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Replica Performance Too Slow With Row Based Events For Table Without Primary Key (Doc ID 2271864.1)

Last updated on JUNE 04, 2021

Applies to:

MySQL Server - Version 5.5 and later
MySQL Cluster - Version 7.2 and later
Information in this document applies to any platform.

Symptoms

Disclaimer: Starting from v8.0, some terms have been deprecated. Older releases will only use the deprecated terminology, and new releases will only use new terminology. Please see https://dev.mysql.com/doc/mysqld-version-reference/en/ for a complete list of those changes, and in which minor versions it happened.

The replica SQL thread cannot keep up while processing row based events from the source's binary log. For example:

 

Changes

Several changes may cause this to start happening, for example:

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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