RollingUpgradeStatusProto rollingUpgradeStatus = 3;
-  optional uint64 fullBlockReportLeaseId = 4 [ default = 0 ];
-  optional RollingUpgradeStatusProto rollingUpgradeStatusV2 = 5;
+  optional RollingUpgradeStatusProto rollingUpgradeStatusV2 = 4;
+  optional uint64 fullBlockReportLeaseId = 5 [ default = 0 ];
 }
 
 /**