Supervisor管理集群

安装配置

centos7 直接yum源安装

安装supervisor

yum -y install supervisor

设置开机自启

systemctl enable supervisord

配置Java环境（tomcat依赖）

使用xshell的话直接命令选择文件位置

rz -e

解压

tar -zxvf jdk-8u60-linux-x64.tar.gz -C /usr/local/

属主属组
chown -R root.root /usr/local/jdk1.8.0_60 

追加配置文件环境

cat>>/etc/profile<<\EOF
###jdk环境###
export JAVA_HOME=/usr/local/jdk1.8.0_60
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=.$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$JAVA_HOME/lib/tools.jar
EOF

使用cat 后面加EOF "/"是不解析变量

source /etc/profile

查看Java版本

Java -version
或者
Java -V

安装tomcat

上传包

rz -e

解压tar zxf tomcat包创建目录

mkdir -p /opt/新的目录名

cp -a tomcat解压文件/* /op/新的目录名

创建supervisor管理tomcat的子配置文件:

vim /etc/supervisord.d/ 自定义.ini
[program:自定义]
command=/opt/新的目录名/bin/catalina.sh run
environment=JAVA_HOME="/usr/local/jdk1.8.0_60",JAVA_BIN="/usr/local/jdk1.8.0_60/bin"
directory=/opt/新的目录名/bin/
numprocs=1
user = root
autostart = true
autorestart=true
startsecs = 5

命令行模式：

supervisorctl status  查看状态
supervisorctl stop tomcat  宕掉tomcat
supervisorctl start tomcat  启动tomcat
supervisorctl restart tomcat  重启tomcat
supervisorctl reread		读取当前运行配置和program配置文件的差异
supervisorctl update   重载配置文件并重启受影响的program

交互模式

[root@ c7-41 tmp]# supervisorctl
app01                            RUNNING   pid 3227, uptime 0:13:49

supervisor> help

default commands (type help <topic>):
=====================================
add    exit      open  reload  restart   start   tail
avail  fg        pid   remove  shutdown  status  update
clear  maintail  quit  reread  signal    stop    version

supervisor> status
app01                            RUNNING   pid 3227, uptime 0:14:40
supervisor> stop app01
app01: stopped

自带管理界面

端口+9001

出于安全考虑，默认配置是没有开启web管理界面，需要修改supervisord.conf配置文件打开http访权限，

;[inet_http_server]        ; inet (TCP) server disabled by default
;port=127.0.0.1:9001       ; (ip_address:port specifier, *:port for all iface)
;username=user              ; (default is no username (open server))
;password=123               ; (default is no password (open server))

修改成

[inet_http_server]        ; inet (TCP) server disabled by default
port=10.0.0.41:9001         ; (ip_address:port specifier, *:port for all iface)
username=user              ; (default is no username (open server))
password=123               ; (default is no password (open server))

port：绑定访问IP和端口，这里是绑定的是本地IP和9001端口
username：登录管理后台的用户名
password：登录管理后台的密码

常见的启动报错

[root@ sfaapp9 logs]# supervisorctl
dealer-update-38021-8055-99      FATAL     Exited too quickly (process log may have details)
[root@ sfaapp9 conf.d]# killall java
[root@ sfaapp9 conf.d]# ps -ef|grep sup
root     16928     1  0 22:21 ?        00:00:00 /usr/bin/python /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
root     17109 15876  0 22:42 pts/3    00:00:00 grep sup
[root@ sfaapp9 conf.d]# kill -9 16928
[root@ sfaapp9 conf.d]# /etc/init.d/supervisord start
此报错，要关掉所有supervisor管理的进程和supervisor本身进程，然后重启启动supervisor。