[Kde-pim] Akonadi

[Anders Lund]

Onsdag den 5. december 2012 22:53:24 skrev du:
> On Wednesday 05 December 2012 20:38:22 Anders Lund wrote:
> > Onsdag den 5. december 2012 20:24:53 skrev du:
> > > On Wednesday 05 December 2012 17:18:05 Anders Lund wrote:
> > > > Onsdag den 5. december 2012 15:42:46 skrev du:
> > > > > On Tuesday 13 November 2012 15:13:51 Anders Lund wrote:
> > > > > > On Tirsdag den 13. november 2012 15:06:24 Andras Mantia wrote:
> > > > > > > Anders Lund wrote:
> > > > > > > > Wasn't the idea with akonadi that it should cache my data
> > > > > > > > locally?
> > > > > > > > It
> > > > > > > > doesn't, instead it causes violent CPU abuse when dropping and
> > > > > > > > recreating
> > > > > > > > data stored on the network.
> > > > > > > > 
> > > > > > > > The constant dropping of my webdav account data starts to be a
> > > > > > > > serious
> > > > > > > > problem for me - I really like sharing my data between several
> > > > > > > > devices,
> > > > > > > > but akonadi actually makes that very difficult to live with,
> > > > > > > > due
> > > > > > > > to
> > > > > > > > this
> > > > > > > > misfunctionality.
> > > > > > > > 
> > > > > > > > The problems appears to happen when the network connection is
> > > > > > > > slow, as
> > > > > > > > described in a bug report that have been mostly ignored.
> > > > > > > 
> > > > > > > What is cached, how long it is cached and how the data is
> > > > > > > uploaded/downloaded through the network is depending on the
> > > > > > > resoruce
> > > > > > > itself, so you should get in touch with their developers.
> > > > > > 
> > > > > > That is why i write to this list :)
> > > > > > 
> > > > > > Sometimes my calendars/contacts are not available, and I do not
> > > > > > believe
> > > > > > that is the idea!
> > > > > > 
> > > > > > Calendar items and contacts also regularly gets destroyed and
> > > > > > renewed,
> > > > > > causing A LOT of cpu abuse, and breakage, since for example
> > > > > > contact
> > > > > > groups uses the akonadi id. An object should NEVER be destroyed
> > > > > > unless
> > > > > > it
> > > > > > really is, but they do.
> > > > > > 
> > > > > > My guess is that akonadi sometimes misbehaves, and deletes items
> > > > > > and
> > > > > > resources because of network slowness or breakage.
> > > > > 
> > > > > The thread that Andras started a few days ago about Making
> > > > > offline/onlinepot handling sane - could that be related to this?
> > > > 
> > > > No, not really, as I see it. Although I agree with Andras' analysis.
> > > 
> > > Ok, was just wondering. I do experience weird stuff on bad network
> > > connections and was hoping that stuff might help. But with all the fixes
> > > that went in lately, I'm hoping 4.10 will be a lot better...
> > 
> > Me too. Btw, I bought a lenovo ideapad u310, and i have to say that i
> > experience few problems using that, I think many of my problems serve to
> > proove that a certain amount of resources are required to use akonadi +
> > nepomuk.
> 
> Interesting observation. So it might be that a slow system triggers certain
> race conditions rarely observed on faster systems - unless they are loaded
> heavily. This might explain some of the KDE PIM issues... Chaotic system, as
> I said before ;-)
> 
> Maybe we need to give some of the devs slower hardware :D

Absolutely, for testing that would be good. My experience is that on the 
netbook (dual core atom 1.6ghz, 1mb ram), akonadi + nepomuk was a nogo. 
withouth akonadi, nepomuk ran fine. Without nepumuk, akonadi ran fine (though 
with some limited functionality of course).

> > > > -anders
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