03.Zabbix应用服务监控
回到顶部(go to top)
一、Zabbix监控Nginx
1.1 实验环境
| 服务器系统 | 角色 | IP |
|---|---|---|
| CentOS 7.4 x86_64 | Zabbix-Server | 192.168.90.10 |
| CentOS 7.4 x86_64 | Zabbix-Agent | 192.168.90.11 |
1.2.在nginx.conf的Server标签下添加如下内容
location /nginx_status { stub_status on; access_log off; allow 127.0.0.1; deny all; } 1.3.本地访问Nginx Status
[root@linux-node1 ~]# curl http://127.0.0.1/nginx_status Active connections: 1 server accepts handled requests 1 1 1 Reading: 0 Writing: 1 Waiting: 0 1.4.编写Nginx的Shell脚本(如果端口不一致,只需要修改脚本端口即可)
[root@Agent ~]# mkdir -p /etc/zabbix/scripts [root@linux-node1 scripts]# vim /etc/zabbix/scripts/nginx_status.sh #!/bin/bash ############################################################ # $Name: nginx_status.sh # $Version: v1.0 # $Function: Nginx Status # $Author: xuliangwei # $organization: www.xuliangwei.com,www,bjstack.com # $Create Date: 2016-06-23 # $Description: Monitor Nginx Service Status ############################################################ NGINX_PORT=80 #如果端口不同仅需要修改脚本即可，否则修改xml很麻烦 NGINX_COMMAND=$1 nginx_active(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk '/Active/ {print $NF}' } nginx_reading(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk '/Reading/ {print $2}' } nginx_writing(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk '/Writing/ {print $4}' } nginx_waiting(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk '/Waiting/ {print $6}' } nginx_accepts(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk 'NR==3 {print $1}' } nginx_handled(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk 'NR==3 {print $2}' } nginx_requests(){ /usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/nginx_status/" |awk 'NR==3 {print $3}' } case $NGINX_COMMAND in active) nginx_active; ;; reading) nginx_reading; ;; writing) nginx_writing; ;; waiting) nginx_waiting; ;; accepts) nginx_accepts; ;; handled) nginx_handled; ;; requests) nginx_requests; ;; *) echo $"USAGE:$0 {active|reading|writing|waiting|accepts|handled|requests}" esac 1.5.给脚本添加执行权限
[root@Agent]# chmod +x /etc/zabbix/scripts/nginx_status.sh 1.6.监控项nginx_status.conf的配置文件如下：
[root@Agent ~]# cat /etc/zabbix/zabbix_agentd.d/nginx_status.conf UserParameter=nginx_status[*],/bin/bash /etc/zabbix/zabbix_agentd.d/scripts/nginx_status.sh "$1" 1.7.重启zabbix-agent
[root@Agent ~]# systemctl restart zabbix-agent 1.8.使用Zabbix_get来获取值
[root@linux-node1 ~]# zabbix_get -s 192.168.90.11 -k nginx_status[writing] 1 1.9.添加所有监控项, 如图4-3, 记得关联到指定的主机
二、Zabbix监控PHP
2.1.实践环境
| 服务器系统 | 角色 | IP |
|---|---|---|
| CentOS 7.4 x86_64 | Zabbix-Server | 192.168.90.10 |
| CentOS 7.4 x86_64 | Zabbix-Agent | 192.168.90.11 |
2.2.PHP-FPM工作模式通常与Nginx结合使用,修改php-fpm.conf
[root@Agent ~]# vim /etc/php-fpm.d/www.conf pm.status_path = /phpfpm_status 2.3.修改nginx.conf的配置文件,增加如下location访问PHP-FPM状态信息。
location ~ ^/(phpfpm_status)$ { include fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; } 2.4.访问测试phpfpm_status
