java ChannelOption.SO_BACKLOG 有什么作用？
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What does ChannelOption.SO_BACKLOG do?
提问by jestro
.option(ChannelOption.SO_BACKLOG, 100)
is shown in the Netty 4 upgrade doc. Can you explain what it does?
显示在 Netty 4 升级文档中。你能解释一下它的作用吗？
Thanks!
谢谢！
回答by miku
It's a passed through socket option determining the number of connections queued.
这是一个通过套接字选项确定排队的连接数。
The maximum queue length for incoming connection indications (a request to connect) is set to the backlog parameter. If a connection indication arrives when the queue is full, the connection is refused.
传入连接指示（连接请求）的最大队列长度设置为 backlog 参数。如果队列已满时出现连接指示，则拒绝连接。
- More on netty channels: http://seeallhearall.blogspot.de/2012/06/netty-tutorial-part-15-on-channel.html
- 更多关于网络频道：http://seeallhearall.blogspot.de/2012/06/netty-tutorial-part-15-on-channel.html
