belliottsmith commented on code in PR #2144:
URL: https://github.com/apache/cassandra/pull/2144#discussion_r1128783861


##########
src/java/org/apache/cassandra/service/accord/AccordStateCache.java:
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@@ -149,17 +145,12 @@ public NamedMap(String name)
         }
     }
 
-    public final Map<Object, Node<?, ?>> active = new HashMap<>();
     private final Map<Object, Node<?, ?>> cache = new HashMap<>();
-    private final Map<Object, WriteOnlyGroup<?, ?>> pendingWriteOnly = new 
HashMap<>();
-    private final Set<Instance<?, ?>> instances = new HashSet<>();
-
-    private final NamedMap<Object, Future<?>> loadFutures = new 
NamedMap<>("loadFutures");
-    private final NamedMap<Object, Future<?>> saveFutures = new 
NamedMap<>("saveFutures");
+    private final Set<Instance<?, ?, ?>> instances = new HashSet<>();
 
-    private final NamedMap<Object, Future<Data>> readFutures = new 
NamedMap<>("readFutures");
-    private final NamedMap<Object, Future<?>> writeFutures = new 
NamedMap<>("writeFutures");
+    private final NamedMap<Object, AsyncResult<Void>> saveResults = new 
NamedMap<>("saveResults");
 
+    private int linked = 0;

Review Comment:
   I'm happy to punt it as explicit technical debt, but don’t want to waive it 
away with a "prove it’s a problem" mentality. That shouldn’t be how we address 
concerns like this.
   
   I think we probably agree that we would prefer our design not to have this 
property? and that we’re mostly willing to accept it because we have bigger 
fish to fry. In which case it’s probably a worse investment of our time to hash 
out the relevant standard of proof than it would be to address the issue, 
should it come to it. 
   
   But I agree it's not an optimal use of our time right now.



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