重要!!!MySQL 9.0存在重大BUG!!

7/11日开源数据库软件服务商percona发布重要警告,最新的mysql版本存在重大bug,原文如下

Do Not Upgrade to Any Version of MySQL After 8.0.37

Warning!

Recently, Jean-François Gagné opened a bug on bug.mysql.com #115517; unfortunately, the bug is now private.

However, the bug looks quite serious. We at Percona have performed several tests and opened the issue PS-9306 to investigate the problem.

In short, what happens is that if you create a large number of tables, like 10000, the mysql daemon will crash at restart.

Currently, we have identified that the following versions are affected:

MySQL 8.0.38

MySQL 8.4.1

MySQL 9.0.0

We have not yet identified the root cause or a workaround. As such, we suggest that all users do not adopt any of the MySQL versions mentioned until a fix is released.

If you want to test it yourself, just install one of the mentioned MySQL versions and run a script like the one used in our issue PS-9306.

原文链接:https://www.percona.com/blog/do-not-upgrade-to-any-version-of-mysql-after-8-0-37/#

简而言之

如果表的数量超过10000个,mysql可能会在重启时崩溃,该bug在MySQL 8.0.38

MySQL 8.4.1 MySQL 9.0.0 三个版本被确认。

重要提醒!生产系统请不要升级到以上版本!

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