belliottsmith commented on code in PR #2144:
URL: https://github.com/apache/cassandra/pull/2144#discussion_r1127632665
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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:
Something like this? (with the AsyncChain issue addressed too):
https://github.com/belliottsmith/cassandra/tree/immutable-state-suggest
DISCLAIMER: untested and not thought about super carefully, just showing the
general shape of what I think would work for a fairly simple change that would
address this issue without much changing the efficiency otherwise.
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