zabbix删除历史记录

Zabbix历史数据清理

 

1、统计数据库中每个表所占的空间:

SELECT table_name AS "Tables",round(((data_length + index_length) / 1024 / 1024), 2) "Size in MB" from information_schema.TABLES where table_schema = 'zabbix' ORDER BY (data_length + index_length) DESC;

2、清理zabbix一周之前的历史数据:

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!/bin/bash
User="zabbix"
Passwd="123456"
Date=`date -d $(date -d "-365 day" +%Y%m%d) +%s` #取365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 history_text WHERE 'clock' < $Date;
optimize table history_text;
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;
"

3、添加到系统计划任务:

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#remove the zabbix mysql data before 365 day's ago
0 3 * * 0 /usr/local/script/clearzabbix.sh > /usr/local/script/clearzabbix.log

另:可以使用truncate命令直接清空数据库:

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truncate table history;
truncate table history_uint;
truncate table history_str;
truncate table history_text;
truncate table trends;
truncate table trends_uint;
truncate table events;

如果想要删除表的所有数据,truncate语句要比 delete 语句快

因为 truncate 删除了表,然后根据表结构重新建立它,而 delete 删除的是记录,并没有尝试去修改表。

不过truncate命令虽然快,却不像delete命令那样对事务处理是安全的。

因此,如果我们想要执行truncate删除的表正在进行事务处理,这个命令就会产生退出并产生错误信息。

原文地址:https://www.cnblogs.com/liulj0713/p/10196321.html