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Converting Asynchronous Replication into Group Replication (Doc ID 2453078.1)

Last updated on FEBRUARY 27, 2020

Applies to:

MySQL Server - Version 5.7 and later
Information in this document applies to any platform.

Purpose

 This article answers common questions that can appear when existing replication topology needs to be used to create a new Group Replication group.

Questions and Answers

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In this Document
Purpose
Questions and Answers
 Q1. Can two instances with replication channel running between them be added to a group?
 Q2. Can an old slave be added to the group, if it was behind master and don't have some transactions compared to nodes that are already in the group?
 Q3. What can be done, if old master don't have binary logs with missing transactions?
 Q4. What can be done if instance that needs to be included in the group has additional transactions, compared to other instances that are already in the group?
 Q5. I have old master with extra transactions that I want to add to the group by creating temporary asynchronous replication channel to the group. How should this be done?
References


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