My Oracle Support Banner

How Can a Timed Out Semi-Sync Slave Come Back? (Doc ID 1634184.1)

Last updated on MARCH 09, 2017

Applies to:

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


A slave which does not respond within rpl_semi_sync_master_timeout milliseconds is marked as timed out and goes into asynchronous mode. This document describes when such a slave comes back to synchronous mode again.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 1. The master is restarted.
 2. Semi-synchronous replication is re-enabled.
 3. A new ACK is returned from the slave.

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.