Comment # 1 on bug 995911 from Sebastian Kuhne

I am facing the same issue with Tumbleweed, latest update installed. Kontact
application reports quite often that the Akonadi server is not running. This
happens about every minute. Even more, it looses the information for the tasks
and for the calendar. Emails seem to remain. In settings "Grundeinrichtung f�r
KOrganizer" --> Calendar the account is still available, but restart doesn't
help. Only the deletion and a new setup is helpful but crashes again after
about one minute.
I have deleted in ~home all mail-relevant files to reset Akonadi completely.
Also, the rebuild of Akonadi database didn't help.

I am increasing the priority to P2 because I think this is an important bug
which should be fixed soon.

I am happy to support with log files, etc but the Akonadi structure is quite
complex and I do not know at the moment which information are helpful and
required to help solving this issue.