使用zabbix監控mysql的三種方式

時間 2019-11-16

原文原文鏈接

1.只是安裝agent

2.啓用模板監控

3.啓用自定義腳本的模板監控

zabbix中默認有mysql的監控模板。默認已經在zabbix2.2及以上的版本中。模板名稱：Template App MySQL。

若是沒有則要去zabbix官方下載 url：https://zabbix.org/mw/images/d/d4/Template_App_MySQL-2.2.0.xml，而後在Zabbix服務器的前端Web界面的組態->模板頁面中選擇匯入，在新的頁面中導入下載的模板文件。

#模擬環境

mysql1 172.16.160.161 #zabbix server

mysql2 172.16.160.162 #zabbix agent

#mysql配置-在zabbix agent上操做

##添加賬戶登陸信息等，

執行mysql mysqladmin腳本命令時不須要賬戶密碼，也再也不提示警告

$ cat /etc/my.cnf

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

validate_password = off

innodb_file_per_table = 1

character_set_server=utf8

init_connect='SET NAMES utf8'

symbolic-links=0

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

[mysql] #添加如下內容

user = mysqlcheck

password = mysqlchechk

[client]

user = mysqlcheck

password = mysqlchechk

[mysqladmin]

user = mysqlcheck

password = mysqlchechk

##添加賬戶密碼

mysql> GRANT USAGE ON *.* TO 'mysqlcheck'@'localhost' IDENTIFIED BY 'mysqlcheck';

mysql> FLUSH PRIVILEGES;

#zabbix配置-在zabbix agent上操做

##安裝zabbix_agent並修改配置文件

$ rpm -Uv http://repo.zabbix.com/zabbix/3.2/rhel/7/x86_64/zabbix-agent-3.2.6-1.el7.x86_64.rpm

$ yum install -y zabbix-agent

$ cat /etc/zabbix/zabbix_agentd.conf |grep -v ^# |grep -v ^$

PidFile=/var/run/zabbix/zabbix_agentd.pid

LogFile=/var/log/zabbix/zabbix_agentd.log

LogFileSize=0

Server=172.16.160.161 #指向zabbix服務器

ListenPort=10050

ListenIP=0.0.0.0

ServerActive=172.16.160.161 #指向zabbix服務器

Hostname=mysql2 #zabbix服務器上配置主機的時候要用的名稱

Include=/etc/zabbix/zabbix_agentd.d/*.conf #這一行是指向模板文件的

##添加用來關聯mysql的配置文件.my.cnf，

執行mysql mysqladmin腳本命令時不須要賬戶密碼，也再也不提示警告

mysql.sock文件經過find / -name mysql.sock找出路徑

$ cat /etc/zabbix/.my.cnf

[mysql]

host = localhost

user = mysqlcheck

password = mysqlcheck

socket = /var/lib/mysql/mysql.sock

[mysqladmin]

host = localhost

user = mysqlcheck

password = mysqlchechk

socket = /var/lib/mysql/mysql.sock

##修改zabbix模板配置文件中的mysql路徑

這個文件用於制定Zabbix Agent如何獲取MySQL數據

咱們須要將全部的/var/lib/zabbix修改成當前.my.cnf文件的路徑/etc/zabbix。

$ sed -i 's@/var/lib/zabbix@/etc/zabbix@g' /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf

$ cat /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf |grep -v ^#|grep -v ^$

UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | HOME=/etc/zabbix mysql -N | awk '{print $$2}'

UserParameter=mysql.size[*],bash -c 'echo "select sum($(case "$3" in both|"") echo "data_length+index_length";; data|index) echo "$3_length";; free) echo "data_free";; esac)) from information_schema.tables$([[ "$1" = "all" || ! "$1" ]] || echo " where table_schema=\"$1\"")$([[ "$2" = "all" || ! "$2" ]] || echo "and table_name=\"$2\"");" | HOME=/etc/zabbix mysql -N'

