一、linux环境下监控MySQL
Zabbix Server自带了MySQL插件来监控mysql数据库的模板,只需要配置好agent客户端,然后在web端给主机增加模板就行了
监控项目:
Com_update: mysql执行的更新个数
Com_select: mysql执行的查询个数
Com_insert: mysql执行插入的个数
Com_delete: 执行删除的个数
Com_rollback: 执行回滚的操作个数
Bytes_received: 接受的字节数
Bytes_sent: 发送的字节数
Slow_queries: 慢查询语句的个数
Com_commit: 确认的事物个数
Com_begin: 开始的事物个数
Uptime: 服务器已启动的秒数
Questions: 客户端发送到服务器的语句个数
监控模板下载地址:
脚本下载地址:
1)创建zabbix链接MySQL的用户名,密码并授予权限。
mysql> grant all on *.* to zabbix@'localhost'identified by "123456”;mysql> flush privileges;
2)在zabbix_agent服务目录下创建 .my.cnf 连接文件
cd /usr/local/zabbix/etc/vim .my.cnf[client]user=zabbixpassword=123456
注意:
如果在数据库grant授权时,针对的是localhost,这个.my.cnf里面就不用加host参数了【如上配置】但如果grant授权时针对的是本机的ip(如192.168.1.25),那么在.my.cnf文件里就要加上host参数进行指定:host=192.168.1.25
3)配置MySQL的key文件
这个可以从zabbix安装时的解压包里拷贝过来:
cp /usr/local/src/zabbix3.0.3/conf/zabbix_agentd/userparameter_mysql.conf /usr/local/zabbix/etc/zabbix_agentd.conf.d/
4)替换zabbix安装路径,注意如果MySQL没配置好环境变量可能找不到MySQL命令,可以用MySQL全路径
看到类似 HOME=/var/lib/zabbix 的路径设置,把路径全都替换为 /usr/local/zabbix/etc/,也就是上面的.my.cnf文件所在的目录路径。
cd /usr/local/zabbix/etc/zabbix_agentd.conf.d/vim userparameter_mysql.conf# For all the following commands HOME should be set to the directory that has .my.cnf file with password information.# Flexible parameter to grab global variables. On the frontend side, use keys like mysql.status[Com_insert].# Key syntax is mysql.status[variable].UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | HOME=/usr/local/zabbix/etc/ mysql -N | awk '{print $$2}'# Flexible parameter to determine database or table size. On the frontend side, use keys like mysql.size[zabbix,history,data].# Key syntax is mysql.size[, ].# Database may be a database name or "all". Default is "all".# Table may be a table name or "all". Default is "all".# Type may be "data", "index", "free" or "both". Both is a sum of data and index. Default is "both".# Database is mandatory if a table is specified. Type may be specified always.# Returns value in bytes.# 'sum' on data_length or index_length alone needed when we are getting this information for whole database instead of a single tableUserParameter=mysql.size[*],bash -c 'echo "select sum($(case "$3" in both|"") echo "data_length+index_length";; data|index) echo "$3_length";; free) echo "data_free";; esac)) from information_schema.tables$([[ "$1" = "all" || ! "$1" ]] || echo " where table_schema=\"$1\"")$([[ "$2" = "all" || ! "$2" ]] || echo "and table_name=\"$2\"");" | HOME=/usr/local/zabbix/etc/ mysql -N'UserParameter=mysql.ping,HOME=/usr/local/zabbix/etc/ mysqladmin ping | grep -c aliveUserParameter=mysql.version,mysql -V%s#/var/lib/zabbix#/usr/local/zabbix/etc/# #用命令替换 ,
也可以用这个shell脚本监控,包括主从监控:
### MySQL DB InfomationUserParameter=mysql.status[*],echo"show global status where Variable_name='$1';"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|awk '{print $$2}'UserParameter=mysql.variables[*],echo"show global variables where Variable_name='$1';"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|awk '{print $$2}'UserParameter=mysql.ping,mysqladmin--defaults-file=/usr/local/zabbix/etc/.my.cnf ping|grep -c aliveUserParameter=mysql.version,echo"select version();"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N #### MySQL Master InformationUserParameter=mysql.master.Slave_count,echo"show slave hosts;"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|wc -lUserParameter=mysql.master.Binlog_file,echo"show master status;"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|awk '{print $1}'|awk -F.'