On 26 April 2012 10:18, admin iqtc <[email protected]> wrote: > Hi all, > > on the OGS webpage, it says: >> >> Grid Engine 2011.11 is compatible with Sun Grid Engine 6.2u5. You can even >> run Grid Engine 2011.11 on a subset of nodes while the rest of the cluster >> runs the older 6.2u5 release - ie. as a drop-in replacement for 6.2u5. > > > So, how is that achieved? I've searched on the mailing list and google but i > can't find anything regarding that. Is the key on the init script or > something?
There are instructions for running grid engine with reduced or minimal usage of NFS in order to support scaling to many nodes or just because you don't trust NFS. It's probably easiest to do in that configuration. Just replace the whole Grid engine install on whichever nodes you want to upgrade. If you use the default configuration which shares a lot then you might be able to play tricks with symlinks to allow a live upgrade of the system without a prolonged whole cluster outage. Do a new install in parallel making the directory for each cell a symlink to the corresponding directory in the old install. You should hopefully then be able to upgrade each node by softstoping the relevant daemons and then starting them with SGE_ROOT pointed at the new install. Apart from a blip when you restart the qmaster this should be invisible to the users. Never tried it myself but it should work. William > > Thanks _______________________________________________ users mailing list [email protected] https://gridengine.org/mailman/listinfo/users