UserParameter=mysql.ping,HOME=/etc/zabbix mysqladmin ping | grep -c alive

UserParameter=mysql.version,mysql -V

##設置完成以後保存並重啓Zabbix Agent

$ systemctl restart zabbix-agent.service

##測試不用賬戶密碼就能夠執行mysqladmin命令

$ mysqladmin ping | grep -c alive

#zabbix頁面配置-在zabbix server上操做

##建立主機

Configuration—Hosts—建立主機

主機名稱，羣組選擇,agent的IP地址和端口，而後點更新

##使用模板

Configuration—Hosts—主機名稱—Tempaltes，搜索MySQL，添加彈出的模板Template App MySQL，而後點更新

注意：選完模板後，要點下添加按鈕才行。

##查看監控效果

Monitoring—Graphs,選擇組，而後選擇host及展現的圖形

這時候圖形裏會多出mysql bandwidth和mysql operations，並且有輸出信息

#總結說明

說明一下，安裝zabbix_agent後，已經能夠監控mysql服務器的性能參數，

不過若是還須要進一步監控作些簡單的監控，這時候就要用zabbix自帶的模板；

然而若是隻須要對mysql數據庫作簡單的監控，zabbix自帶的模板徹底可以知足要求；若是有更高的需求那須要本身寫腳本，或者使用fromdual插件等。

參考：http://www.fromdual.com/mpm-installation-guide

zabbix在模板中預約義了一些key，但一般狀況，並不能知足咱們的需求。

幸運的是zabbix提供了自定義key的方法，所以咱們能夠靈活的監控各類咱們想要監控的數據。

##啓用

$ vi /etc/zabbix/zabbix_agentd.conf

UnsafeUserParameters=1

$ cat /etc/zabbix/zabbix_agentd.conf |grep -v ^# |grep -v ^$

PidFile=/var/run/zabbix/zabbix_agentd.pid

LogFile=/var/log/zabbix/zabbix_agentd.log

LogFileSize=0

Server=172.16.160.161 #指向zabbix服務器

ListenPort=10050

ListenIP=0.0.0.0

ServerActive=172.16.160.161 #指向zabbix服務器

Hostname=mysql2 #zabbix服務器上配置主機的時候要用的名稱

Include=/etc/zabbix/zabbix_agentd.d/*.conf #這一行是指向模板文件的

UnsafeUserParameters=1

$ vi /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf

#UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | HOME=/etc/zabbix mysql -N | awk '{print $$2}'

UserParameter=mysql.status[*],/script/getmysqlinfo.sh $1 $2

$ cat /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf |grep -v ^#|grep -v ^$

UserParameter=mysql.status[*],/script/getmysqlinfo.sh $1 $2

UserParameter=mysql.ping,HOME=/etc/zabbix mysqladmin ping | grep -c alive

UserParameter=mysql.version,mysql -V

腳本內容：可從https://github.com/flashyhl/Zabbix-Monitor/blob/master/zabbix_mysql/script/getmysqlinfo.sh下載並修改

