dcapwell commented on code in PR #3877:
URL: https://github.com/apache/cassandra/pull/3877#discussion_r1945325629


##########
test/distributed/org/apache/cassandra/fuzz/topology/AccordTopologyMixupTest.java:
##########
@@ -240,13 +245,39 @@ public String createSchema()
 
     private static class AccordState extends State<Spec>
     {
+        private final Int2ObjectHashMap<String> instanceEpochState = new 
Int2ObjectHashMap<>();
         private final ListenerHolder listener;
 
         public AccordState(RandomSource rs)
         {
             super(rs, AccordTopologyMixupTest::createSchemaSpec, 
AccordTopologyMixupTest::cqlOperations);
 
             this.listener = new ListenerHolder(this);
+            this.preActions.add(this::populateEpochState);
+        }
+
+        private void populateEpochState()
+        {
+            String cql = "SELECT * FROM " + VIRTUAL_VIEWS + ".accord_epoch";
+            for (var inst : cluster)
+            {
+                int num = inst.config().num();
+                if (inst.isShutdown())
+                {
+                    instanceEpochState.put(num, "unknown");
+                    continue;
+                }
+                try
+                {
+                    SimpleQueryResult qr = Retry.retryWithBackoffBlocking(5, 
() -> cluster.get(num).executeInternalWithResult(cql));
+                    instanceEpochState.put(num, 
TableBuilder.toStringPiped(qr.names(), QueryResults.stringify(qr)));

Review Comment:
   this produces the following format
   
   ```
   epoch | ready | ready_coordinate | ready_data | ready_metadata | ready_reads
   4     | true  | success          | success    | success        | success    
   5     | true  | success          | success    | success        | success    
   6     | true  | success          | success    | success        | success    
   7     | true  | success          | success    | success        | success    
   8     | true  | success          | success    | success        | success    
   9     | true  | success          | success    | success        | success    
   10    | true  | success          | success    | success        | success    
   11    | true  | success          | success    | success        | success    
   12    | true  | success          | success    | success        | success    
   13    | true  | success          | success    | success        | success    
   14    | true  | success          | success    | success        | success
   ```



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