codelipenghui commented on code in PR #17318:
URL: https://github.com/apache/pulsar/pull/17318#discussion_r981184755
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pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBase.java:
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@@ -97,6 +98,9 @@
protected volatile Timeout batchReceiveTimeout = null;
protected final Lock reentrantLock = new ReentrantLock();
+ // Only work when subscription type is Failover or Exclusive
+ protected final Lock incomingQueueLock;
Review Comment:
The `enqueueMessageAndCheckBatchReceive` method is always executed by the
`internalPinnedExecutor` and the `redeliverUnacknowledgedMessages` method of
`MultiTopicsConsumerImpl` is also executed by the `internalPinnedExecutor`. Is
it possible to make sure the `redeliverUnacknowledgedMessages` method of the
`ConsumerImpl` so that we don't need to introduce the lock here?
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