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centos7下systemd实现tomcat多实例
时间:2022-06-30 21:06:07 编辑:袖梨 来源:一聚教程网
系统环境: CentOS 7 x86_64
1、安装jdk
rpm -ivh jdk-8u60-linux-x64.rpm
2、创建普通用户
getent group tomcat || groupadd -r tomcat
getent passwd tomcat || useradd -r -d /opt -s /bin/nologin tomcat
3、下载tomcat 7
cd /opt
wget http://mirrors.ustc.edu.cn/apache/tomcat/tomcat-7/v7.0.64/bin/apache-tomcat-7.0.64.tar.gz
tar zxvf apache-tomcat-7.0.64.tar.gz
mv apache-tomcat-7.0.64 tomcat01
chown -R tomcat:tomcat tomcat01
tar zxvf apache-tomcat-7.0.64.tar.gz
mv apache-tomcat-7.0.64 tomcat02
chown -R tomcat:tomcat tomcat02
两个实例同时监听8080端口必然会产生冲突,所以必须修改.
sed -i 's/8080/8081/g' /opt/tomcat01/conf/server.xml
sed -i 's/8005/8001/g' /opt/tomcat01/conf/server.xml
sed -i 's/8080/8082/g' /opt/tomcat02/conf/server.xml
sed -i 's/8005/8002/g' /opt/tomcat02/conf/server.xml
AJP通常用不上,这里统一关闭
sed -i '/8009/d' /opt/tomcat01/conf/server.xml
sed -i '/8009/d' /opt/tomcat01/conf/server.xml
tomcat在Linux 下默认工作模式是bio,性能非常低,建议使用apr或者nio,
这里改为nio,即非阻塞IO,性能比较好。
sed -i.bak 's#HTTP/1.1#org.apache.coyote.http11.Http11NioProtocol#' /opt/tomcat01/conf/server.xml
sed -i.bak 's#HTTP/1.1#org.apache.coyote.http11.Http11NioProtocol#' /opt/tomcat02/conf/server.xml
4、创建启动文件
cd /usr/lib/systemd/system
cat >tomcat01.service <
Description=Apache Tomcat 7
After=network.target
[Service]
Type=oneshot
ExecStart=/opt/tomcat01/bin/startup.sh
ExecStop=/opt/tomcat01/bin/shutdown.sh
RemainAfterExit=yes
User=tomcat
Group=tomcat
[Install]
WantedBy=multi-user.target
EOF
tomcat02同理
sed 's/tomcat01/tomcat02/g' tomcat01.service > tomcat02.service
5、启动服务
systemctl enable tomcat01
systemctl enable tomcat02
systemctl start tomcat01
systemctl start tomcat02
6、查看进程
ps aux |grep tomcat
附上一份nginx反向代理tomcat的配置文件
proxy_cache_path /var/cache/nginx/proxy_cache levels=1:2 keys_zone=static:10m inactive=1h max_size=1g;
upstream tomcat {
ip_hash ;
#hash $remote_addr consistent;
server 127.0.0.1:8081 max_fails=1 fail_timeout=2s ;
server 127.0.0.1:8082 max_fails=1 fail_timeout=2s ; ;
keepalive 16;
}
server {
listen 80;
server_name tomcat.example.com;
charset utf-8;
access_log /var/log/nginx/tomcat.access.log main;
root /usr/share/nginx/html;
index index.html index.htm index.jsp;
location / {
proxy_pass http://tomcat;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_read_timeout 300;
proxy_http_version 1.1;
proxy_set_header Connection "";
add_header X-Backend "$upstream_addr";
}
location ~* ^.+.(js|css|ico|gif|jpg|jpeg|png)$ {
proxy_pass http://tomcat ;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_read_timeout 300;
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_cache static;
proxy_cache_key $host$uri$is_args$args;
proxy_cache_valid 200 302 5m;
proxy_cache_valid 404 1m;
proxy_cache_valid any 1h;
add_header X-Cache $upstream_cache_status;
#log_not_found off;
#access_log off;
expires max;
}
location ~ /.ht {
deny all;
}
}
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