What are the characteristics of InnoDB row locks in mysql
This article mainly talks about "what are the characteristics of InnoDB row locks in mysql". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what are the characteristics of InnoDB row locks in mysql?"
1. InnoDB's row locks are added for indexes, not records. And the index cannot be invalidated, otherwise it will be upgraded from a row lock to a table lock.
2. When the table data is updated in batch, the row lock will be upgraded to the table lock.
Example
Show status like 'innodb_row_lock%'; mysql > show status like' innodb_row_lock%' +-- +-+ | Variable_name | Value | +-+-+ | Innodb_row_lock_current_waits | 0 | Innodb_row_lock_time | | 312907 | | Innodb_row_lock_time_avg | 31290 | | Innodb_row_lock_time_max | 51355 | | Innodb_row_lock_waits | 10 | +-+-+ here | I believe that you have a deeper understanding of "what are the characteristics of InnoDB row locks in mysql?" you might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!
