0.概述

zabbix是一款极其强大的开源监控工具，下面我分享下zabbix如何监控表空间，跟着这个思路，监控其他项都是类似操作。

前提条件是你已经有了zabbix server和zabbix agent，且zabbix agent与oracle数据库运行在一台机器上面。

1.在agent上面准备脚本

a.定义查表空间使用率的脚本

/home/oracle/get_tablespace_usage.sh

#!/bin/bash
# get tablespace usage
source ~/.bash_profile
function check {
sqlplus -S "/ as sysdba" <<  EOF
set linesize 200 pagesize 200
set feedback off heading off
spool /tmp/tablespace.log
select tablespace_name,round(used_percent) used_percent from dba_tablespace_usage_metrics;
spool off
quit
EOF
};
check &> /dev/null
errors=`grep ERROR /tmp/tablespace.log | wc -l`
if [ "$errors" -gt 0 ]; then
    echo "" > /tmp/tablespace.log
fi

chown oracle: get_tablespace_usage.sh

chmod 755 get_tablespace_usage.sh

b.定义表空间自动发现的脚本

/etc/zabbix/scripts/discovery_tablespace.sh

#!/bin/bash
# zabbix auto discovery oracle tablespace
tablespaces=(`cat /tmp/tablespace.log | awk '{print $1}' | grep -v "^$"`)
length=${#tablespaces[@]}
printf "{\n"
printf '\t'"\"data\":["
for ((i=0;i<$length;i++))
do
    printf "\n\t\t{"
    printf "\"{#TABLESPACE_NAME}\":\"${tablespaces[$i]}\"}"
    if [ $i -lt $[$length-1] ];then
        printf ","
    fi
done
    printf "\n\t]\n"
printf "}\n"

chmod 755/etc/zabbix/scripts/discovery_tablespace.sh

c.定义表空间监控项脚本

/etc/zabbix/scripts/tablespace_check.sh

#!/bin/bash
# oracle tablespace check
TABLESPACE_NAME=$1
grep "\b$TABLESPACE_NAME\b" /tmp/tablespace.log | awk '{print $2}'

chmod 755/etc/zabbix/scripts/tablespace_check.sh

2.将脚本a放入crontab里面

su - oracle

crontab -e

*/5 * * * * /home/oracle/get_tablespace_usage.sh

执行的结果查看/tmp/tablespace.log，第一列是表空间的名字，第二列是对应的表空间使用率

EXAMPLE                                   2                                                                                                                                                             
SYSAUX                                    3                                                                                                                                                             
SYSTEM                                    5                                                                                                                                                             
TBS01                                    85                                                                                                                                                             
TEMP                                      0                                                                                                                                                             
UNDOTBS1                                  0                                                                                                                                                             
USERS                                     1

3.编辑agent参数

vi /etc/zabbix/zabbix_agentd.d/userparameter_oracle.conf
# tablespace usage
UserParameter=discovery.tablespace,/etc/zabbix/scripts/discovery_tablespace.sh
UserParameter=tablespace.check.[*],/etc/zabbix/scripts/tablespace_check.sh $1

4.在zabbix web界面中设置相关选项

a.创建模板，模板名字随便起，这里我定义了一个宏

b.创建自动发现规则

c.创建监控项原型

d.创建触发器类型

e.创建图形原型

5.测试

我将一个表空间创建表，并插入数据，使其超过80%，看其是否报警

测试通过！