linux java，我的线程无一例外地终止了，为什么？

2 月，2 周 Questions & Answers 129

我有个问题，我的线程无一例外地终止了

我有一个接受socket的线程（nio，但是阻塞模式）。如果socket以较慢的速度接收请求，那么这种方法很有效，但是当一次接收到大量请求时，线程就会停止

我在linux中更改了一些选项，可能是为了这个

我的部分代码：

while(!Thread.interrupted() && !serverSocketChannel.socket().isClosed()){
        try
        {
            SocketChannel socketChannel = serverSocketChannel.accept();

            while (!socketChannel.finishConnect() && check < 50) {
                try {
                    Thread.sleep(20);
                }
                catch (InterruptedException ignored) {}
                check += 1;
            }
            check = 0;

            if(!socketChannel.finishConnect()){
                socketChannel.close();
                continue;
            }

            NioSocket socket = new NioSocket(server, socketChannel);

            if(acceptedSocketQueue.offer(socket))
                server.addSocket(socket);
            else
                socket.forceClose();
        }
        catch(Throwable e){
            Logger.log(SocketAccepter.class, e,"SocketAccepter, on accepting.");
        }
    }

Logger.log(SocketAccepter.class,"SocketAccepter ### interrupted.");
// I do not get here

更改选项：

echo fs.file-max=500000 >> /etc/sysctl.conf
echo fs.nr_open=500000 >> /etc/sysctl.conf
echo fs.aio-max-nr=300000 >> /etc/sysctl.conf
echo fs.aio-nr=50000 >> /etc/sysctl.conf
echo net.ipv4.tcp_mem="2048 51200 725376" >> /etc/sysctl.conf
echo net.core.rmem_default=51200 >> /etc/sysctl.conf
echo net.core.rmem_max=725376 >> /etc/sysctl.conf
echo net.ipv4.tcp_rmem="2048 51200 725376" >> /etc/sysctl.conf
echo net.core.wmem_default=51200 >> /etc/sysctl.conf
echo net.core.wmem_max=725376 >> /etc/sysctl.conf
echo net.ipv4.tcp_wmem="2048 51200 725376" >> /etc/sysctl.conf
echo net.ipv4.tcp_syn_retries=4  >> /etc/sysctl.conf
echo net.ipv4.tcp_synack_retries=2  >> /etc/sysctl.conf
echo net.ipv4.ip_local_port_range=1024 65500  >> /etc/sysctl.conf
echo net.ipv4.tcp_fin_timeout=20  >> /etc/sysctl.conf
echo net.ipv4.tcp_keepalive_time=240  >> /etc/sysctl.conf
echo net.ipv4.tcp_keepalive_probes=3  >> /etc/sysctl.conf
echo net.ipv4.tcp_keepalive_intvl=30  >> /etc/sysctl.conf
echo net.core.somaxconn=5000  >> /etc/sysctl.conf
echo net.core.netdev_max_backlog=5000  >> /etc/sysctl.conf
echo net.ipv4.tcp_max_syn_backlog=5000  >> /etc/sysctl.conf
echo net.core.rps_sock_flow_entries=32000  >> /etc/sysctl.conf
echo net.core.optmem_max=51100  >> /etc/sysctl.conf
echo net.ipv4.tcp_rfc1337=1  >> /etc/sysctl.conf
echo net.ipv4.tcp_max_orphans=2000  >> /etc/sysctl.conf
echo net.ipv4.tcp_syncookies=0  >> /etc/sysctl.conf
echo net.ipv4.tcp_adv_win_scale=2  >> /etc/sysctl.conf

如果你知道，请帮助我

更新：

我在线程中添加了一个Thread.UncaughtExceptionHandler。然后我用这个命令运行了这个应用程序

java - jar app.jar &>> log.txt 当线程停止时，我打开了日志文件

在日志文件中，我看到了下面一行

Exception: java.lang.NullPointerException thrown from the UncaughtExceptionHandler in thread "NioServer Accepter"

我的新密码是

SocketChannel socketChannel = serverSocketChannel.accept();
 NioSocket socket = new NioSocket(server, socketChannel);
 acceptedSocketQueue.offer(socket);

我意识到是{}导致了这种情况的发生，有人有理由吗

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linux java，我的线程无一例外地终止了，为什么？

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