最近要對數據庫的監控體系進行改進，發現Percona 公司的一款開源的監控工具Percona Monitoring and Management(PMM) 對於MySQL的監控指標各項值比較全面準確，現在公司內部的開發測試環境進行了部署體驗。
主要的架構圖如下：源於官方
可以看到主要是由客戶端的代理程序node_export\mysqld_export\mongodb_export等和客戶端管理工具pmm-admin做爲數據的收集方式併發送到服務端的QAN API\Consul API\Prometheus等各個API然後通過Grafana來展示數據指標，界面非常靚麗
Pmm 的server端的運行方式主要有官方提供的以下三種方式：
1.已經集成好的Docker方式
2.集成好的VirtualBox方式
3. Amazon Machine Image (AMI)
在這裏我用的是Docker方式，輕量部署、升級很方便
PMM的client安裝比較方便，直接安裝官方的yum安裝就OK了
#詳細的請參考官方文檔
https://www.percona.com/doc/percona-monitoring-and-management/index.html
#Dokcer方式部署
提前準備好系統和Docker服務，安裝不在這裏展示
1-創建容器的數據磁盤
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-創建容器的運行實例
docker run -d \ -p 80:80 \ --volumes-from pmm-data \ --name pmm-server \ --restart always \ percona/pmm-server:1.1.1
#客戶端安裝
[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
#增加客戶端mysql監控
[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'.
#命令幫助
[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實例
[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)
安裝完成後的訪問地址列表：其實在 landing page包含了下面三個功能的頁面
| 各個組件 | 功能訪問地址 |
|---|---|
| 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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下面是一些截圖界面
