Stefan:
Thank you very much, I got the point. I'll make some tests with the
'log-slave-updates' parameter, I think if the master can log the updates
made from any slave, then it can propagate the changes to the others.
Regards
From: Stefan Kuhn [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: rubn ruvalcaba [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: Replication
Date: Wed, 3 Dec 2003 18:01:39 +0100
Am Wednesday 03 December 2003 18:21 schrieb rubn ruvalcaba:
You guys are right, as Cuck said I need each machine acts as server and
slave, I did it with two servers in a circular replication and works
pretty
fine, but when add a third machine, there comes the problems, because
the
central server must be the master (no problem) and the slave of two
servers
(here is the problem).
If you want to do a circular replication, it needs to be like this:
A is slave of B
B is slave of C
C is slave of A
Important: You need to set log-slave-updates in my.cnf, so that B logs what
it
gets from C and A gets it then from B.
I have such a configuration in production use and all works fine.
Stefan
P. S: Note your two server configuration is just a special case of this.
From: Lloyd Kvam [EMAIL PROTECTED]
To: Chuck Gadd [EMAIL PROTECTED]
CC: rubn ruvalcaba [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: Replication
Date: Wed, 03 Dec 2003 09:59:29 -0500
You can setup a circular replication stream. Make sure that the
replicated data gets written to the output binlogs. From the
manual:
`log-slave-updates' Tells the slave to log the updates from the
slave thread to the binary log. Off by default.
You will need to turn it on if you plan to
daisy-chain the slaves.
Chuck Gadd wrote:
rubn ruvalcaba wrote:
I want to know how could solve the next replication scenario:
I have a master.
I have 5 slaves.
At start the slaves has a master snapshot.
Now imagine slave 1, inserts a record. When it gets connected to the
lan, it must replicate it's changes to the master.
No, a slave receives changes that occur at the master. That's
why it's a slave.
I suspect you want each machine to be a Master and a slave.
--
Lloyd Kvam
Venix Corp.
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Stefan Kuhn M. A.
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