[Dovecot] Scalability plans: Abstract out filesystem and make it someone else's problem

[Daniel L. Miller]

Ha!  Fooled you!  I'm going to reply to the original question instead of 
SIS!

Timo Sirainen wrote:
>  * Index files are really more like memory dumps. They're already in an
> optimal format for keeping them in memory, so they can be just mmap()ed
> and used. Doing some kind of translation to another format would just
> make it more complex and slower.
>
>  * Index and mail data is very different. Index data is accessed
> constantly and it must be very low latency or performance will be
> horrible. It practically should be in memory in local machine and there
> shouldn't normally be any network lookups when accessing it.
>   
Ok, I lied.  I'm going to start something new.

Do the indexes contain any of the header information?  In particular, 
since I know nothing of the communication between IMAP clients & servers 
in general, is the information that is shown in typical client mail 
lists (subject, sender, date, etc.) stored in the indexes?  I guess I'm 
asking if any planned changes will have an impact in retrieving message 
lists in any way.

-- 
Daniel