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Why Seconds_Behind_Source Shows Huge Differences Between Readings (Doc ID 2585417.1)

Last updated on DECEMBER 07, 2021

Applies to:

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


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 for a complete list of those changes, and in which minor versions it happened.

MySQL Replica shows variable "seconds_behind_source" values, form 0 to 36 hours and back to 0 several seconds between readings, and why this value varies so much in a very short time.


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