#!/bin/bash
User="xxxx"
Passwd="xxxx"
Date=`date -d $(date -d "-30 day" +%Y%m%d) +%s` #取30天之前的时间戳
$(which mysql) -u${User} -p${Passwd} -e "
use zabbix;
DELETE FROM history WHERE 'clock' < $Date;
optimize table history;
DELETE FROM history_str WHERE 'clock' < $Date;
optimize table history_str;
DELETE FROM history_uint WHERE 'clock' < $Date;
optimize table history_uint;
DELETE FROM trends WHERE 'clock' < $Date;
optimize table trends;
DELETE FROM trends_uint WHERE 'clock' < $Date;
optimize table trends_uint;
DELETE FROM events WHERE 'clock' < $Date;
optimize table events;
"
其中histroy是详细的历史数据,trends是图表趋势数据。一般情况下,根据我的自定义,会将histroy数据保留7天,trend数据保留365天。
方法二:不保留历史数据快速
一,备份除历史数据的数据库表
mysqldump -uroot -p'yourpassword' zabbix --ignore-table=zabbix.history_uint --ignore-table=zabbix.history --ignore-table=zabbix.trends_uint -ignore-table=zabbix.trends --ignore-table=zabbix.events --ignore-table=zabbix.history_str >/data/backup20150626.sql
二,新建数据库
create database zabbix2 character set utf8;
GRANT ALL PRIVILEGES ON zabbix2.* TO 'zabbix'@'localhost' IDENTIFIED BY 'yourpassword';
这里是建立的zabbix2数据库,名字可以随意取
三,导入原架构和新数据
mysql -uroot -p'yourpassword' zabbix2 < /root/zabbix-2.4.2/database/mysql/schema.sql
mysql -uroot -p'yourpassword' zabbix2 < /root/zabbix-2.4.2/database/mysql/images.sql
mysql -uroot -p'yourpassword' zabbix2 < /root/zabbix-2.4.2/database/mysql/data.sql
mysql -uroot -p'yourpassword' zabbix2 < /data/backup20150626.sql
如果开始没有剔除上面忽略的4个表,这里上面三行就不需要了。
四,修改zabbix_server连接数据库配置文件
grep -i DBName /usr/local/zabbix/etc/zabbix_server.conf
#DBName=zabbix
DBName=zabbix2
五,修改zabbix站点zabbix.conf配置文件
grep -i database /var/www/html/conf/zabbix.conf.php
$DB['DATABASE'] = 'zabbix2';
// SCHEMA is relevant only for IBM_DB2 database
六,重启服务
service zabbix_server restart
service mysqld restart(不重启也可)