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使用zabbix如何自动清理30天前的数据
source link: https://www.linuxprobe.com/zabbix-del-30-data.html
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zabbix属于一个细度化的监控工具，其入库数据随着细度的增加相应的入库数据量也会较大，当数据量到一定时候的时候其反映速度会比较慢，尽管其监控服务在配置时可以指定数据的保存周期， 但是了解下通过直接操作数据库进行数据删除还是有必要的。
通过数据库进行删除的脚本如下：
#!/bin/bash
User="root"
Passwd="361way"
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;
"
注：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。
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