[root@Agent ~]# curl http://127.0.0.1/phpfpm_status pool: www process manager: dynamic start time: 05/Jul/2016:15:30:56 +0800 start since: 409 accepted conn: 22 listen queue: 0 max listen queue: 0 listen queue len: 128 idle processes: 4 active processes: 1 total processes: 5 max active processes: 2 max children reached: 0 #PHP-FPM状态解释： pool #fpm池名称,大多数为www process manager #进程管理方式dynamic或者static start time #启动日志,如果reload了fpm，时间会更新 start since #运行时间 accepted conn #当前池接受的请求数 listen queue #请求等待队列,如果这个值不为0,那么需要增加FPM的进程数量 max listen queue #请求等待队列最高的数量 listen queue len #socket等待队列长度 idle processes #空闲进程数量 active processes #活跃进程数量 total processes #总进程数量 max active processes #最大的活跃进程数量（FPM启动开始计算） max children reached #程最大数量限制的次数，如果这个数量不为0，那说明你的最大进程数量过小,可以适当调整。 2.5.编写php-fpm的Shell脚本(如果端口不一致,只需要修改脚本端口即可)
[root@Agent ~]# cd /etc/zabbix/scripts [root@Agent scripts]# vim phpfpm_status.sh #!/bin/bash ############################################################ # $Name: phpfpm_status.sh # $Version: v1.0 # $Function: Nginx Status # $Author: xuliangwei # $organization: www.xuliangwei.com # $Create Date: 2016-06-23 # $Description: Monitor Nginx Service Status ############################################################ PHPFPM_COMMAND=$1 PHPFPM_PORT=80 #根据监听不同端口进行调整 start_since(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^start since:/ {print $NF}' } accepted_conn(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^accepted conn:/ {print $NF}' } listen_queue(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^listen queue:/ {print $NF}' } max_listen_queue(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^max listen queue:/ {print $NF}' } listen_queue_len(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^listen queue len:/ {print $NF}' } idle_processes(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^idle processes:/ {print $NF}' } active_processes(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^active processes:/ {print $NF}' } total_processes(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^total processes:/ {print $NF}' } max_active_processes(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^max active processes:/ {print $NF}' } max_children_reached(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^max children reached:/ {print $NF}' } slow_requests(){ /usr/bin/curl -s "http://127.0.0.1:"$PHPFPM_PORT"/phpfpm_status" |awk '/^slow requests:/ {print $NF}' } case $PHPFPM_COMMAND in start_since) start_since; ;; accepted_conn) accepted_conn; ;; listen_queue) listen_queue; ;; max_listen_queue) max_listen_queue; ;; listen_queue_len) listen_queue_len; ;; idle_processes) idle_processes; ;; active_processes) active_processes; ;; total_processes) total_processes; ;; max_active_processes) max_active_processes; ;; max_children_reached) max_children_reached; ;; slow_requests) slow_requests; ;; *) echo $"USAGE:$0 {start_since|accepted_conn|listen_queue|max_listen_queue|listen_queue_len|idle_processes|active_processes|total_processes|max_active_processes|max_children_reached}" esac 2.6.给脚本添加执行权限
[root@Agent scripts]# chmod +x phpfpm_status.sh 2.7.监控项的phpfpm_status.conf配置文件如下：
[root@Agent ~]# cat /etc/zabbix/zabbix_agentd.d/phpfpm_status.conf UserParameter=phpfpm_status[*],/bin/bash /etc/zabbix/phpfpm_status.sh "$1" 2.8.重启zabbix-agent
[root@Agent ~]# systemctl restart zabbix-agent
2.9.Server使用zabbix_get命令来获取Agent端的值
[root@ZabbixServer]# zabbix_get -s 192.168.90.11 -k phpfpm_status[accepted_conn] 45 2.10.添加所有监控项, 如下图4-5, 最后记得关联至对应主机
2.11.查看图形，如图4-4(图形自定义)
三、Zabbix监控MySQL
percona Monitoring Plugins是一个高质量的组件，为MySQL数据库添加企业级的监控和图表功能。但其脚本使用PHP实现，故而Zabbix-Agent需要安装PHP环境。
