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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2019/03/07 05:39:58 UTC

[GitHub] [rocketmq] hdchen commented on issue #697: Unbefitting buffer is used when transient store poll is enabled.

hdchen commented on issue #697: Unbefitting buffer is used  when transient store poll is enabled.
URL: https://github.com/apache/rocketmq/issues/697#issuecomment-470392682
 
 
   transientStorePoolEable 只能影响在异步刷盘模式下的putMessage的过程，而selectMappedBuffer是读取消息，读消息仍然会直接从Pagecache读取消息。和transientStorePoolEable是否开启没有关系的哈。通过开启transientStorePoolEable，就可以实现写消息和读消息的内存级的读写分离。

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