Re: questions for users of shared mailboxes: conversations

On 2025-09-24 2:23 PM, Ricardo Signes via Info wrote:
> Hi,
> 
> Over time, we're trying to reduce the number of possible configurations 
> of Cyrus.  Every optional feature means more possible configurations, 
> which means more testing and debugging.  A likely candidate for "no 
> longer optional" in the future is the conversations system.  In general, 
> I do not expect this to cause difficulty, but there is one place that it 
> becomes interesting.
> 
> The conversations database is per-user, and so grows in proportion to 
> the user's mail size.  That's the unit you have to scale at.
> 
> *For shared, not-user-owned mailboxes, there is no conversationsdb. *If 
> we want to create one, we will need to think about where it goes, and 
> how we scale.  For example, if you're using shared mailboxes to store 
> all of usenet, you may well want to split that up into multiple 
> conversation databases.

Are conversations databases not also required for xapian search? How are 
shared mailboxes indexed for search, or are they excluded?

> We (Fastmail) do not use shared mailboxes like this.  I am looking for a 
> show of hands or description of use case from anybody out there who /is 
> /using shared mailboxes like this so we can get a sense of what folks 
> are doing.  (I realize that this is not going to be a scientific survey 
> of all Cyrus IMAP users.)
> 
> Hit reply or reply to me privately.  Thanks!

-- 
Nels Lindquist
[email protected]


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