通过Grafana绘制MySQL表行数增长情况

Posted 2022-04-10 我的二狗呢

mysql的行的数据和体积等指标，我们可以通过定时任务脚本去采集information_schema.tables然后存到库里面。

最终效果如下：

看板对于的sql如下：

select 
rds_name as "RDS实例",
table_schema as "库名",
table_name as "表名",
table_rows as "当前行数",
total_size as "当前表总体积",
max(table_rows) - min(table_rows) as "近7日增加行数"
from rds_table_stats 
WHERE
 date(collect_date) IN (  DATE_ADD(curdate(),  interval -7 day), date_format(curdate(),%Y-%m-%d)) 
 group by rds_name, table_schema ,table_name
 order by max(table_rows) - min(table_rows)  desc LIMIT 20
;