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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2022/11/20 12:35:16 UTC
[GitHub] [incubator-brpc] chenBright opened a new issue, #2006: baidu协议的rpc write response之后，socket被set failed了，brpc能保证数据发到对端吗？
chenBright opened a new issue, #2006:
URL: https://github.com/apache/incubator-brpc/issues/2006
了解了一下协议栈的[close逻辑](https://github.com/torvalds/linux/blob/master/net/ipv4/tcp.c#L2904)：
1. 如果接收缓冲区没有数据，则会将fin插入到发送缓冲区最后面，先将数据发送完，再发fin，进行四次挥手。
2. 如果接收缓冲区还有数据，则直接发送rst，不会进行四次挥手。
对于baidu协议这种支持多发多收的协议，服务端同一连接上的rpc数据都写到内核之后，socket被set failed，很快就close socket fd。如果此时客户端还在不断发请求，服务端的socket很大概率是处于情况2的状态，那么brpc有机制能保证未发送完成的数据发出去之后再进行四次挥手吗？
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Re: [I] baidu协议的rpc write response之后，socket被set failed了，brpc能保证数据发到对端吗？ (brpc)
Posted by "chenBright (via GitHub)" <gi...@apache.org>.
chenBright closed issue #2006: baidu协议的rpc write response之后，socket被set failed了，brpc能保证数据发到对端吗？
URL: https://github.com/apache/brpc/issues/2006
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