Comments on: MySQL Recipes: Promoting a Slave to Master or Changing Masters

By: Doug

Doug — Thu, 09 Feb 2012 18:08:55 +0000

Do you need to change the log files? My master has

log-bin=mysql-bin

and my slave has

relay-log=server-relay-bin

Do I comment out the relay-log and add log-bin?

By: Sam

Sam — Fri, 09 Dec 2011 18:13:53 +0000

On S2 you show ‘change master’ followed by a ‘reset slave’ which would obliterate the ‘change master’ setting, no? I could be wrong.

There is no mention of making sure binary logging is enabled on the slave that becomes the master.

By: Daniël van Eeden

Daniël van Eeden — Fri, 06 May 2011 14:10:59 +0000

CHANGE MASTER TO MASTER_HOST=”; won’t work with 5.5 and newer.

By: Gary Smith

Gary Smith — Mon, 31 Jan 2011 20:12:55 +0000

The promote slave is only pasrtially correct. If the end point slave is using a non-standard port to connect with, the reset slave will indeed reset the slave, but will also reset it back to the default port, which will cause the end point slave to fail to connect. The solution is single, stop slave, reset slave, change master…, start slave. It’s an extra step.

Otherwise, the steps are on the money (good simple workup).

By: Rodolfo

Rodolfo — Thu, 19 Aug 2010 09:19:58 +0000

Here's a link where I explains M->S1->S2 replication in spanish (more like a cheat sheet). Replicación Maestro->Esclavo1->Esclavo2 en mySQL

By: links for 2008-07-01 | Zero / Love

links for 2008-07-01 | Zero / Love — Tue, 01 Jul 2008 05:34:18 +0000

[...] MySQL Recipes: Promoting a Slave to Master or Changing Masters (tags: howto database) [...]