RivenSun2 commented on pull request #11340:
URL: https://github.com/apache/kafka/pull/11340#issuecomment-1001976302
@showuon
Sorry, I analyzed it carefully, because in the
`ConsumerCoordinator#close(timer)` method, we changed to call
`maybeAutoCommitOffsetsAsync()`, so the following code block will be executed
```
while (pendingAsyncCommits.get()> 0 && timer.notExpired()) {
ensureCoordinatorReady(timer);
client.poll(timer);
invokeCompletedOffsetCommitCallbacks();
}
```
But in some testCases of KafkaConsumerTest, Time calls the `new MockTime( )`
method, which causes `autoTickMs=0`, which in turn causes `Timer#update()` to
never update currentTimeMs, which leads to blocking in the
`ConsumerNetworkClient#poll(future, timer)` method.
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