socket failed: EMFILE (Too many open files)

[WangIdea]

java.net.SocketException: socket failed: EMFILE (Too many open files)
at java.net.Socket.createImpl(Socket.java:492)
at java.net.Socket.connect(Socket.java:619)
at com.vilyever.socketclient.SocketClient$ConnectionThread.run(SocketClient.java:977)

项目在做压力测试 socket每次测试完成都会断开 下一次流程重新连接 出现了这个错误