codelipenghui commented on a change in pull request #8207:
URL: https://github.com/apache/pulsar/pull/8207#discussion_r500851629
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File path:
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBase.java
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@@ -677,19 +677,16 @@ protected void notifyPendingBatchReceivedCallBack() {
if (opBatchReceive == null || opBatchReceive.future == null) {
return;
}
- notifyPendingBatchReceivedCallBack(opBatchReceive);
+ synchronized (incomingMessages) {
Review comment:
Looks the 'synchronized' block is to protect the
`notifyPendingBatchReceivedCallBack(opBatchReceive)` because of the here
https://github.com/apache/pulsar/pull/8207/files/ac48262d4fa431de0364391cc585c9694fefd581..675b28d1755f8968ec51032f80543023d523465d#diff-bbd4739897f6a38e6b966ec9f8795ca5L686
is not a thread-safe operation.
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