belliottsmith commented on code in PR #2144:
URL: https://github.com/apache/cassandra/pull/2144#discussion_r1128408895
##########
src/java/org/apache/cassandra/service/accord/AccordStateCache.java:
##########
@@ -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 think the tail issue is resolved if we have a dummy head pointer as
proposed elsewhere that is both the head and tail?
Regarding bugs, we could periodically look at the full queue and report if
there’s an element we should have found via the other queue?
the nice thing about the extra linked-list is that it’s very cheap to
maintain, I’d prefer not to keep another map (we already have quite a few). But
let me ponder your point about delays to eviction from the combined save
process, that is suboptimal.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
