duhenglucky commented on issue #1400: Disk space detection is blocked when it cost too much time to delete files URL: https://github.com/apache/rocketmq/issues/1400#issuecomment-522917577 @qqeasonchen 增加单独的定时任务可以解决这个问题；另外，这里面有三个参数可以改一下来避免这个问题，diskMaxUsedSpaceRatio，diskSpaceCleanForciblyRatio这两个参数跟diskSpaceWarningLevelRatio比较接近的时候，会出现上述问题，也可以修改一下这三个参数，保证留有比较多的空间来及时删除文件。
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