taklwu commented on code in PR #7577:
URL: https://github.com/apache/hbase/pull/7577#discussion_r2653816723


##########
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/PeerProcedureHandlerImpl.java:
##########
@@ -108,6 +109,33 @@ public void disablePeer(String peerId) throws 
ReplicationException, IOException
     refreshPeerState(peerId);
   }
 
+  private boolean hasReplicationConfigChange(ReplicationPeerConfig oldConfig,
+    ReplicationPeerConfig newConfig) {
+    Map<String, String> oldReplicationConfigs = oldConfig.getConfiguration();
+    Map<String, String> newReplicationConfigs = newConfig.getConfiguration();
+
+    // Check if any replication.source.* keys have changed values
+    for (Map.Entry<String, String> entry : newReplicationConfigs.entrySet()) {
+      String key = entry.getKey();
+      if (key.startsWith("replication.source.")) {

Review Comment:
   do we need to handle the following keys? if not, then your change looks good 
to me
   
   hbase.replication.source.fs.conf.provider
   hbase.replication.source.service
   hbase.replication.source.maxthreads



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