mysql 临时表 with_【MySQL】【翻译】 MySQL 5.7 的内部临时表新特性

【MySQL】【翻译】MySQL Internal Temporary Tables in MySQL 5.7(MySQL 5.7 内部临时表)

翻译:张锐志

In this blog post, I investigate a case of spiking InnoDB Rows inserted in the absence of a write query, and find internal temporary tables to be the culprit.

本文中研究了在没有写查询的情况下,InnoDB行插入却因内部临时表的问题发生性能尖刺的情形。

Recently I was investigating an interesting case for a customer. We could see the regular spikes on a graph depicting “InnoDB rows inserted” metric (jumping from 1K/sec to 6K/sec), however we were not able to correlate those spikes with other activity. The innodb_row_inserted graph (picture from PMM demo) looked similar to this (but on a much larger scale):

事情发生在我研究一个客户的案例时,在”InnoDB行插入“指标图上,发现了从1k行每秒激增到6K行每秒的尖刺,但却无法和其他活动或者现象连接起来,PMM监控图形上也有同样的反映。

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