部署Telegraf+Influxdb+Grafana 架構來監控 MySQL

時間 2020-12-06

標籤 mysql sql shell 數據庫 json vim 網絡架構 app tcp 欄目系統架構简体版

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前段時間小編寫了一篇：使用Nginx+Telegraf+Influxb+Grafana構建高逼格Nginx集羣監控系統！文章，詳細了介紹了採集器telegraf, 時序數據庫influxdb , 數據展現Grafana的部署以及系統主機側的監控添加，圖表的展現。mysql

本文就接着介紹使用 Telegraf+Influxdb+Grafana架構來快速監控MySQL。sql

首先，咱們先看下效果圖：shell

1、添加telegraf收集MySQL的配置文件

由於咱們在前面已經部署好telegraf 了，也已經採集了主機側的一些CPU ，內存，磁盤，網絡流量等信息，如今收集Mysql 監控信息，最好仍是與以前的telegraf.conf配置文件分離開。數據庫

[root@fxkj ~]# vim /etc/telegraf/telegraf.d/telegraf_mysql.conf
[[outputs.influxdb]]
  database = "mysql_metrics"
  urls = ["http://127.0.0.1:8086"]
  namepass = ["*_mysql"]
  username = "fxkj"
  password = "123456"
[[inputs.mysql]]
  servers = ["root:123456@tcp(localhost:3306)/?tls=false"]
  name_suffix = "_mysql"
  
#database 表示數據庫名稱，採集的數據都放在此庫中
#urls 表示 influxdb 數據庫地址
#servers 裏面包含 了MySQL 受權用戶的 用戶名，密碼 以及鏈接mysql 的地址
#name_suffix 表示名稱後綴

2、重啓telegrag採集器，查看日誌刷新

[root@fxkj ~]#  systemctl restart telegraf.service
[root@fxkj ~]# tail -n 10 /tmp/telegraf.log 
2020-08-11T01:37:20Z E! [outputs.influxdb] when writing to [http://localhost:8086]: Post  
2020-08-11T01:37:42Z I! Loaded processors: 
2020-08-11T01:37:42Z I! Loaded outputs: influxdb influxdb
2020-08-11T01:37:42Z I! Tags enabled: host=fxkjnj.com
2020-08-11T01:37:42Z I! [agent] Config: Interval:10s, Quiet:false, Hostname:"fxkj", Flush Interval:10s

3、登陸到Influxdb中查看Mysql監控數據

[root@aly mysql]# influx -username fxkj -password '123456'
Connected to http://localhost:8086 version 1.8.1
InfluxDB shell version: 1.8.1
> show databases;
name: databases
name
----
_internal
telegraf
mysql_metrics
> use mysql_metrics;
Using database mysql_metrics
> show measurements;
name: measurements
name
----
mysql_mysql

能夠看到有一個mysql_metrics的庫以及一個叫mysql_mysql的表。json

查看錶中有哪些字段：vim

> show field keys from mysql_mysql;
name: mysql_mysql
fieldKey                                 fieldType
--------                                 ---------
aborted_clients                          integer
aborted_connects                         integer
access_denied_errors                     integer
busy_time                                integer
bytes_received                           integer
bytes_sent                               integer
commands_admin_commands                  integer
commands_create_index                    integer
commands_create_procedure                integer
commands_drop_db                         integer
commands_drop_event                      integer
commands_drop_function                   integer
commands_drop_index                      integer
commands_stmt_reprepare                  integer
handler_mrr_key_refills                  integer
handler_read_rnd                         integer
handler_read_rnd_deleted                 integer
handler_read_rnd_next                    integer
handler_rollback                         integer
handler_savepoint                        integer
handler_savepoint_rollback               integer
innodb_buffer_pool_pages_free            integer
innodb_buffer_pool_pages_made_not_young  integer
innodb_buffer_pool_pages_made_young      integer
innodb_dblwr_writes                      integer
innodb_deadlocks                         integer
innodb_descriptors_memory                integer
innodb_dict_tables                       integer
innodb_ibuf_merges                       integer
innodb_ibuf_segment_size                 integer
innodb_x_lock_spin_waits                 integer
key_blocks_not_flushed                   integer
not_flushed_delayed_rows                 integer
open_files                               integer
open_streams                             integer
open_table_definitions                   integer
open_tables                              integer
threads_connected                        integer
threads_created                          integer
threads_running                          integer
uptime                                   integer
uptime_since_flush_status                integer