hzluyang opened a new issue, #15794:
URL: https://github.com/apache/pulsar/issues/15794

   non-persistent的topic 的消息数据是在内存中的
   但是如果消费组消费能力弱,但是生产者生产大那么可能出现堆积大量数据在内存中的情况导致OOM的可能。
   
   在5月份的开发用户沟通会上确认了确实会有OOM的风险
   
   建议限制一下non-persistent topic的可以堆积消息的数量 避免这种场景下的OOM


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