Well, that would be the plan, yes. :-) Anyway, I'll get over the problem sooner or later. :-)
On Mon, Sep 13, 2010 at 8:46 PM, Jerry Schwartz <je...@gii.co.jp> wrote: > >-----Original Message----- > >From: Kiss Dániel [mailto:n...@dinagon.com] > >Sent: Monday, September 13, 2010 11:49 AM > >To: Jerry Schwartz > >Cc: Johan De Meersman; Max Schubert; mysql@lists.mysql.com; > >replicat...@lists.mysql.com > >Subject: Re: Unique ID's across multiple databases > > > >Well, not exactly. > > > >I do not own all the databases. Some of them are placed at customers, some > >of them are at my data warehouse. So, neither NAS or Fibre Channel is a > >solution in this case. > > > [JS] Then you have a mess on your hands. > > Are you going to be mirroring these databases separately for each customer? > > I wish you well. > > Regards, > > Jerry Schwartz > Global Information Incorporated > 195 Farmington Ave. > Farmington, CT 06032 > > 860.674.8796 / FAX: 860.674.8341 > E-mail: je...@gii.co.jp > Web site: www.the-infoshop.com > > > > > >On Mon, Sep 13, 2010 at 4:30 PM, Jerry Schwartz <je...@gii.co.jp> wrote: > > > >> >-----Original Message----- > >> >From: vegiv...@gmail.com [mailto:vegiv...@gmail.com] On Behalf Of > Johan > >> De > >> >Meersman > >> >Sent: Monday, September 13, 2010 7:27 AM > >> >To: Kiss Dániel > >> >Cc: Max Schubert; mysql@lists.mysql.com; replicat...@lists.mysql.com > >> >Subject: Re: Unique ID's across multiple databases > >> > > >> >Hmm, that's a very interesting scenario, indeed. > >> > > >> >One bad connection will break the chain, though, so in effect you'll be > >> >multiplying the disconnecting rate... > >> > > >> >I think you'd be better of with a star topology, but MySQL > unfortunately > >> >only allows ring-types. This is gonna require some good thinking on > your > >> >part :-) > >> > > >> [JS] It sounds like you are trying to protect against a regional > disaster. > >> > >> This is precisely the type of scenario for which NAS or FibreChannel is > >> used. > >> You let the storage medium take care of replication. Typically you'd > only > >> need > >> two units, perhaps on opposite sides of the country, using FibreChannel > >> over > >> IP. > >> > >> I've been out of this market (sales/support side) for many years, so I > >> don't > >> know what the current technology costs, but if you can afford it that is > >> the > >> way to go. It will make your life much simpler. > >> > >> > >> Regards, > >> > >> Jerry Schwartz > >> Global Information Incorporated > >> 195 Farmington Ave. > >> Farmington, CT 06032 > >> > >> 860.674.8796 / FAX: 860.674.8341 > >> E-mail: je...@gii.co.jp > >> Web site: www.the-infoshop.com > >> > >> > >> > >> >On Mon, Sep 13, 2010 at 12:28 PM, Kiss Dániel <n...@dinagon.com> > wrote: > >> > > >> >> This is actually more for failover scenarios where databases are > spread > >> in > >> >> multiple locations with unreliable internet connections. But you want > to > >> >> keep every single location working even when they are cut off from > the > >> >> other > >> >> databases. The primary purpose is not load distribution. > >> >> > >> >> On Mon, Sep 13, 2010 at 12:03 PM, Johan De Meersman < > vegiv...@tuxera.be > >> >> >wrote: > >> >> > >> >> > > >> >> > > >> >> > On Sun, Sep 12, 2010 at 9:45 PM, Kiss Dániel <n...@dinagon.com> > >> wrote: > >> >> > > >> >> >> offset + increment thingy is good if you know in advance that > you'll > >> >> have > >> >> >> a > >> >> >> limited number of servers. But if you have no idea that you will > have > >> 2, > >> >> >> 20, > >> >> >> or 200 servers in your array in the future, you just can't pick an > >> >> optimal > >> >> >> > >> >> > > >> >> > What benefit do you think you will reap from that many masters ? > Don't > >> >> > forget that every write still has to be done on every server, so > >> you're > >> >> not > >> >> > actually distributing that load; while for reads you only need > simple > >> >> > slaves. > >> >> > > >> >> > > >> >> > -- > >> >> > Bier met grenadyn > >> >> > Is als mosterd by den wyn > >> >> > Sy die't drinkt, is eene kwezel > >> >> > Hy die't drinkt, is ras een ezel > >> >> > > >> >> > >> > > >> > > >> > > >> >-- > >> >Bier met grenadyn > >> >Is als mosterd by den wyn > >> >Sy die't drinkt, is eene kwezel > >> >Hy die't drinkt, is ras een ezel > >> > >> > >> > >> > > > >
