On Mon, Feb 16, 2015 at 01:41:18PM +1100, Christopher Samuel wrote: > Hiya! > > On 13/02/15 19:00, Olli-Pekka Lehto wrote: > > > I’d be interested to hear if people have deployed or upgraded > > CentOS/EL 7 on their clusters and what their experiences are? Also in > > the more general sense, what kind of distro upgrade philosophy do you > > follow? Are there a long-term roadmaps that you build internally, for > > example? > > We went from RHEL5 to RHEL6 on our clusters about 2 years ago, we > started off with a new machine that went straight to RHEL6 and then the > other two existing Intel clusters had separate week long outages and we > treated it as essentially as a reinstall of each cluster from scratch. > > We also transitioned from Torque+Moab to a pure Slurm solution at the > same time. > > It meant a lot of rebuilding of software, but I was actually surprised > at how easily it went all up. > > For a strategy for upgrades, I suspect that's really down to each site > as there will be differences in the resources available, the push/pull > from old to new plus the good old "if it ain't broke, don't fix it". >
There is a supported upgrade path on Red Hat Enterprise Linux from 6.5+ to 7 _IF_ you have no third party applications. There's no such supported path on CentOS. CentOS 7 is different enough from 5 and 6 that I would respectfully suggest clean installs throughout. There is a reason that I run Debian wherever I can (although I have been interested for many years, I don't currently have a cluster either at work or at home.) :) All the very best, Andrew Cater > All the best! > Chris > -- > Christopher Samuel Senior Systems Administrator > VLSCI - Victorian Life Sciences Computation Initiative > Email: [email protected] Phone: +61 (0)3 903 55545 > http://www.vlsci.org.au/ http://twitter.com/vlsci > > _______________________________________________ > Beowulf mailing list, [email protected] sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
