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Re: Need more detail about index-record lock
Posted by: Shawn Green
Date: February 17, 2018 02:22PM

Your second transaction is waiting for your first transaction to COMMIT or ROLLBACK so that it can also have access to the supremum page for PK that table.

You are competing for the same "end" of the table.

It's a complicated topic but here are some resources to get you started.
https://dev.mysql.com/doc/refman/5.7/en/innodb-locks-set.html
https://dev.mysql.com/doc/refman/5.7/en/innodb-next-key-locking.html

Yours,
--
Shawn Green
MySQL Senior Principal Technical Support Engineer
Oracle USA, Inc. - Integrated Cloud Applications & Platform Services
Office: Blountville, TN

Become certified in MySQL! Visit https://www.mysql.com/certification/ for details.

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Re: Need more detail about index-record lock
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February 17, 2018 02:22PM


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