Some time back, I asked this list whether it was safe to mix 3.4 and 3.5
VLDB servers in the same cell, to make upgrading easier. Thank you,
everyone who responded with your experiences.
Several people reported that they had successfully done this with 3.4 and
3.5 servers (my understanding is that it's not possible between 3.3 and
3.4 due to major format changes) and haven't seen any problems. Transarc,
however, strongly recommends that one *not* attempt to do this, and that
in fact one run the same build level on all of the servers, not just the
same major revision.
We're currently running different build levels on different servers and
haven't seen any problems, but given the word from Transarc, I think we'll
plan to upgrade all of the VLDB servers to 3.5 simultaneously.
--
Russ Allbery ([EMAIL PROTECTED]) <URL:http://www.eyrie.org/~eagle/>
