Happy Friday!
We want to retire one of our site squid servers (for cvmfs) for a newer
version (new hardware, new OS, etc). The newer version's FQDN has been put
on some WN by hand for testing, & appears to be functioning well. :)
The easiest thing to do is shutdown the old one & make its FQDN a DNS
alias for the new one; the old one's name is embedded in
/etc/cvmfs/default.local
But, is that a risky thing to do with busy live WN who (judging by the
squid logs) are pretty frequently communicating with their squid server?
There are two site squids in cvmfs client's config:
CVMFS_HTTP_PROXY='http://lcgsq1.phy.bris.ac.uk:3128|http://lcgsq2.phy.bris.ac.uk:3128'
So would cvmfs clients just (safely) switch to the other one during the
transition?
then switch back to the new one with old one's DNS alias, if the other
gets too busy or whatever?
Very grateful for advice!
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