【www.bbyears.com--linux】
随着时间增长监控的机器越来越多，其入库数据量也会越来越大，当数据量到一定时候的时候其反映速度会比较慢；于是我们就需要清理一些历史数据。
#!/bin/bash
User="root"
Passwd="xxxxxx"
HIS_Date=`date -d $(date -d "-90 day" +%Y%m%d) +%s` #取90天之前的时间戳
TRE_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" < $HIS_Date;
optimize table history;
DELETE FROM history_str WHERE "clock" < $HIS_Date;
optimize table history_str;
DELETE FROM history_uint WHERE "clock" < $HIS_Date;
optimize table history_uint;
DELETE FROM trends WHERE "clock" < $TRE_Date;
optimize table trends;
DELETE FROM trends_uint WHERE "clock" < $TRE_Date;
optimize table trends_uint;
DELETE FROM events WHERE "clock" < $TRE_Date;
optimize table events;
PS：history是详细历史数据表，trends是图形趋势表；可以根据自己需求设置保留时间。