apache配置默认自动重启

1.增加环境变量.

vi /root/apache-tomcat-8.5.75/bin/setenv.sh

[root@app1 bin]# cat setenv.sh
export CATALINA_OPTS="$CATALINA_OPTS -Xms1600m"
export CATALINA_OPTS="$CATALINA_OPTS -Xmx1600m"
export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxPermSize=256m"
[root@app1 bin]#

2.配置自启服务

　　cat /usr/lib/systemd/system/tomcat.servic

[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
Environment='JAVA_HOME=/usr/local/jdk1.8.0_271'
Environment='CATALINA_PID=/root/apache-tomcat-8.5.75/tomcat.pid'
Environment='CATALINA_HOME=/root/apache-tomcat-8.5.75/'
Environment='CATALINA_BASE=/root/apache-tomcat-8.5.75/'
Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'

PIDFile=/root/apache-tomcat-8.5.75/tomcat.pid
ExecStart=/root/apache-tomcat-8.5.75//bin/startup.sh
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true

[Install]
WantedBy=multi-user.target

3.设置自动启动

systemctl enable tomcat
systemctl daemon-reload
systemctl start tomcat

4.查看进程

ps -ef|grep java