Java Tomcat Script

Thread-Private Memory area:

Java Virtual machine stacks and program counters

JDK monitoring and fault handling tools:

JPS:JVM process Status Tool: Displays a list of all hostspot virtual machine processes within a specified system

JSTAT:JVM Statistics monitoring Tool: Mobile and display hostsport virtual machine All aspects of running data

Jinfo: displaying virtual machine information

Jmap: Generating a memory snapshot of a hostspot virtual machine

Visualization tools:

JVISUALVM:

Jconsole:java Monitoring and Management console

Tomcat Init script

Java_home=/usr/local/java

Catalina_home=/data/tomcat

Export Java_home Catalina_home

EXEC $CATAlINA _home/bin/catalina.sh $*

Chkconfig--add Tomcat

Chkconfig--list Tomcat

Want to write a system initialization script, Ah, do not know how to write, write a few pen.

#!/bin/bash# Close iptables firewall function stop_iptables  ()  {    iptables -f     /etc/init.d/iptables save >> /dev/null     Chkconfig  iptables off} #关闭selinux防火墙function  stop_selinux  ()  {     setenforce 0 > /dev/null 2>&1    sed -i   '/^selinux=/s/=.*/=disabled/'  /etc/selinux/config} #修改系统打开文件数和最大连接数function  command_max_file   ()  {    sed -i  ' $a  \*            soft   nofile        65535 '  /etc/security/limits.conf    sed -i  ' $a  \*            hard   nofile         65535 '  /etc/security/limits.conf    sed -i  ' $a  \*            soft   noproc        20480 '  /etc /security/limits.conf    sed -i  ' $a  \*            hard   noproc         65535 '  /etc/security/limits.conf}function create_user  ()  {    read  -p  "Enter the user you want to create:"  command_user    /usr/sbin/useradd  $command _user  -g  $command _user    read -p  "Do you give $command_user sudo permission: (y/n)"   chose    if [  "$chose"  =  "y"  ];then         /bin/sed -i  '/^root/a\ $command _user    all= (All)     nopasswd: all ' &Nbsp;/etc/sudoers    fi    stop_iptables    stop_ Selinux    command_max_file}create_user

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Java Tomcat Script