修改變量定義和刪除-u$User -p$Password，不在命令中使用賬戶密碼，由於咱們前面已經在my.cnf文件中配置了賬戶密碼

```bash

$ cat /script/getmysqlinfo.sh

#!/bin/bash

#Name: MySQLMontior.sh

#From: flashyhl <2015/08/06>

#Action: Zabbix monitoring mysql plug-in

MySQlBin=/usr/bin/mysql

MySQLAdminBin=mysqladmin

Host=172.16.160.162

User=root

Password=Maks.123

if [[ $# == 1 ]];then

case $1 in

Ping)

result=`$MySQLAdminBin -h$Host ping|grep alive|wc -l`

echo $result

;;

Threads)

result=`$MySQLAdminBin -h$Host status|cut -f3 -d":"|cut -f1 -d"Q"`

echo $result

;;

Questions)

result=`$MySQLAdminBin -h$Host status|cut -f4 -d":"|cut -f1 -d"S"`

echo $result

;;

Slowqueries)

result=`$MySQLAdminBin -h$Host status|cut -f5 -d":"|cut -f1 -d"O"`

echo $result

;;

Qps)

result=`$MySQLAdminBin -h$Host status|cut -f9 -d":"`

echo $result

;;

Slave_IO_State)

result=`if [ "$($MySQlBin -h$Host -e "show slave status\G"| grep Slave_IO_Running|awk '{print $2}')" == "Yes" ];then echo 1; else echo 0;fi`

echo $result

;;

Slave_SQL_State)

result=`if [ "$($MySQlBin -h$Host -e "show slave status\G"| grep Slave_SQL_Running|awk '{print $2}')" == "Yes" ];then echo 1; else echo 0;fi`

echo $result

;;

Key_buffer_size)

result=`$MySQlBin -h$Host -e "show variables like 'key_buffer_size';"| grep -v Value |awk '{print $2/1024^2}'`

echo $result

;;

Key_reads)

result=`$MySQlBin -h$Host -e "show status like 'key_reads';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Key_read_requests)

result=`$MySQlBin -h$Host -e "show status like 'key_read_requests';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Key_cache_miss_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'key_reads';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'key_read_requests';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%1.4f\n",$1/$2*100);}'`

echo $result

;;

Key_blocks_used)

result=`$MySQlBin -h$Host -e "show status like 'key_blocks_used';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Key_blocks_unused)

result=`$MySQlBin -h$Host -e "show status like 'key_blocks_unused';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Key_blocks_used_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'key_blocks_used';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'key_blocks_unused';"| grep -v Value |awk '{print $2}')| awk '{if(($1==0) && ($2==0))printf("%1.4f\n",0);else printf("%1.4f\n",$1/($1+$2)*100);}'`

echo $result

;;

Innodb_buffer_pool_size)

result=`$MySQlBin -h$Host -e "show variables like 'innodb_buffer_pool_size';"| grep -v Value |awk '{print $2/1024^2}'`

echo $result

;;

Innodb_log_file_size)

result=`$MySQlBin -h$Host -e "show variables like 'innodb_log_file_size';"| grep -v Value |awk '{print $2/1024^2}'`

echo $result

;;

Innodb_log_buffer_size)

result=`$MySQlBin -h$Host -e "show variables like 'innodb_log_buffer_size';"| grep -v Value |awk '{print $2/1024^2}'`

echo $result

;;

Table_open_cache)

result=`$MySQlBin -h$Host -e "show variables like 'table_open_cache';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Open_tables)

result=`$MySQlBin -h$Host -e "show status like 'open_tables';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Opened_tables)

result=`$MySQlBin -h$Host -e "show status like 'opened_tables';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Open_tables_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'open_tables';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'opened_tables';"| grep -v Value |awk '{print $2}')| awk '{if(($1==0) && ($2==0))printf("%1.4f\n",0);else printf("%1.4f\n",$1/($1+$2)*100);}'`

echo $result

;;

Table_open_cache_used_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'open_tables';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show variables like 'table_open_cache';"| grep -v Value |awk '{print $2}')| awk '{if(($1==0) && ($2==0))printf("%1.4f\n",0);else printf("%1.4f\n",$1/($1+$2)*100);}'`

echo $result

;;

Thread_cache_size)

result=`$MySQlBin -h$Host -e "show variables like 'thread_cache_size';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Threads_cached)

result=`$MySQlBin -h$Host -e "show status like 'Threads_cached';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Threads_connected)

result=`$MySQlBin -h$Host -e "show status like 'Threads_connected';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Threads_created)

result=`$MySQlBin -h$Host -e "show status like 'Threads_created';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Threads_running)

result=`$MySQlBin -h$Host -e "show status like 'Threads_running';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_free_blocks)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_free_blocks';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_free_memory)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_free_memory';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_hits)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_hits';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_inserts)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_inserts';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_lowmem_prunes)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_lowmem_prunes';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_not_cached)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_not_cached';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_queries_in_cache)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_queries_in_cache';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_total_blocks)

result=`$MySQlBin -h$Host -e "show status like 'Qcache_total_blocks';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Qcache_fragment_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'Qcache_free_blocks';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'Qcache_total_blocks';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%1.4f\n",$1/$2*100);}'`

echo $result

;;

Qcache_used_rate)

result=`echo $($MySQlBin -h$Host -e "show variables like 'query_cache_size';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'Qcache_free_memory';"| grep -v Value |awk '{print $2}')| awk '{if($1==0)printf("%1.4f\n",0);else printf("%1.4f\n",($1-$2)/$1*100);}'`

echo $result

;;

Qcache_hits_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'Qcache_hits';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'Qcache_inserts';"| grep -v Value |awk '{print $2}')| awk '{if($1==0)printf("%1.4f\n",0);else printf("%1.4f\n",($1-$2)/$1*100);}'`

echo $result

;;

Query_cache_limit)

result=`$MySQlBin -h$Host -e "show variables like 'query_cache_limit';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Query_cache_min_res_unit)

