Replication Breaks With "Slave I/O: Unexpected Master's Heartbeat Data"

(Doc ID 2398384.1)

Last updated on MAY 21, 2018

Applies to:

MySQL Server - Version 5.6 and later
Information in this document applies to any platform.


Replication breaks and following error is logged:


Replication channel is steady, no operation happening on the master during the MASTER_HEARTBEAT_PERIOD configured.


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