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Posted to commits@rocketmq.apache.org by "RockteMQ-AI (via GitHub)" <gi...@apache.org> on 2026/09/01 01:07:35 UTC

Re: [I] 每个RocketMQMessageListener会创建2 * CPU核数的线程 [rocketmq-spring]

RockteMQ-AI commented on issue #762:
URL: https://github.com/apache/rocketmq-spring/issues/762#issuecomment-5486997759

   **Issue Evaluation**
   
   Category: `bug` | Status: **Confirmed**
   
   Each `RocketMQMessageListener` creates a `ClientImpl` with 2×CPU-core thread pools. With N listeners on a 12-core machine, this creates 24N threads — clearly excessive.
   
   **Root Cause:** No thread pool sharing between listener instances; each creates independent `ClientImpl`.
   **Impact:** Resource exhaustion with many listeners. On a 12-core machine with 30 listeners = ~720 threads.
   **Severity:** High
   
   This should be addressed by sharing a common `ClientImpl` or thread pool across listeners.
   
   ---
   *Automated evaluation by RockteMQ-AI*


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