Comments (2)
vector20240801
commented on July 24, 2024
envoy的hot restart不是基于SO_REUSEPORT实现的吧
他是直接把父进程监听socket fd取出来了，然后就直接操作这fd实现的吧？
通过调用这个函数实现的 HotRestartImpl::duplicateParentListenSocket
核心逻辑是这个函数HotRestartingParent::Internal::getListenSocketsForChild
我这么理解对不？
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panzhongxian
commented on July 24, 2024
@taojiaenx 你的理解是对的，我这里只是大概介绍一下SO_REUSEPORT，作者只是提到并且介绍了没使用它的原因：
In the current implementation Envoy does not make use of the SO_REUSEPORT socket option. This is primarily historical since that socket option is only available on relatively new kernels
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