如何限制Netty用于客户端连接的线程 [英] How can I limit the threads netty uses for client connections

问题描述

有没有一种方法可以限制netty用于客户端连接的线程数(Netty是连接到远程服务器的客户端).我正在使用1个NioEventLoopGroup，它被传递到每个Bootstrap中.每个引导程序都获得相同的ChannelInitializer引用(我曾经为每个引导程序创建不同的初始化程序，但似乎可以很好地共享相同的引用).我已从Java应用程序连接到许多充当服务器的硬件设备.

Is there a way to limit how many threads netty uses for client connections (Netty is the client which connect to a remote server). I am using 1 NioEventLoopGroup which is passed into each Bootstrap. Each of those Bootstraps gets the same ChannelInitializer reference (I used to create different initializers for each Bootstrap, but it seems to work fine sharing the same reference). I am connected from my Java application to many hardware devices which act as the server.

我注意到，目前使用的线程数最多为16个(我在8核计算机上，根据我的阅读，Netty默认使用2倍的内核数).根据我在日志记录中看到的名称，它们被命名为nioEventLoopGroup-2-1至nioEventLoopGroup-2-16.我连接的第17台服务器将再次在nioEventLoopGroup-2-1上运行.

I have noticed that currently up to 16 threads are used (I am on an 8 core machine, from what I have read Netty uses 2 times the number of cores by default). They are named nioEventLoopGroup-2-1 to nioEventLoopGroup-2-16 from what I see in my logging. The 17th server I connect to will run on nioEventLoopGroup-2-1 again.

1)是否有方法可以更改使用的默认线程?

1) Is there a way to change this default of threads used?

2)知道为什么该组从2开始计数吗?

2) Any idea why the group starts to count from 2?

推荐答案

如果您将1传递给NioEventLoopGroup并在引导程序之间共享实例，则将仅使用一个客户端.

If you pass 1 to the NioEventLoopGroup and share the instance between the bootstraps only one client will be used.

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