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Re: Synchronizing two MySQL servers over slow network

From: C K (shreeseva.itgmail.com)
Date: Sun Aug 26 2007 - 11:44:48 CDT


Thank you very much.
The VPN bandwidth will be 128/256 kbps. Also we have to make updates to both
locations simultaneously and our application is provided with locking
mechanism for updating records and resolving conflicts to update same
record.
Also please give the details about term active/active and how it could be
implemented?
It can be possible to update the data to both servers and keep another for
reporting only purpose.
Is it possible to make HO as Master and Reporting as Slave and Site Server
as another master and same Reporting as Slave. i.e. Reporting will be
the salve for both masters in Replication?
Thanks again
CPK

On 8/26/07, Gary W. Smith <garyprimeexalia.com> wrote:
>
> > for generating Statutory reports. Also cluster can not be a solution
> as
> > it
> > requires min. 100 MB network.
>
> Says who?
>
> But clustering won't help. You are looking for active/active, which
> could be accomplished but this would possibly lead to specific conflicts
> if people are trying to edit the same record.
>
> You've also failed to mention the speed you are talking about. My home
> office is a replication point for our large database at our CO. I do
> this over Cable.
>
> You could try active/active, assuming you work out some type of conflict
> resolution plan. If each site will generally be editing their own data,
> but combined for reporting only, then active/active should be fine, even
> if you are talking about 20KB/s.
>
>
>
> > Can we generate scripts on windows to sync them manually?
> > Thanks
> > CPK
> >
> > On 8/25/07, Craig Huffstetler <craig.huffstetlergmail.com> wrote:
> > >
> > > I would probably recommend replication. It's not that bad to setup
> > and
> > > once it catches up on the slave then it will continue to be an easy
> > sync in
> > > the future as long as both are running. How big is the database you
> > wish to
> > > synchronize? What connection are both servers on?
> > >
> > > Is there anyway possible to disable to VPN between the two D.B.
> > servers?
> > > Perhaps a firewall in between is in use and you can simply setup
> > access
> > > rules for both to talk to each other? The VPN tunnel is most likely
> a
> > big
> > > slow down.
> > >
> > > On 8/25/07, C K <shreeseva.itgmail.com> wrote:
> > > >
> > > > Hi,
> > > > I have a problem as below-
> > > > We have a MySQL server for our ERP database. Now we have to
> > implement
> > > > the
> > > > ERP for Head office. HO is away from the current setup and
> > connection
> > > > between the two is through VPN at slow speed. How can we
> > synchronize the
> > > > two
> > > > MySQL servers?
> > > > Replication,
> > > > Cluster, or manually?
> > > > Thanks for your replies.
> > > > CPK
> > > >
> > > > --
> > > > Keep your Environment clean and green.
> > > >
> > >
> > >
> >
> >
> > --
> > Keep your Environment clean and green.
>

--
Keep your Environment clean and green.