[记录]Zabbix3.4配置监控Oracle12c的存活状态和表空间使用率

Zabbix3.4配置监控Oracle的存活状态和表空间使用率
1.安装zabbix3.4 agent：
# rpm -ivh http://repo.zabbix.com/zabbix/3.4/rhel/7/x86_64/zabbix-release-3.4-2.el7.noarch.rpm
# yum install zabbix-agent
# service zabbix-agent start
2.配置zabbix_agentd.conf
[root@centos zabbix]# cat zabbix_agentd.conf 
PidFile=/var/run/zabbix/zabbix_agentd.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=0
Server=server_ip or proxy_ip
Hostname=agent_IP
Include=/etc/zabbix/zabbix_agentd.d/*.conf
UnsafeUserParameters=1
AllowRoot=1
3.添加建立oracle的配置文件：
[root@centos scripts]# cat ../zabbix_agentd.d/zabbix_oracle.conf 
UserParameter=oracle.active,/etc/zabbix/scripts/oracle_status active
UserParameter=ora.tab.discovery,/etc/zabbix/scripts/oracle_discovery.sh
UserParameter=tablespace[*],/etc/zabbix/scripts/oracle_checktablespace.sh $1 $2
[root@centos scripts]#service zabbix-agent restart
4.创建zabbix监控oracle的用户和密码并授权：
CREATE USER ZABBIX IDENTIFIED BY xxx DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP;
GRANT CONNECT TO ZABBIX;
GRANT RESOURCE TO ZABBIX;
ALTER USER ZABBIX DEFAULT ROLE ALL;
GRANT SELECT ANY TABLE TO ZABBIX;
GRANT CREATE SESSION TO ZABBIX;
GRANT SELECT ANY DICTIONARY TO ZABBIX;
GRANT UNLIMITED TABLESPACE TO ZABBIX;
GRANT SELECT ANY DICTIONARY TO ZABBIX;
5.编写监控oracle存活状态的脚本：
[root@centos scripts]# cat oracle_status 
#!/bin/bash

function active() { 
ps -ef | grep pmon | grep -v grep | awk ‘{print $NF}‘ > /dev/null
if [ $? -eq 0 ]; then
echo 1
else
echo 0
fi
}

if [ $# -ne 1 ]; then
echo "the args is error."
else
$1
fi
6.编写监控oracle表空间的脚本(三个脚本)：
1)获取表空间状态输出到/tmp/oracle_tablespace.log文件。这是一个定时脚本。
*/1 * * * * oracle /bin/bash /etc/zabbix/scripts/oracle_tablespace.sh >> /tmp/oracle_tablespace_cron.log 2>&1
[root@centos scripts]# cat oracle_tablespace.sh 
#!/bin/bash

#function:
#获取到oracle数据库中的tablespace列表，并输出到/tmp/oracle_tablespace.log日志中去,在crontab中设置每一分钟执行一次.

source /home/oracle/.bash_profile

sqlplus -s zabbix/xxx> /tmp/oracle_tablespace.log<<EOF
set linesize 140 pagesize 10000
col "Status" for a10
col "Name" for a25
col "Type" for a10
col "Extent" for a15
SELECT d.status "Status", d.tablespace_name "Name", d.contents "Type", d.extent_management "Extent",
NVL(a.bytes, 0) "Size (M)",
NVL(a.bytes - NVL(f.bytes, 0), 0) "Used (M)",
round(NVL((a.bytes - NVL(f.bytes, 0)) / a.bytes * 100, 0),2) "Used %"
FROM sys.dba_tablespaces d,
(select tablespace_name, sum(bytes) bytes from dba_data_files
group by tablespace_name) a, (select tablespace_name, sum(bytes) bytes from dba_free_space group by tablespace_name) f WHERE
d.tablespace_name = a.tablespace_name(+) AND d.tablespace_name = f.tablespace_name(+) AND d.tablespace_name not in (‘SYSAUX‘,‘SYSTEM‘) AND NOT
(d.extent_management like ‘LOCAL‘ AND d.contents like ‘TEMPORARY‘)
UNION ALL
SELECT d.status "Status", d.tablespace_name "Name", d.contents "Type", d.extent_management "Extent",
NVL(a.bytes, 0) "Size (M)",
NVL(t.bytes,0) "Used (M)",
round(NVL(t.bytes / a.bytes * 100, 0),2) "Used %" FROM sys.dba_tablespaces d,
(select tablespace_name, sum(bytes) bytes from dba_temp_files group by tablespace_name) a, (select
tablespace_name, sum(bytes_cached) bytes from v\$temp_extent_pool group by tablespace_name) t WHERE
d.tablespace_name = a.tablespace_name(+) AND d.tablespace_name = t.tablespace_name(+) AND
d.extent_management like ‘LOCAL‘ AND d.contents like ‘TEMPORARY‘
ORDER BY 7;
EOF

sed -i ‘$d‘ /tmp/oracle_tablespace.log
sed -i ‘$d‘ /tmp/oracle_tablespace.log
sed -i ‘s/,//g‘ /tmp/oracle_tablespace.log
2)从/tmp/oracle_tablespace.log文件中取出Name那一列，并进行JSON格式化输出。
[root@centos scripts]# cat oracle_discovery.sh 
#!/bin/bash

#function:
#这个脚本的功能是从/tmp/oracle_tablespace.log文件中取出Name那一列，并进行JSON格式化输出(因为zabbix的自动发现功能获取的数据类型是JSON格式的)

TABLESPACE=`cat /tmp/oracle_tablespace.log |awk ‘{print$2}‘|awk ‘NR>3{print}‘`
COUNT=`echo "$TABLESPACE" |wc -l`
INDEX=0
echo ‘{"data":[‘
echo "$TABLESPACE" | while read LINE; do
echo -n ‘{"{#TABLENAME}":"‘$LINE‘"}‘
INDEX=`expr $INDEX + 1`
if [ $INDEX -lt $COUNT ]; then
echo ‘,‘
fi
done
echo ‘]}‘
3)这是zabbix调用获取值的脚本:
[root@centos scripts]# cat oracle_checktablespace.sh 
#!/bin/bash

#function:
#获取/tmp/oracle_tablespace.log中的最后三列数据,其中maxmb和used取出的值是M，根据需要转换单位，方便zabbix取值.

EQ_DATA="$2"
ZBX_REQ_DATA_TAB="$1"
SOURCE_DATA=/tmp/oracle_tablespace.log
case $2 in
maxmb)
grep -wE "$ZBX_REQ_DATA_TAB" $SOURCE_DATA | awk ‘{print $5}‘;;
used)
grep -wE "$ZBX_REQ_DATA_TAB" $SOURCE_DATA | awk ‘{print $6}‘;;
autopercent)
grep -wE "$ZBX_REQ_DATA_TAB" $SOURCE_DATA | awk ‘{print $7}‘;;
*)
echo $ERROR_WRONG_PARAM
exit 1;;
esac
exit 0