Am 18.11.2012 20:05, schrieb Kevin Krammer: > On Sunday, 2012-11-18, Martin (KDE) wrote: >> Am 18.11.2012 11:52, schrieb Kevin Krammer: >>> If a switch in default backend would have to propagate to the user >>> installations, this would require some changes in the user home >>> directories as well (moving stuff from one database to another). >>> I am quite certain that the upstream default regarding backend hasn't >>> changed, so any distribution changing the default will either have >>> deployed a migration process of some sort anyway or leave existing >>> setups untouched by choice in order not to have to. >> >> Hm, I am a little bit astonished here. If the data in the mysql database >> is cache only data, then simply changing the configuration should do the >> trick. I would have two caches laying around, but thats it. > > True for the read cache, not so true for the write cache. > >> What do I have to migrate then? > > For example there could be data that has not yet been written to its backend. > That would be the case if Akonadi is shut down (e.g. due to logout) while one > of the resources that had user changes was not online (e.g. could not connect > to its server). > > There could also be meta data that a backend was not able to handle itself, > e.g. read/unread status of emails from an mbox file. > > While discarding of meta data would be no more than an annoyance, discarding > of uncommitted changes could be (an uncommitted deleted would be just an > annoyance and uncommitted add not so much). So, if I want to switch from mysql to sqlite I have to - stop akonadi - wait a few seconds to let akonadi sync - switch to sqlite - start akonadi With imap and maildir all should be the same as before. Is there a backup thingy that creates pure sql statements to migrate the data? Regards Martin > > Cheers, > Kevin > > > > > ___________________________________________________ > This message is from the kde mailing list. > Account management: https://mail.kde.org/mailman/listinfo/kde. > Archives: http://lists.kde.org/. > More info: http://www.kde.org/faq.html. ___________________________________________________ This message is from the kde mailing list. Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.