实践环境
| 服务器系统 | 角色 | IP |
|---|---|---|
| CentOS 7.4 x86_64 | Zabbix-Server | 192.168.90.10 |
| CentOS 7.4 x86_64 | Zabbix-Agent | 192.168.90.11 |
3.1.在Zabbix-Agent端安装percona Monitoring Plugins
[root@Agent ~]# yum install -y http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm [root@Agent ~]# yum install percona-zabbix-templates -y 3.2.查看percona安装后的目录结构
[root@Agent percona]# tree /var/lib/zabbix/percona /var/lib/zabbix/percona ├── scripts #脚本文件路径 │ ├── get_mysql_stats_wrapper.sh │ └── ss_get_mysql_stats.php └── templates ├── userparameter_percona_mysql.conf #key文件位置 └── zabbix_agent_template_percona_mysql_server_ht_2.0.9-sver1.1.6.xml #模板文件位置 3.4.将自定义监控项配置文件复制至/etc/zabbix_agentd.conf.d目录下
[root@Agent ~]# cp /var/lib/zabbix/percona/templates/userparameter_percona_mysql.conf /etc/zabbix/zabbix_agentd.d/percona_mysql.conf 3.5.重启zabbix-agent
[root@Agent ~]# systemctl restart zabbix-agent 3.6.修改脚本中的MySQL用户名和密码
[root@Agent scripts]# vim /var/lib/zabbix/percona/scripts/ss_get_mysql_stats.php $mysql_user = 'root'; $mysql_pass = 'xuliangwei.com'; $mysql_port = 3306; 3.7.在Zabbix-Server端上使用Zabbix_get获取值(否则会失败)
[root@Server ~]# zabbix_get -s 192.168.90.11 -k MySQL.pool-read-requests 223003813 //如果获取不到值常见问题 1.看是否是MySQL密码错误 2.不要直接执行脚本来获取 3.删除/tmp/localhost-mysql_cacti_stats.txt文件 4.权限问题导致 3.8.在Zabbix页面模板选项中导入Percona模板, 模板存放在/var/lib/zabbix/percona/templates， 最后关联主机即可。
四、Zabbix监控Redis
Redis使用自带的INFO命令，进行状态监控。以一种易于解释且易于阅读的格式，返回关于Redis服务器的各种信息和统计数值。
实践环境
| 服务器系统 | 角色 | IP |
|---|---|---|
| CentOS 7.4 x86_64 | Zabbix-Server | 192.168.90.10 |
| CentOS 7.4 x86_64 | Zabbix-Agent | 192.168.90.11 |
4.1.编写Shell脚本
- 脚本端口、连接redis服务地址根据具体情况进行修改
- AUTH认证没有开启，将PASSWD修改为空即可。
[root@Agent ~]# mkdir -p /etc/zabbix/scripts [root@Agent ~]# vim /etc/zabbix/scripts/redis_status.sh #!/bin/bash ############################################################ # $Name: redis_status.sh # $Version: v1.0 # $Function: Redis Status # $Author: xuliangwei # $organization: www.xuliangwei.com # $Create Date: 2016-06-23 # $Description: Monitor Redis Service Status ############################################################ R_COMMAND="$1" R_PORT="6379" #根据实际情况调整端口 R_SERVER="127.0.0.1" #根据具体情况调整IP地址 PASSWD="" #如果没有设置Redis密码,为空即可 redis_status(){ (echo -en "AUTH $PASSWD\r\nINFO\r\n";sleep 1;) | /usr/bin/nc "$R_SERVER" "$R_PORT" > /tmp/redis_"$R_PORT".tmp REDIS_STAT_VALUE=$(grep "$R_COMMAND:" /tmp/redis_"$R_PORT".tmp | cut -d ':' -f2) echo "$REDIS_STAT_VALUE" } case $R_COMMAND in used_cpu_user_children) redis_status "$R_PORT" "$R_COMMAND" ;; used_cpu_sys) redis_status "$R_PORT" "$R_COMMAND" ;; total_commands_processed) redis_status "$R_PORT" "$R_COMMAND" ;; role) redis_status "$R_PORT" "$R_COMMAND" ;; lru_clock) redis_status "$R_PORT" "$R_COMMAND" ;; latest_fork_usec) redis_status "$R_PORT" "$R_COMMAND" ;; keyspace_misses) redis_status "$R_PORT" "$R_COMMAND" ;; keyspace_hits) redis_status "$R_PORT" "$R_COMMAND" ;; keys) redis_status "$R_PORT" "$R_COMMAND" ;; expires) redis_status "$R_PORT" "$R_COMMAND" ;; expired_keys) redis_status "$R_PORT" "$R_COMMAND" ;; evicted_keys) redis_status "$R_PORT" "$R_COMMAND" ;; connected_clients) redis_status "$R_PORT" "$R_COMMAND" ;; changes_since_last_save) redis_status "$R_PORT" "$R_COMMAND" ;; blocked_clients) redis_status "$R_PORT" "