Re: informix, linux and beowulf
Informix does NOT use that kind of clustering as is present in Beowulf. The Informix clustered product, XPS or IDS 8.xx, uses multiple co-servers in two distinct ways. 1) It can spread a database, indeed even a single table, across multiple coservers on the same or on different machines on the network to improve the locality of data or to take advantage of additional hardware or to create tables or databases too large for a single co-server. 2) With two or more machines clustered to be able to share drives if a co-server or its machine crashes one can bring up the coserver on the clustered partner machine and continue processing as if nothing happened. Currently Informix has not ported XPS to Linux though it does not require any special OS or hardware services to function it does take advantage of high speed message passing facilities on various platforms such as Solaris. Art S. Kagel tokelly@my-deja.com wrote: > hello all, > > has anyone out there attempted/succeeded at getting informix to run on a > beowulf cluster? i am curious how (if at all) the processing would be > distributed across the multiple servers? > > thanks in advance for any advice. > > Ty O'Kelly > tokelly@my-deja.com > > Sent via Deja.com http://www.deja.com/ > Before you buy.
"Art S. Kagel" <kagel@bloomberg.net> writes: > Informix does NOT use that kind of clustering as is present in Beowulf. > > The Informix clustered product, XPS or IDS 8.xx, uses multiple co-servers in > two > distinct ways. 1) It can spread a database, indeed even a single table, > across > multiple coservers on the same or on different machines on the network to > improve > the locality of data or to take advantage of additional hardware or to > create tables > or databases too large for a single co-server. 2) With two or more machines > > clustered to be able to share drives if a co-server or its machine crashes > one can > bring up the coserver on the clustered partner machine and continue > processing as > if nothing happened. Currently Informix has not ported XPS to Linux though > it does > not require any special OS or hardware services to function it does take > advantage > of high speed message passing facilities on various platforms such as > Solaris. > > Art S. Kagel > > tokelly@my-deja.com wrote: > > > hello all, > > > > has anyone out there attempted/succeeded at getting informix to run on a > > beowulf cluster? i am curious how (if at all) the processing would be > > distributed across the multiple servers? > > > > thanks in advance for any advice. > > > > Ty O'Kelly > > tokelly@my-deja.com > > > > Sent via Deja.com http://www.deja.com/ > > Before you buy. But... One could replicate the databases to all servers and let the programs use "Beowulfism". Why one would do that I don't know;) Thomas
Thomas Parsli wrote: > "Art S. Kagel" <kagel@bloomberg.net> writes: > > > Informix does NOT use that kind of clustering as is present in Beowulf. > > > > The Informix clustered product, XPS or IDS 8.xx, uses multiple co-servers in > > two > > distinct ways. 1) It can spread a database, indeed even a single table, > > across > > multiple coservers on the same or on different machines on the network to > > improve > > the locality of data or to take advantage of additional hardware or to > > create tables > > or databases too large for a single co-server. 2) With two or more machines > > > > clustered to be able to share drives if a co-server or its machine crashes > > one can > > bring up the coserver on the clustered partner machine and continue > > processing as > > if nothing happened. Currently Informix has not ported XPS to Linux though > > it does > > not require any special OS or hardware services to function it does take > > advantage > > of high speed message passing facilities on various platforms such as > > Solaris. > > > > > Art S. Kagel > > > > tokelly@my-deja.com wrote: > > > > > hello all, > > > > > > has anyone out there attempted/succeeded at getting informix to run on a > > > beowulf cluster? i am curious how (if at all) the processing would be > > > distributed across the multiple servers? > > > > > > thanks in advance for any advice. > > > > > > Ty O'Kelly > > > tokelly@my-deja.com > > > > > > Sent via Deja.com http://www.deja.com/ > > > Before you buy. > > But... > One could replicate the databases to all servers and let the programs use > "Beowulfism". Why one would do that I don't know;) One could better place the database on two replicated (EDR) dedicated servers and still Beowulf-ize the applications and not duplicate all that data so many times while keeping the server's overhead away from the apps. Art S. Kagel