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Upgrade master-master replication
Posted by: Ben Klauke
Date: August 20, 2018 05:34AM

Hi all,

We'd like to use a row-based master-master replication scenario with MySQL 8.0 using GTIDs.

I'm not pretty sure how to perform MySQL upgrades in our case. After reading the documentation, I think these steps might work, but maybe I mixed something up:

1) stop first master and perform the following steps on it

2) replace MySQL binaries

3) start server with --skip-networking and --skip-slave-start options

4) execute SET sql_log_bin = 0

5) run mysql_upgrade

6) execute SET sql_log_bin = 1

7) repeat steps 1 to 6 for second master

8) restart both masters without --skip-networking and --skip-slave-start options

Please tell me if my planned proceeding is right.

Thanks so much for your help.

All the best,

Ben

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