wwbmmm commented on issue #908: 目前RPC重试策略只能支持跨机器重试，希望支持跨机器组重转 URL: https://github.com/apache/incubator-brpc/issues/908#issuecomment-526516712 > [SelectiveChannel](https://github.com/apache/incubator-brpc/blob/master/docs/cn/combo_channel.md#selectivechannel) 能满足你的场景么 和SelectiveChannel不完全一样，这里负载均衡还是希望在所有实例间做负载均衡（可能是RR、WRR、LA等），但是SelectiveChannel把负载均衡变成了两层，效果就不一样了，特别是不同组的实例数量不同的情况。而且这个会拆出很多NS，这个组的数量可能会动态变化，这些情况处理起来比较复杂。
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