Re: [Evolution] What happened to Evolution?

[darren ontrenet com]

Huh?

Many people don't leave their messages on ISP servers because of quotas,
so then they get downloaded to their local machine. Where you want fast,
reliable access to them (e.g. searching, sorting, etc.) Unfortunately,
without ACID principles, your local email will get corrupted. And most
don't want that.

Because database technology (embedded or otherwise), use things called
'transactions' it protects the data. If you brew your own 'local storage
system' like Evolution, you have what we have now which is unreliable and
slow.

> > > That would make no sense for a local desktop application - to have to
> > > have a database instance to store [cache] mail?
> > There are numerous embeddable SQL transactional databases that provide
> > fast, reliable
> > and ACID properties that would greatly improve the speed and
> > durability of something
> > important like email.
>
> What's the point?  My email server already provides a perfectly reliable
> repository for my email, why on earth would I want to have a database
> taking up resources on my desktop?
>
> Apart from this there are so many other issues with using databases to
> store emails - is there a standard for it? If not, Evo will have to
> invent some format to use.  Also backing up databases is an horrendous
> minefield - it's hardly reliable and "durable" if the database
> containing your emails can't be backed up.
>
> > Since its now clear that Evolution has scaling issues, moving in this
> > design direction should be a good thing.
>
> I don't think it's at all clear.  My various copies of Evo (including
> 2.32.1 on F14) work perfectly fine with 10 or so email accounts, each
> containing tens of thousands of messages.  I have no stability issues,
> no latency issues and the thing that takes the longest on all my
> machines is the initial scan of the IMAP servers.
>
> There were some issues when upgrading from a 32-bit system to a 64-bit
> one, there are also some stability issues when upgrading the indexes.
> Both these things are covered in the FAQ and there have been plenty of
> messages on this list about them.  They are easily solvable.
>
> Finally, if, as I suspect, you are using POP and the messages are being
> downloaded into an MBOX format file, then you need to look at the size
> of that file.  If that file is big, then the speed of the underlying
> filesystem will have a noticeable affect on everything.  Try reducing
> the size of your INBOX, or if that's not possible then try using a
> Maildir format local repository.
>
> Ultimately, you would probably benefit most from moving to an IMAP
> server rather than POP.
>
> P.
>
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