ymwneu opened a new issue #604: NettyRemotingAbstract#invokeAsyncImpl will not release semaphore if invoke timeout. URL: https://github.com/apache/rocketmq/issues/604 **BUG REPORT** 1. Please describe the issue you observed: - What did you do (The steps to reproduce)?  If NettyRemotingAbstract#invokeAsyncImpl invoke timeout, the semaphoreAsync will not be released. In extreme case, it will occupy all semaphore and cause all asynchronous request send failed. - What did you expect to see? Semaphore be released if timeout. - What did you see instead? Semaphore not be released, if timeout. 2. Please tell us about your environment: From RocketMQ 4.3.0 to current version. 3. Other information (e.g. detailed explanation, logs, related issues, suggestions how to fix, etc):
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