That was intended to be addressed only to John. Mea culpa.
On Wed, 24 Jan 2018, Stephen Joyce wrote:
Hey, John.
Let me know if you have more problems, or just need to bounce any ideas
around.
I went through something similar last summer, but I actually changed IP
addresses (moved to a different VLAN). I decided to bite the bullet and
virtualize my DB servers at the same time. You may want to consider the
same. It has the potential to make some future tasks much simpler (esp.
disaster recovery).
I think I ended up having 3 short downtimes (announced 1 hour; finished in
15 mins each time) scheduled during semester breaks.
For safety, I've currently got all 3 DB servers are on separate dedicated,
low-power hypervisors in the same cluster (Dell R410s), so I'm not really
eliminating physical boxes per-se, but it gives me flexibility to snap the
VMs, reboot *fast*, live migrate the VMs between HVs for patching, hardware
upgrades, etc...
Stephen
On Wed, 24 Jan 2018, John Sopko wrote:
I did not have the secondary db machines in /usr/vice/etc/CellServDB.
All is good :)
On Wed, Jan 24, 2018 at 9:57 AM, John Sopko <[email protected]> wrote:
I need to upgrade our afs db servers. It has been sometime so I setup
a test cell with 3 servers to see how things react when the lowest IP
server is down.
When the lowest IP db server is down udebug shows the second lowest IP
becomes the sync site. But, I cannot do certain commands that time out
because they are trying to use the lowest IP address that id down. For
example I cannot do "pts listentries -users" "vos listvldb". The file
services seem to be ok.
I use "strace pts listentires -users" which shows the client keeps
trying the down machines IP until it finally times out. Can anyone
shed any light on what is going on. Thanks.
--
John W. Sopko Jr.
University of North Carolina
Computer Science Dept CB 3175
Chapel Hill, NC 27599-3175
Fred Brooks Building; Room 140
Computer Services Systems Specialist
email: sopko AT cs.unc.edu
phone: 919-590-6144
--
John W. Sopko Jr.
University of North Carolina
Computer Science Dept CB 3175
Chapel Hill, NC 27599-3175
Fred Brooks Building; Room 140
Computer Services Systems Specialist
email: sopko AT cs.unc.edu
phone: 919-590-6144
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--
Stephen Joyce
Linux Systems Specialist
Office of Arts & Sciences Information Services
University of North Carolina at Chapel Hill
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Sincerely,
Stephen
--
Stephen Joyce
Linux Systems Specialist
Office of Arts & Sciences Information Services
University of North Carolina at Chapel Hill
Need computing support within the College of Arts and Sciences?
For Windows or MacOS assistance, please email [email protected].
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