DonalEvans commented on a change in pull request #6018:
URL: https://github.com/apache/geode/pull/6018#discussion_r573333422



##########
File path: 
geode-core/src/main/java/org/apache/geode/internal/cache/tx/RemoteOperationMessage.java
##########
@@ -169,14 +170,24 @@ public boolean checkDSClosing(ClusterDistributionManager 
dm) {
    */
   @Override
   public void process(final ClusterDistributionManager dm) {
+    InternalCache cache = getCache(dm);
+    if (cache == null) {
+      String message = getCacheClosedMessage(dm);
+      ReplyException replyException = new ReplyException(new 
CacheClosedException(message));
+      sendReply(getSender(), this.processorId, dm, replyException, null, 0);
+      return;
+    }
+    dm.getExecutors().getWaitingThreadPool().execute(() -> 
doRemoteOperation(dm, cache));
+  }
+
+  void doRemoteOperation(ClusterDistributionManager dm, InternalCache cache) {
     Throwable thr = null;
     boolean sendReply = true;
     LocalRegion r = null;
     long startTime = 0;
     try {
-      InternalCache cache = getCache(dm);
       if (checkCacheClosing(cache) || checkDSClosing(dm)) {
-        String message = "Remote cache is closed: " + dm.getId();
+        String message = getCacheClosedMessage(dm);
         if (cache == null) {

Review comment:
       Agreed, so it's good to keep the `thr = 
cache.getCacheClosedException(message);` code, but it should be fine to remove 
the `thr = new CacheClosedException(message);` part and simplify this block a 
little.




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