MySQL-MongoDB开源监控利器之PMM 推荐

最近要对数据库的监控体系进行改进，发现Percona 公司的一款开源的监控工具Percona Monitoring and Management(PMM) 对于MySQL的监控指标各项值比较全面准确，现在公司内部的开发测试环境进行了部署体验。
主要的架构图如下：源于官方



可以看到主要是由客户端的代理程序node_export\mysqld_export\mongodb_export等和客户端管理工具pmm-admin做为数据的收集方式并发送到服务端的QAN API\Consul API\Prometheus等各个API然后通过Grafana来展示数据指标，界面非常靓丽

Pmm 的server端的运行方式主要有官方提供的以下三种方式：
1.已经集成好的Docker方式
2.集成好的VirtualBox方式
3. Amazon Machine Image (AMI)
在这里我用的是Docker方式，轻量部署、升级很方便
PMM的client安装比较方便，直接安装官方的yum安装就OK了

#详细的请参考官方文档
https://www.percona.com/doc/percona-monitoring-and-management/index.html

#Dokcer方式部署
提前准备好系统和Docker服务，安装不在这里展示
1-创建容器的数据磁盘

docker create \
-v /opt/prometheus/data \
-v /opt/consul-data \
-v /var/lib/mysql \
-v /var/lib/grafana \
--name pmm-data \
percona/pmm-server:1.1.1 /bin/true

2-创建容器的运行实例

docker run -d \
-p 80:80 \
--volumes-from pmm-data \
--name pmm-server \
--restart always \
percona/pmm-server:1.1.1

#客户端安装
[root@master ~]# yum install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpm [root@master ~]# yum install -y pmm-client

#增加客户端mysql监控

[root@master ~]# pmm-admin config --server 192.168.100.171
OK, PMM server is alive.

PMM Server | 192.168.100.171
Client Name | master.wboy.com
Client Address | 192.168.100.41

[root@master ~]# pmm-admin list
pmm-admin 1.1.1

PMM Server | 192.168.100.171
Client Name | master.wboy.com
Client Address | 192.168.100.41
Service Manager | unix-systemv

No monitoring registered for this node identified as 'master.wboy.com'.

#命令帮助
[root@master ~]# pmm-admin add --help
This command is used to add a monitoring service.

Usage:
pmm-admin add [command]

Available Commands:
mysql Add complete monitoring for MySQL instance (linux and mysql metrics, queries).
linux:metrics Add this system to metrics monitoring.
mysql:metrics Add MySQL instance to metrics monitoring.
mysql:queries Add MySQL instance to Query Analytics.
mongodb Add complete monitoring for MongoDB instance (linux and mongodb metrics).
mongodb:metrics Add MongoDB instance to metrics monitoring.
proxysql:metrics Add ProxySQL instance to metrics monitoring.

Flags:
--service-port uint16 service port

Global Flags:
-c, --config-file string PMM config file (default "/usr/local/percona/pmm-client/pmm.yml")

Use "pmm-admin add [command] --help" for more information about a command.
[root@master ~]# pmm-admin add mysql --help
This command adds the given MySQL instance to system, metrics and queries monitoring.

When adding a MySQL instance, this tool tries to auto-detect the DSN and credentials.
If you want to create a new user to be used for metrics collecting, provide --create-user option. pmm-admin will create
a new user 'pmm@' automatically using the given (auto-detected) MySQL credentials for granting purpose.

Table statistics is automatically disabled when there are more than 10000 tables on MySQL.

[name] is an optional argument, by default it is set to the client name of this PMM client.

Usage:
pmm-admin add mysql [name] [flags]

Examples:
pmm-admin add mysql --password abc123
pmm-admin add mysql --password abc123 --create-user
pmm-admin add mysql --password abc123 --port 3307 instance3307

Flags:
--create-user create a new MySQL user
--create-user-maxconn uint16 max user connections for a new user (default 10)
--create-user-password string optional password for a new MySQL user
--defaults-file string path to my.cnf
--disable-binlogstats disable binlog statistics
--disable-processlist disable process state metrics
--disable-tablestats disable table statistics
--disable-tablestats-limit uint16 number of tables after which table stats are disabled automatically (default 1000)
--disable-userstats disable user statistics
--force force to create/update MySQL user
--host string MySQL host
--password string MySQL password
--port string MySQL port
--query-source string source of SQL queries: auto, slowlog, perfschema (default "auto")
--socket string MySQL socket
--user string MySQL username

Global Flags:
-c, --config-file string PMM config file (default "/usr/local/percona/pmm-client/pmm.yml")
--service-port uint16 service port

#增加本地mysql实例
[root@master ~]# pmm-admin add mysql --user root --password root
[linux:metrics] OK, now monitoring this system.
[mysql:metrics] OK, now monitoring MySQL metrics using DSN root:***@unix(/var/lib/mysql/mysql.sock)
[mysql:queries] OK, now monitoring MySQL queries from slowlog using DSN root:***@unix(/var/lib/mysql/mysql.sock)

安装完成后的访问地址列表：其实在 landing page包含了下面三个功能的页面

各个组件	功能访问地址
PMM landing page	http://192.168.100.1
Query Analytics (QAN web app)	http://192.168.100.1/qan/
Metrics Monitor (Grafana)	http://192.168.100.1/graph/ User name: admin Password: admin
Orchestrator	http://192.168.100.1/orchestrator

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下面是一些截图界面