freesky100 commented on issue #348: [TIMEOUT_CLEAN_QUEUE]broker busy URL: https://github.com/apache/rocketmq/issues/348#issuecomment-499413360 这个问题主要关注IO和内存。iostat、和store.log中的[NOTIFY]日志，查看内存耗时。io可以使用deadline。最主要还是机器性能，之前由于虚拟问题，io、内存影响特别大。
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