nexus/sreweekly/markdown/71/01-how-we-upgraded-a-22tb-mysql-cluster-from-5-6-to-5-7-in-9-months.md

How we Upgraded a 22TB MySQL Cluster from 5.6 to 5.7 (in 9 months)

• 期号: SRE Weekly Issue #71（2017-05-07）
• 作者: —
• 链接: https://thoughts.t37.net/how-we-upgraded-a-22tb-mysql-cluster-from-5-6-to-5-7-in-9-months-b09211af57ba

简介

The interesting bit in this story is that upgrading to 5.7 requires a full table rewrite (ALTER TABLE) for any table that has time-related columns. Their initial test-run took months and still hadn’t finished.

正文

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