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pm2-mysql

v1.0.0

Published

Mysql module

Downloads

13

Readme

Description

PM2 module to monitor a MySQL server with Keymetrics

Install

pm2 install pm2-mysql

Requirements

This module requires a MySQL install (tested against v5.6). Optionally, to monitor the DB disk Read/Write you will need iostat located in the sysstat package.

Slow Queries

To be able to display Slow Queries you first need to activate slow_query_log in MySQL via : Edit /etc/mysql/my.cnf and add : slow_query_log = '1'

and you need to set the log file path to a file your pm2 user has read access to : slow_query_log_file = '/var/log/mysql/slow-queries.log'

General Query Log

To be able to display the last queries, you need to enable the General Query Log via : general_log = '1'

and you need to set the log file path to a file your pm2 user has read access to : general_log_file = '/var/log/mysql/general.log'

Configure

  • host (Defaults to localhost) : Set the hostname/ip of your mysql server
  • port (Defaults to 3306): Set the port of your mysql server
  • user (Defaults to root): Set the user of your mysql server
  • password (Defaults to none): Set the password of your mysql server
  • refreshRate (Defaults to 1000): Set the stats refresh rate (in milliseconds)
  • dbDiskName (Defaults to "sda"): Sets the name of the disk used by the database (used to fetch io stats)
  • slowQueriesLog (Defaults to "/var/log/mysql/slow-queries.log"): log file to fetch slow queries from
  • generalLog (Defaults to "/var/log/mysql/general.log"): log file to fetch last queries from
  • lastQueriesSize (Defaults to 100): number of lines to fetch from general log for last queries display
  • errorLog (Defaults to "/var/log/mysql/error.log"): error log file
  • lastErrorsSize (Defaults to 100): number of lines to fetch from error log for last errors display

How to set these values ?

After having installed the module you have to type : pm2 set pm2-mysql:<key> <value>

e.g:

  • pm2 set pm2-mysql:port 3307 (set the mysql port to 3307)
  • pm2 set pm2-mysql:password keppo (use keppo as password for your mysql server)

Uninstall

pm2 uninstall pm2-mysql