Re: upgrading with murder/aggregator

On 03/15/2017 02:02 PM, Patrick Hennessy wrote:
> We are looking to migrate from a 2.3.7 server to a 2.4.18 server.  I was
> hoping to set up the cyrus murder/aggregator and move the existing
> server behind that.  While doing some reading and research, I came
> across the following mailing list thread.  I was wondering if it's still
> the case that the frontend needs to be the same version as the older
> backend?
>
> https://lists.andrew.cmu.edu/pipermail/info-cyrus/2010-May/033061.html

Yes, it is still the case that a newer frontend may try to proxy 
commands to an older backend that it does not understand/support.
As a result, backends are usually upgraded before the frontends.


> Aside from the compatibility between frontend and backend, there was
> also a comment about having to recompile the sieve filters per the other
> post below.  Is that still the case moving from 2.3.7 to 2.4.18?  Are
> there any other gotchas to look out for?
>
> https://lists.andrew.cmu.edu/pipermail/info-cyrus/2010-May/033056.html

Sieve scripts compiled with 2.3 *should* be compatible with 2.4. There 
is no mention of recompiling in the upgrade notes.


> Thanks in advance,
>
> Pat
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-- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University

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