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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/08/15 06:37:21 UTC

[GitHub] [rocketmq] lizhanhui commented on issue #4824: Support consumequeue, indexfile multiple directories storage mode

lizhanhui commented on issue #4824:
URL: https://github.com/apache/rocketmq/issues/4824#issuecomment-1214671387

   @shengminw 
   In your RIP:
   > So the deletion should be executed when any of the disks reached the threshold (set by diskMaxUsedSpaceRatio)
   
   Is this a good idea? Attempting to delete expiring data is pretty expensive, which may compete IOPS with normal data persistence, causing unexpected latency spikes.
   
   Another issue: similar to https://github.com/apache/rocketmq/issues/4803 Watermarks measured in percent are inferior to those measured in kilobytes(megabytes) as Linux kernel does.  The reclamation of RocketMQ should follow the same way.


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