DNS propagation can take a long time based on my experience. We have a similar problem where we host multiple identical setups in different EC2 availability zones. We have been thinking of having DNS entry with multiple A records for load distribution and failover. However, that doesn't solve the problem of OP.
Vivek Sent via BlackBerry from T-Mobile -----Original Message----- From: Baptiste <[email protected]> Date: Tue, 1 Nov 2011 18:17:25 To: Senthil Naidu<[email protected]> Cc: Gene J<[email protected]>; [email protected]<[email protected]> Subject: Re: haproxy and multi location failover There is not (yet) a GSLB or dyndns daemon available in opensource, but a few DNS server could be used to emulate this feature. - PowerDNS + pipe backend - unbound + python module or yourself updating your DNS server to trigger a failover Cheers On Tue, Nov 1, 2011 at 6:10 PM, Senthil Naidu <[email protected]> wrote: > hi, > > we need to have a setup as follows > > > > site 1 site 2 > > LB (ip 1) LB (ip 2) > | | > | | > srv1 srv2 srv1 srv2 > > site 1 is primary and site 2 is backup in case of site 1 LB's failure or > failure of all the servers in site1 the website should work from backup > location servers. > > Regards > > On Tue, Nov 1, 2011 at 10:31 PM, Gene J <[email protected]> wrote: >> >> Please provide more detail about what you are hosting and what you want to >> achieve with multiple sites. >> >> -Eugene >> >> On Nov 1, 2011, at 9:58, Senthil Naidu <[email protected]> wrote: >> >> Hi, >> >> thanks for the reply, if the same needs to be done with dns do we need >> any external dns services our we can use our own ns1 and ns2 for the same. >> >> Regards >> >> >> On Tue, Nov 1, 2011 at 9:06 PM, Baptiste <[email protected]> wrote: >>> >>> Hi, >>> >>> Do you want to failover the Frontend or the Backend? >>> If this is the frontend, you can do it through DNS or RHI (but you >>> need your own AS). >>> If this is the backend, you have nothing to do: adding your servers in >>> the conf in a separated backend, using some ACL to take failover >>> decision and you're done. >>> >>> cheers >>> >>> >>> On Tue, Nov 1, 2011 at 2:25 PM, Senthil Naidu <[email protected]> >>> wrote: >>> > Hi, >>> > >>> > Is it possible to use haproxy in a active/passive failover scenario >>> > between >>> > multiple datacenters. >>> > >>> > Regards >>> > >>> > >>> > >>> > >> > >
