linux配置多个tomcat

对于现在server的配置，内存4G，动辄几十G内存，完全可以一机多tomcat完全利用起来。一机多tomcat需要修改tomcat配置文件几处地方。

1.tomcat环境变量

环境变量中自定义多tomcat主目录

vi /etc/profile

export CATALINA_1_HOME=/usr/local/tomcat1
export TOMCAT_1_HOME=/usr/local/tomcat1
export CATALINA_2_HOME=/usr/local/tomcat2
export TOMCAT_2_HOME=/usr/local/tomcat2
export CATALINA_3_HOME=/usr/local/tomcat3
export TOMCAT_3_HOME=/usr/local/tomcat3

2.tomcat配置文件server.xml端口JVM虚拟机名称

每个tomcat的8005 8080 8009 8443端口不能一样，比如：

tomcat1为：

8005改为8501

8080改为8801

8009改为8901

8443改为8401

tomcat2为:

8005改为8502

8080改为8802

8009改为8902

8443改为8402

tomcat3为:

8005改为8503

8080改为8803

8009改为8903

8443改为8403

修改JVM名称:

找到每个tomcat的<Engine name="Catalina" defaultHost="localhost">配置分别修改为修改为(每个tomcat的jvm名称不能一致):

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2">

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat3">

3.修改tomcat启动、停止脚本

vi /etc/init.d/tomcat1

#############################################
export JAVA_HOME=/usr/java/default
export CATALINA_HOME=$CATALINA_1_HOME

case "$1" in
'start')
/usr/local/tomcat1/bin/startup.sh
touch /var/lock/subsys/tomcat1
;;

'stop')
/usr/local/tomcat1/bin/shutdown.sh
rm -f /var/lock/subsys/tomcat1
;;

'restart')
$0 stop
$0 start
;;

*)
echo "Usage: tomcat1 { start | stop | restart }"
exit 1
esac
exit 0
###############################################

vi /etc/init.d/tomcat2

#############################################
export JAVA_HOME=/usr/java/default
export CATALINA_HOME=$CATALINA_2_HOME

case "$1" in
'start')
/usr/local/tomcat2/bin/startup.sh
touch /var/lock/subsys/tomcat2
;;

'stop')
/usr/local/tomcat2/bin/shutdown.sh
rm -f /var/lock/subsys/tomcat2
;;

'restart')
$0 stop
$0 start
;;

*)
echo "Usage: tomcat2 { start | stop | restart }"
exit 1
esac
exit 0
###############################################

vi /etc/init.d/tomcat3

#############################################
export JAVA_HOME=/usr/java/default
export CATALINA_HOME=$CATALINA_3_HOME

case "$1" in
'start')
/usr/local/tomcat3/bin/startup.sh
touch /var/lock/subsys/tomcat3
;;

'stop')
/usr/local/tomcat3/bin/shutdown.sh
rm -f /var/lock/subsys/tomcat3
;;

'restart')
$0 stop
$0 start
;;

*)
echo "Usage: tomcat3 { start | stop | restart }"
exit 1
esac
exit 0
###############################################

配置完成后需要给/etc/init.d/目录中的tomcat1 tomcat2 tomcat3文件添加执行权限。

chmod u+x /etc/init.d/tomcat1
chmod u+x /etc/init.d/tomcat2
chmod u+x /etc/init.d/tomcat3

然后启动tomcat使用以下命令就可以启动了：

service tomcat1 start
service tomcat2 start
service tomcat3 start

停止tomcat的命令与启动命令基本相同，start改为tomcat就OK了。