MySQL Replication Falling Behind (Lag, Delay)
(Doc ID 2256128.1)
Last updated on NOVEMBER 13, 2024
Applies to:
MySQL Server - Version 5.6 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.
On a Replication scenario, the replica server is reported as being lagging or falling behind the source, being the usual symptom the existence of "seconds_behind_source" different from zero when issuing the command:
Cause
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