Re: [kde] about akonadi
- From: Sergei Andreev <seajey.serg@xxxxxxxxx>
- Date: Thu, 25 Mar 2010 15:49:33 +0300
Duncan, such questions should definitely go to specialized mail list -
for example kde-pim@xxxxxxx
2010/3/25 Duncan <1i5t5.duncan@xxxxxxx>:
Kevin Krammer posted on Wed, 24 Mar 2010 21:53:44 +0100 as excerpted:___________________________________________________
One of the common misunderstandings around Akonadi is that the
relational database is used for storage.
Probably introduced by focusing too much on the database part than on
the relational part.
Akonadi, or more specifically the Akonadi server, is a proxy.
Interestingly caching proxies in other domains such as web browsing are
understood in terms of their functionality and not their implementation
details.
Thanks... both you and Sergei... I'm rather less worried about the safety
of my mail, come 4.5, now. =:^)
Next question, then. =:^)
Gentoo recently updated from mysql-5.0 to 5.1. Apparently, mysql doesn't
always maintain database compatibility on minor upgrades, so the upgrade
might have screwed up... at least the cache for... just the address book
this time, if appropriate database upgrade measures weren't undertaken
with the upgrade. Now for folks running mysql as a database that they
know of and intend to have, fine, they know to be cautious about such
things. But now we're talking ordinary desktop users just pulling in
mysql as a kde dependency. All they care about is that their kde just
works.
Now, what happens with kde 4.5, when kmail is dependent on mysql, at least
for caching as we've seen, and these desktop users with little clue
they're even running mysql as it's simply a kde dependency, pull in the
next mysql upgrade?
Is that going to break kmail until they run some sort of akonadi/kde
utility to fix it? Is there even such a utility, or will users be
expected to groke the mysql documentation to fix things? Or will akonadi
detect the problem and automatically rebuild its cache/indexes/whatever,
in non-zero but "reasonable" time (possibly with a nice slider widget like
the one that pops up now when kde starts... maybe that's doing a startup
check to see if a rebuild is necessary?), where "reasonable" might be
defined as a few minutes while the user can do other stuff, before their
mail is again available?
The question restated in short-form: Does akonadi /transparently/ to the
user detect database-incompatible mysql backend updates and rebuild its
cache in a short enough time that said users aren't going to be unduly
inconvenienced by the rebuild?
--
Duncan - List replies preferred. No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master." Richard Stallman
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