result=`$MySQlBin -h$Host -e "show variables like 'query_cache_min_res_unit';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Query_cache_size)

result=`$MySQlBin -h$Host -e "show variables like 'query_cache_size';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Sort_merge_passes)

result=`$MySQlBin -h$Host -e "show status like 'Sort_merge_passes';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Sort_range)

result=`$MySQlBin -h$Host -e "show status like 'Sort_range';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Sort_rows)

result=`$MySQlBin -h$Host -e "show status like 'Sort_rows';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Sort_scan)

result=`$MySQlBin -h$Host -e "show status like 'Sort_scan';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Handler_read_first)

result=`$MySQlBin -h$Host -e "show status like 'Handler_read_first';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Handler_read_key)

result=`$MySQlBin -h$Host -e "show status like 'Handler_read_key';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Handler_read_next)

result=`$MySQlBin -h$Host -e "show status like 'Handler_read_next';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Handler_read_prev)

result=`$MySQlBin -h$Host -e "show status like 'Handler_read_prev';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Handler_read_rnd)

result=`$MySQlBin -h$Host -e "show status like 'Handler_read_rnd';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Handler_read_rnd_next)

result=`$MySQlBin -h$Host -e "show status like 'Handler_read_rnd_next';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Com_select)

result=`$MySQlBin -h$Host -e "show status like 'com_select';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Com_insert)

result=`$MySQlBin -h$Host -e "show status like 'com_insert';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Com_insert_select)

result=`$MySQlBin -h$Host -e "show status like 'com_insert_select';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Com_update)

result=`$MySQlBin -h$Host -e "show status like 'com_update';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Com_replace)

result=`$MySQlBin -h$Host -e "show status like 'com_replace';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Com_replace_select)

result=`$MySQlBin -h$Host -e "show status like 'com_replace_select';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Table_scan_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'Handler_read_rnd_next';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'com_select';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%1.4f\n",$1/$2*100);}'`

echo $result

;;

Open_files)

result=`$MySQlBin -h$Host -e "show status like 'open_files';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Open_files_limit)

result=`$MySQlBin -h$Host -e "show variables like 'open_files_limit';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Open_files_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'open_files';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show variables like 'open_files_limit';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%1.4f\n",$1/$2*100);}'`

echo $result

;;

Created_tmp_disk_tables)

result=`$MySQlBin -h$Host -e "show status like 'created_tmp_disk_tables';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Created_tmp_tables)

result=`$MySQlBin -h$Host -e "show status like 'created_tmp_tables';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Created_tmp_disk_tables_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'created_tmp_disk_tables';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'created_tmp_tables';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%1.4f\n",$1/$2*100);}'`

echo $result

;;

Max_connections)

result=`$MySQlBin -h$Host -e "show variables like 'max_connections';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Max_used_connections)

result=`$MySQlBin -h$Host -e "show status like 'Max_used_connections';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Processlist)

result=`$MySQlBin -h$Host -e "show processlist" | grep -v "Id" | wc -l`

echo $result

;;

Max_connections_used_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'Max_used_connections';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show variables like 'max_connections';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%1.4f\n",$1/$2*100);}'`

echo $result

;;

Connection_occupancy_rate)

result=`echo $($MySQlBin -h$Host -e "show status like 'Threads_connected';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show variables like 'max_connections';"| grep -v Value |awk '{print $2}')| awk '{if($2==0)printf("%1.4f\n",0);else printf("%5.4f\n",$1/$2*100);}'`

echo $result

;;

Table_locks_immediate)

result=`$MySQlBin -h$Host -e "show status like 'Table_locks_immediate';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Table_locks_waited)

result=`$MySQlBin -h$Host -e "show status like 'table_locks_waited';"| grep -v Value |awk '{print $2}'`

echo $result

;;

Engine_select)

result=`echo $($MySQlBin -h$Host -e "show status like 'Table_locks_immediate';"| grep -v Value |awk '{print $2}') $($MySQlBin -h$Host -e "show status like 'table_locks_waited';"| grep -v Value | awk '{print $2}') | awk '{if($2==0)printf("%1.4f\n",0);else printf("%5.4f\n",$1/$2*100);}'`

echo $result

;;

echo -e "\033[33mUsage: ./getmysqlinfo {Ping|Threads|Questions|Slowqueries|Qps|Slave_IO_State|Slave_SQL_State|Key_buffer_size|Key_reads|Key_read_requests|Key_cache_miss_rate|Key_blocks_used|Key_blocks_unused|Key_blocks_used_rate|Innodb_buffer_pool_size|Innodb_log_file_size|Innodb_log_buffer_size|Table_open_cache|Open_tables|Opened_tables|Open_tables_rate|Table_open_cache_used_rate|Thread_cache_size|Threads_cached|Threads_connected|Threads_created|Threads_running|Qcache_free_blocks|Qcache_free_memory|Qcache_hits|Qcache_inserts|Qcache_lowmem_prunes|Qcache_not_cached|Qcache_queries_in_cache|Qcache_total_blocks|Qcache_fragment_rate|Qcache_used_rate|Qcache_hits_rate|Query_cache_limit|Query_cache_min_res_unit|Query_cache_size|Sort_merge_passes|Sort_range|Sort_rows|Sort_scan|Handler_read_first|Handler_read_key|Handler_read_next|Handler_read_prev|Handler_read_rnd|Handler_read_rnd_next|Com_select|Com_insert|Com_insert_select|Com_update|Com_replace|Com_replace_select|Table_scan_rate|Open_files|Open_files_limit|Open_files_rate|Created_tmp_disk_tables|Created_tmp_tables|Created_tmp_disk_tables_rate|Max_connections|Max_used_connections|Processlist|Max_connections_used_rate|Table_locks_immediate|Table_locks_waited|Engine_select|Connection_occupancy_rate} \033[0m"

;;

esac

```