gianm commented on a change in pull request #7088: Improve parallelism of
zookeeper based segment change processing
URL: https://github.com/apache/incubator-druid/pull/7088#discussion_r277404646
##########
File path:
server/src/main/java/org/apache/druid/server/coordinator/CuratorLoadQueuePeon.java
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@@ -406,11 +409,11 @@ public void addCallback(LoadPeonCallback newCallback)
}
}
- LoadPeonCallback[] getCallbacks()
+ List<LoadPeonCallback> snapshotCallbacks()
{
synchronized (callbacks) {
// Return a copy so that callers get a consistent view
Review comment:
I think @samarthjain's comment is fine. It's clear from context and from the
comment that a copy of the List is being made so callers can iterate/read it
without running into issues due to concurrent modification of that List by
another thread. It is implied that the concurrency model of the class allows /
expects this sort of usage.
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