{print $1}'UserParameter=mysql.master.Binlog_number,echo"show master status;"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|awk '{print $1}'|awk -F.'{print $2}'UserParameter=mysql.master.Binlog_position,echo"show master status;"|mysql --defaults-file=/usr/local/zabbix/etc/.my.cnf-N|awk '{print $2}'UserParameter=mysql.master.Binlog_count,echo"show binary logs;"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|wc -lUserParameter=mysql.master.Binlog_total_size,echo"show binary logs;"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf -N|awk '{sum+=$NF}END{print sum}' #### MySQL Slave InformationUserParameter=mysql.slave.Seconds_Behind_Master,echo"show slave status\G"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf|grep "Seconds_Behind_Master"|awk'{print $2}'UserParameter=mysql.slave.Slave_IO_Running,echo"show slave status\G"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf|grep"Slave_IO_Running"|awk '{print $2}'UserParameter=mysql.slave.Slave_SQL_Running,echo"show slave status\G"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf|grep"Slave_SQL_Running"|awk '{print $2}'UserParameter=mysql.slave.Relay_Log_Pos,echo"show slave status\G"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf|grep"Relay_Log_Pos"|awk '{print $2}'UserParameter=mysql.slave.Exec_Master_Log_Pos,echo"show slave status\G"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf|grep"Exec_Master_Log_Pos"|awk '{print $2}'UserParameter=mysql.slave.Read_Master_Log_Pos,echo"show slave status\G"|mysql--defaults-file=/usr/local/zabbix/etc/.my.cnf|grep"Read_Master_Log_Pos"|awk '{print $2}'
5)修改zabbix_agentd.conf配置文件,开启额外加载,就是去掉前面的#号
vim zabbix_agentd.confInclude=/usr/local/zabbix/etc/zabbix_agentd.conf.d/
6)重启zabbix_agentd服务
/etc/init.d/zabbix_agentd restart
7)测试看能否获取到数据
# zabbix_get -s 127.0.0.1 -p 10050 -k mysql.status[Com_select]200661
8)登陆zabbix监控界面,在“配置”里为主机添加模板,完成监控。
二、windows下的MySQL监控
要想在Windows上取得MySQL的状态数据,可以用vbs脚本运行mysql命令
1)在d:\Zabbix\Scripts\目录下新建两个脚本文件内容如下:
mysql_ping.vbs
Set objFS =CreateObject("Scripting.FileSystemObject")Set objArgs = WScript.Argumentsstr1 = getCommandOutput("D:\SOFT_PHP_PACKAGE\mysql\bin\mysqladmin-ucactiuser -pcactiuser ping") //修改对应数据库路径,用户名和密码 If Instr(str1,"alive") > 0ThenWScript.Echo 1ElseWScript.Echo 0End If Function getCommandOutput(theCommand) Dim objShell, objCmdExecSet objShell =CreateObject("WScript.Shell")Set objCmdExec = objshell.exec(thecommand)getCommandOutput =objCmdExec.StdOut.ReadAllend Function
MYSQL-status.vbs
Set objFS = CreateObject("Scripting.FileSystemObject")Set objArgs = WScript.Argumentsstr1 = getCommandOutput("D:\SOFT_PHP_PACKAGE\mysql\bin\mysqladmin-u cactiuser -pcactiuser extended-status") //修改对应数据库路径,用户名和密码Arg = objArgs(0)str2 = Split(str1,"|") For i = LBound(str2) to UBound(str2) If Trim(str2(i)) = Arg Then WScript.Echo TRIM(str2(i+1))Exit ForEnd Ifnext Function getCommandOutput(theCommand) Dim objShell, objCmdExecSet objShell =CreateObject("WScript.Shell")Set objCmdExec = objshell.exec(thecommand)getCommandOutput =objCmdExec.StdOut.ReadAll end Function
2)修改windows上的zabbix_agentd.comf文件,设置key值。在UserParameter下面加两句;
UserParameter=mysql.status[*], cscript/nologo d:\Zabbix\Scripts\MySQL_Ext-Status_Script.vbs $1 UserParameter=mysql.ping, cscript /nologo d:\Zabbix\Scripts\MySql_Ping.vbs
3)重启zabbix_agentd,并给主机添加MySQL模版,查看items状态。