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关于consumer 安全消费的问题 #117

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mylovemaliang opened this issue Apr 10, 2015 · 1 comment
Open

关于consumer 安全消费的问题 #117

mylovemaliang opened this issue Apr 10, 2015 · 1 comment

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@mylovemaliang
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订阅的时候 maxsize 设置过小，会影响安全消费吗？ maxsize 和 fetchRunnerCount 怎么设置合理？消费的时候要注意些什么？
@wq163
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wq163 commented Oct 20, 2015

如果有过大的单条消息则会影响。有时候还要根据消费能力作适当调整，例如消费很慢并且未使用消费线程池的情况下maxsize不宜设置过大，否则可能引起负载均衡失败现象（因为要等一个节点把拉倒本地的数据消费完才释放分区，而另一个节点尝试多次不成功就放弃了）

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@wq163 @mylovemaliang