Mailbox rename and Cyrus murder

[egoitz at sarenet.es]

Hi!,

I have been reading this interesting thread https://lists.andrew.cmu.edu/pipermail/cyrus-devel/2015-March/003165.html from 2015. As a curiosity, did finally that ended in some sort of production env?. I have seen this kind of pages https://www.cyrusimap.org/imap/concepts/features/server-aggregation.html but have not seen their publish date or similar…

I’m in the state at which, operations in mail servers are being more and more frequent… they are starting not being able to be done without automation, but before that.. and writing code… I wanted to know if someone could share some experience in horizontal scaling (backend or mailbox server clustering), because live moving mailboxes without interruption or in the most possible easy way (just as examples), are important things to know before writing all the automation stuff… knowing if a Cyrus Murder could failover from backend automatically (after a crash) or similar…

Reading at present https://www.cyrusimap.org/imap/concepts/features/server-aggregation.html …

Any shared experience would be highly appreciated,

Cheers!





Egoitz Aurrekoetxea
Dpto. de sistemas
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egoitz at sarenet.es <mailto:undefined>
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> El 29 abr 2020, a las 17:58, egoitz at sarenet.es escribió:
> 
> Hi,
> 
> Sometimes, we need to redistribute mailboxes between different Cyrus partitions in the same server. We do it by blocking previously any kind of accesses to the mailbox and after stopping any kind of active connection to that mailbox. I was wondering, if this exactly, is really needed because it’s really something that could cause problems to the mailbox (we do it this way always, as a procedure for avoiding problems, but is it really needed??). I’m in the process of automating this kind of operation, but reading some info before writing code, I have seen that Cyrus murder allows “live” mailbox migration… perhaps is this another option for avoid doing mailbox rename operations for moving a mailbox to a different partition?.
> 
> I have read too (perhaps have not understand properly), that a Cyrus Murder can redirect requests to another mailbox server, in case one of them fails?. Is it like a automated way of changing master/slave roles?.
> 
> How is your experience with murders?. Do they allow this what I have asked?. If they do have you ever seen any kind of issue with it?,
> 
> Cheers,
> 
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