Sorry - I was still working on this reply & sent it by mistake!
What I meant to say was - shadow master's the route I'd say is the
easiest & least disruptive. It does sound as if you need to move the
SGE_ROOT file system from one host to the next as well, though (mine's
on an NFS share, makes this sort of thing much quicker :) ).
I'd say stopping everything & simply syncing it should work. Never done
that between BSD & Linux but have done between different Linux flavours.
Er - classic spooling or DB spooling? I've only ever tried with classic
spooling.
Don't even think you need to bother with the IP - changing 'act_qmaster'
ought to do the trick.
Tina
On 26/03/14 09:57, Tina Friedrich wrote:
Can't you just install the new one, make it one of the shadow masters,
and call a migrate? I've never done this across OSs (all my qmasters are
Linux hosts), but I quite often migrate the service between those (while
the cluster is live) - seems to work really well.
Tina
On 26/03/14 02:13, Kevin Buckley wrote:
Hi there,
we're looking to swap the NetBSD machine that hosts our qmaster for
an Arch Linux one.
I am sure we can just shut down the NeBSD qmaster, bring up the new
machine with the name and IP and start the ArchLinux qmaster but
can we just sync the qmaster's state across the two machines, or will
the OS switch chuck a spanner in the works?
I can't see why but am open to info.
My searches for move and migrate so far have thrown up possible
solutions
however there seem to be shadow masers involved and we don't have that
set-up and we're not really migrating, just pulling the rug from
underneath
everything and putting a new rug back.
We're running 8.1.6 and have
spooling_method classic
spooling_lib libspoolc
Kevin M. Buckley
eScience Consultant
School of Engineering and Computer Science
Victoria University of Wellington
New Zealand
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