#!/bin/bash

function check_resource_cpu(){
  cpu_usage=`ps aux | grep ^mysql | awk '{print $3}'`
  echo $cpu_usage
}

function check_resource_mem(){
  mem_usage=`ps aux | grep ^mysql | awk '{print $4}'`
  echo $mem_usage
}

function check_alive(){
  mysqladmin --defaults-extra-file='/var/lib/zabbix/.my.cnf' ping | grep -c alive
}

function check_num_thread(){
  mysqladmin --defaults-extra-file='/var/lib/zabbix/.my.cnf' status | awk '{print $4}'
}

function check_num_qps(){
  mysqladmin --defaults-extra-file='/var/lib/zabbix/.my.cnf' status | awk '{print $22}'
}

function check_thread_run(){
  mysqladmin --defaults-extra-file='/var/lib/zabbix/.my.cnf' extended-status | grep -wi 'threads_running' | awk '{ print $4}'
}

case $1 in
  check_resource_mem) "$@"; exit;;
  check_resource_cpu) "$@"; exit;;
  check_alive) "$@"; exit;;
  check_num_thread) "$@"; exit;;
  check_thread_run) "$@"; exit;;
  check_num_qps) "$@"; exit;;
esac