RE: cluster or replication

2005-09-13 Thread Alan Williamson
 I've 10 server in differents locations, I want to make a broadcast, I 
 would like to have always datas synchronized between this network, each 
 database have the same tables and same structure. Each insert or update 
 in database will be executed for each server within this broadcast, 
 what's the best choice ?

At the moment, replication is your best option.  Replication works very
nicely over wide-area-networks, where the bandwidth between each node
could be dramatically different.

The only constraint you'll have here is that there can only be one MASTER
that has to accept all the INSERT/UPDATE/DELETE (or anything that will
make the data change).  All other nodes would be considered SLAVEs and
be READ-ONLY.

Hope this helps.

a

-- 
 Alan Williamson, Technology Evangelist
 SpikeSource Inc.
 Daily OS News @ http://compiledby.spikesource.com/

-- 
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]



Re: cluster or replication

2005-09-13 Thread Cory Robin
Is it possible to have cluster and replication?  (ie clusters at each 
location and replication to sync each location)


Alan Williamson wrote:

I've 10 server in differents locations, I want to make a broadcast, I 
would like to have always datas synchronized between this network, each 
database have the same tables and same structure. Each insert or update 
in database will be executed for each server within this broadcast, 
what's the best choice ?
   



At the moment, replication is your best option.  Replication works very
nicely over wide-area-networks, where the bandwidth between each node
could be dramatically different.

The only constraint you'll have here is that there can only be one MASTER
that has to accept all the INSERT/UPDATE/DELETE (or anything that will
make the data change).  All other nodes would be considered SLAVEs and
be READ-ONLY.

Hope this helps.

a

 




--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]



Re: cluster or replication

2005-09-13 Thread Lorenzo De Vito
This isn't a constraint, this is a limit, the goal is to have a 
bi-directional replication but I've not found solutions to my problem 
using mysql. I've a control access system with 9 minitowers which 
controls people access via RFID, each minitower is provided with linux 
and mysql synchronized with a main server, each machine is identical to 
others and can alive without connecting to main server if any problem 
hardware or software close the connection with the rest of the network 
and align again datas if connection go up, something like a survivor 
system. So now you can understand that with this scenario mysql actual 
replication MASTER/SLAVE isn't a solution. (Perhaps I'll think to modify 
sources :)) )

The only constraint you'll have here is that there can only be one MASTER
that has to accept all the INSERT/UPDATE/DELETE (or anything that will
make the data change).  All other nodes would be considered SLAVEs and
be READ-ONLY.

Hope this helps.

a

  



--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]



cluster or replication

2005-09-12 Thread Lorenzo De Vito
I've 10 server in differents locations, I want to make a broadcast, I 
would like to have always datas synchronized between this network, each 
database have the same tables and same structure. Each insert or update 
in database will be executed for each server within this broadcast, 
what's the best choice ?


--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]



RE: cluster or replication

2005-09-12 Thread Cory Robin
 Since MySQL-Cluster is not recommended over a WAN that's not an option.   I
soon will be looking for a method to syncronize real-time data between a
active/passive datacenter setup.  (One datacenter in Salt Lake City, Utah
and another in Las Vegas, Nevada)

At this time I don't think any 'out of the box' MySQL package will do what
you want -- I could be wrong though.

It seems to me that this is something that is going to become more and more
popular so I'd be really surprised is MySQL-AB isn't already cooking
something up.

-Cory Robin, SkyVantage Corporation

-Original Message-
From: Lorenzo De Vito

I've 10 server in differents locations, I want to make a broadcast, I would
like to have always datas synchronized between this network, each database
have the same tables and same structure. Each insert or update in database
will be executed for each server within this broadcast, what's the best
choice ?




-- 
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]