net/http: Golang socket: too many open files

socket: too many open
filesulimit -a | grep open
ulimit -n 614400

/etc/security/limits.con/

        * soft nofile 614400

        * hard nofile 614400

    gouser soft nofile 614400

    gouser hard nofile 614400

/etc/sysctl.conf

    fs.file-max = 716800

And execute this command:

    /sbin/sysctl -p

Add to the end of the file /etc/profile:

    if [ $USER = "gouser" ]; then

        if [ $SHELL = "/bin/ksh" ]; then

            ulimit -p 16384

            ulimit -n 65536

        else

            ulimit -u 16384 -n 65536

        fi

    fi

Open a new terminal and execute:

    ulimit -n 614400

stop and start the golang process