|
> I have a project where I have a Java application server running, and I
> want to ensure uptime. I have worked with a Compaq Tru64 cluster
> before, and if one of my machines fails to run my application server,
> the cluster starts it up on another node.
>
> Is there anything that can do this in Linux, or maybe something
> similar?
>
> I'm sorry to ask this question, I know I should have investigated the
> various documentation myself, but when I did a search on "linux
> cluster" I just got so many hits that I did not know where to start.
> So I thought that you guys maybe could say "yes Linux Virtual Server
> can do just that, go for it" or "yes BeoWulf is the place for you" :)
As somebody else pointed out, neither LVS nor Beowulf sounds right for
what you are trying to do (based on the limited information here).
For freeware that you pay for with the sweat of your brow, heartbeat/mon
sounds like what you are looking for; see http://www.linux-ha.org for
more info and links.
For commercial solutions, there is Redhat Piranha (and probably others)
that is more or less based on the Open Source Linux stuff, and there is
a mailing list for that as well. It is not particularly cheap if you
buy it, but you can download it for free if you think you can get it
running without calling Redhat for support.
For true commercial quality cross-platform HA failover clustering,
Veritas Cluster Server is or will be available very soon for Redhat
Linux. This is the same cluster software that Veritas sells for
Solaris, HP/UX and Windows right now, with AIX either here or available
very soon as well. This is part of an overall commercial software
offering that has a Global Cluster Manager, Volume Manager, Veritas
File System, Veritas Volume Replicator and perhaps even the Cluster
File System and Cluster Volume Manager. I am not certain, but in the
very near future (ie by this summer), it may be possible to run
Oracle Parallel Server fully functional on Linux. None of this is
going to be cheap though, but in an era of Linux on IBM Mainframes,
who knows, enough people may buy it to make it economically viable.
We live in interesting times.
--
John Cronin
mailto: `echo NjsOc3@xxxxxxxxxxx | sed 's/[NOSPAM]//g'`
|
