gateway 报错，系统崩溃

一、该问题的重现步骤是什么？

2021-01-20 15:53:18.528  WARN [open-platform-gateway,,,] 1 --- [or-http-epoll-1] io.netty.channel.DefaultChannelPipeline  : An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

io.netty.channel.unix.Errors$NativeIoException: accept(..) failed: Too many open files

2021-01-20 15:53:19.528  WARN [open-platform-gateway,,,] 1 --- [or-http-epoll-1] io.netty.channel.DefaultChannelPipeline  : An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

io.netty.channel.unix.Errors$NativeIoException: accept(..) failed: Too many open files

2021-01-20 15:53:20.528  WARN [open-platform-gateway,,,] 1 --- [or-http-epoll-1] io.netty.channel.DefaultChannelPipeline  : An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

io.netty.channel.unix.Errors$NativeIoException: accept(..) failed: Too many open files

2021-01-20 15:53:21.528  WARN [open-platform-gateway,,,] 1 --- [or-http-epoll-1] io.netty.channel.DefaultChannelPipeline  : An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.

io.netty.channel.unix.Errors$NativeIoException: accept(..) failed: Too many open files

二、你期待的结果是什么？实际看到的又是什么？

三、你正在使用的是什么产品，什么版本？在什么操作系统上？

      2.7.1   centos7

四、请提供详细的错误堆栈信息，这很重要。

五、若有更多详细信息，请在下面提供。