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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2022/10/11 12:55:04 UTC
[GitHub] [incubator-brpc] xuqinhaow opened a new issue, #1953: cmurmur负载均衡算法流量不均匀
xuqinhaow opened a new issue, #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953
发现在用的brpc，使用的cmurmur一致性算法，每台实例上的流量不均匀，差了一倍，导致线上负载有问题，问下怎么解决
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[GitHub] [incubator-brpc] xuqinhaow commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
xuqinhaow commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281757567
感觉不是，跑了下ip的一致性hash，算了下node的range值，抖动幅度挺大的，看着和线上流量基本match
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[GitHub] [incubator-brpc] wwbmmm commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
wwbmmm commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1278684086
是不是传入的request code本身不均匀
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[GitHub] [incubator-brpc] wwbmmm commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
wwbmmm commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281850793
>
> 这是ip node节点之间的差值
这个图的横纵坐标分别是什么含义？
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[GitHub] [incubator-brpc] xuqinhaow commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
xuqinhaow commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281865038
横坐标是node节点：1，2，3，4...,纵坐标是相邻节点hash值的差值，可以理解是每个节点负责的区间大小
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[GitHub] [incubator-brpc] wwbmmm commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
wwbmmm commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281901638
> 横坐标是node节点：1，2，3，4...,纵坐标是相邻节点hash值的差值，可以理解是每个节点负责的区间大小
了解。
你应该这样统计：将hash环上每一个区间，累计到所属的实例上。如果每个实例的累计结果差不多，就说明是均匀的。
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[GitHub] [incubator-brpc] xuqinhaow commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
xuqinhaow commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281757655
<img width="1488" alt="image" src="https://user-images.githubusercontent.com/13250405/196327173-a679fa0d-ecce-4732-bc5c-c65538b8994e.png">
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[GitHub] [incubator-brpc] xuqinhaow commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
xuqinhaow commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281923991
是这样的，从实际的使用看不太均匀的，模拟的还没做
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[GitHub] [incubator-brpc] xuqinhaow commented on issue #1953: cmurmur负载均衡算法流量不均匀
Posted by GitBox <gi...@apache.org>.
xuqinhaow commented on issue #1953:
URL: https://github.com/apache/incubator-brpc/issues/1953#issuecomment-1281757965
> <img alt="image" width="1488" src="https://user-images.githubusercontent.com/13250405/196327173-a679fa0d-ecce-4732-bc5c-c65538b8994e.png">
这是ip node节点之间的差值
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