Home Database Mysql Tutorial mysql技巧:提高插入数据(添加记录)的速度

mysql技巧:提高插入数据(添加记录)的速度

Jun 07, 2016 pm 04:27 PM
mysql Skill improve insert data Add to Record speed question

问题描述: 普通台式机,采集数据,表中已经有1000万数据量。 采集回来的数据插入表中的时候很慢,每条约100毫秒。 解决方法: 1、加大mysql配置中的bulk_insert_buffer_size,这个参数默认为8M bulk_insert_buffer_size=100M 2、改写所有insert语句为insert

问题描述:

普通台式机,采集数据,表中已经有>1000万数据量。

采集回来的数据插入表中的时候很慢,每条约100毫秒。

解决方法:

1、加大mysql配置中的bulk_insert_buffer_size,这个参数默认为8M

bulk_insert_buffer_size=100M

2、改写所有insert语句为insert delayed

这个insert delayed不同之处在于:立即返回结果,后台进行处理插入。

还有一个技巧是在一跳insert中插入多条数据,类似insert into tablename values('xxx','xxx'),('yyy','yyy'),('zzz','zzz')...;但是在我采集程序中改sql比较麻烦,故未采用

程序员之家小编提醒:

说实话一般主要用于数据的采集入库操作,成熟的cms不建议修改,dedecms是由于本人的系统设计问题,建议使用商业版或自行建立索引等,现在大数据首选帝国cms或phpcms。

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