Using SYSTEMD to implement Tomcat multiple instances

Environment: CentOS 7 x86_64

1. Installing the JDK

RPM-IVH jdk-8u60-linux-x64.rpm

2. Create a regular user

Getent Group Tomcat | | Groupadd-r tomcatgetent passwd Tomcat | | Useradd-r-d/opt-s/bin/nologin Tomcat

3. Download Tomcat 7

Cd/optwget Http://mirrors.ustc.edu.cn/apache/tomcat/tomcat-7/v7.0.64/bin/apache-tomcat-7.0.64.tar.gztar ZXVF APACHE-TOMCAT-7.0.64.TAR.GZMV apache-tomcat-7.0.64 tomcat01chown-r tomcat:tomcat Tomcat01tar zxvf APACHE-TOMCAT-7.0.64.TAR.GZMV apache-tomcat-7.0.64 tomcat02chown-r Tomcat:tomcat tomcat02

Two instances simultaneously listening on port 8080 will inevitably create a conflict, so it must be modified.

Sed-i ' s/8080/8081/g '/opt/tomcat01/conf/server.xmlsed-i ' s/8005/8001/g '/opt/tomcat01/conf/server.xmlsed-i ' s/8080 /8082/g '/opt/tomcat02/conf/server.xmlsed-i ' s/8005/8002/g '/opt/tomcat02/conf/server.xml

AJP is usually not used, it is closed here uniformly.

Sed-i '/8009/d '/opt/tomcat01/conf/server.xmlsed-i '/8009/d '/opt/tomcat01/conf/server.xml

The default operating mode for Tomcat under Linux is bio, which is very low performance, it is recommended to use APR or NIO,

This is changed to NIO, which is non-blocking IO, which performs better.

Sed-i.bak ' s#http/1.1#org.apache.coyote.http11.http11nioprotocol# '/opt/tomcat01/conf/server.xmlsed-i.bak ' S#HTTP /1.1#org.apache.coyote.http11.http11nioprotocol# '/opt/tomcat02/conf/server.xml

3. Create a startup file

Cd/usr/lib/systemd/systemcat >tomcat01.service <<eof[unit]description=apache Tomcat 8After=network.target [Service] type=oneshotexecstart=/opt/tomcat01/bin/startup.shexecstop=/opt/tomcat01/bin/shutdown.shremainafterexit= Yesuser=tomcatgroup=tomcat[install]wantedby=multi-user.targeteof

tomcat02

Sed ' s/tomcat01/tomcat02/g ' tomcat01.service > Tomcat02.service

4. Start the service

Systemctl enable Tomcat01systemctl enable Tomcat02systemctl start Tomcat01systemctl start tomcat02

5. Review the process

PS aux |grep Tomcat

This article is from the "Focus on Linux Operations" blog, please be sure to keep this source http://purplegrape.blog.51cto.com/1330104/1702292

Using SYSTEMD to implement Tomcat multiple instances