Last updated on MAY 04, 2017
Applies to:MySQL Server - Version 5.7 and later
Information in this document applies to any platform.
Multi-threaded slaves are very slow, can't catch up the master.
No work load on on slave server.
No warnings or errors in the MySQL error log.
In the innodb status report, transaction section, showing slave workers are in "ACTIVE (PREPARED)" status:
These thread ids can be mapped to the Slave workers.
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