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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2021/11/08 06:28:06 UTC

[GitHub] [rocketmq] fsckzy commented on issue #3468: Is this a Dledger bug? Only the master is working

fsckzy commented on issue #3468:
URL: https://github.com/apache/rocketmq/issues/3468#issuecomment-962849559


   > 这里没有问题。默认情况下禁用从从设备读取。您可以通过传递 slaveReadEnable=true 来启用从站读取。 默认情况下，可以从slave读取内存后面40%的消息，你可以调整accessMessageInMemoryMaxRatio来调整比例。
   
   Thank you for your answer, I have a question:
   Why can't all 3 devices be read by default? If only the master provides services by default, will it cause a lot of pressure?


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