That configuration doesn't seem to work if I'm reading it right. A slave
cannot have more then one master unless mysql more then 1 mysqld process
running on different ports is used.

-->For example, if a person places an order on our site, the update is
sent
-->to
-->the master server. Can that update be replicated to the slaves before
the
-->browser is taken to a reciept page (which is queried against the
slaves)?

Also guaranteeing an event has occurred on a slave and building
application logic dependent on this necessity is a tough problem to
solve and you might as well query the master since you need to verify
the event is there anyway as part of the conditional.

The reason for my last statement, I've notice in 3.23.5x that
replication lag can occur in many situations:
- The master is loaded and is not able to stream the binary log file as
fast.
- Locks on the slave preventing updates to occur
- Load on the slave is high
- Invalid packet errors where the slave needs to reconnect
- Some sort of error that stops replication


With all of the above examples, I would not have application logic
dependent on slave events. Instead code your applications based on the
known limitations.

For example a search engine. It does not necessarily need an up to date
all of the time index of words and matches...


--
Dathan



-->-----Original Message-----
-->From: Ian Neubert [mailto:[EMAIL PROTECTED]
-->Sent: Thursday, August 07, 2003 11:27 AM
-->To: [EMAIL PROTECTED]
-->Subject: MySQL Replication
-->
-->Hello all,
-->
-->Can anyone share their experience with replication? In particular I'm
-->wondering how fast (or how slow?) replication occurs. Could I pull
off
-->the
-->configuration below?
-->
-->
-->http://linux.ianneubert.com/images/mysql_failover.png or
-->http://linux.ianneubert.com/images/mysql_failover.pdf
-->
-->Thanks for your insight!
-->
-->.......................
-->Ian Neubert
-->Director of IS
-->TWAcomm.com, Inc.
-->http://www.twacomm.com/
-->
-->
-->--
-->MySQL General Mailing List
-->For list archives: http://lists.mysql.com/mysql
-->To unsubscribe:
-->http://lists.mysql.com/[EMAIL PROTECTED]




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