[Bug 283037] Unable to connect to akonadi after laptop resume

[Szymon Stefanek]

https://bugs.kde.org/show_bug.cgi?id=283037





--- Comment #29 from Szymon Stefanek <pragma kvirc net>  2011-12-12 06:46:41 ---
I've managed to view some of the emails by killing the mixedmail resource and
(re)starting it manually in the console several times.

>From this I've figured out that the mixedmail resource gets stuck on something.

Once I start it kmail shows the messages. Then I browse around the folders to
display random messages: after several clicks it starts slowing down and after
a few more it gets stuck totally. From that point on no more messages are
viewable
(even the ones that were visible before can't be viewed).


When the bug is triggered (that is kmail displays the "Retrieving Folder
Contents" message for the first time) the resource stays quiet for some seconds
and then spits out a lot of messages similar to this one:

akonadi_mixedmaildir_resource_1(8900)/akonadiresource (maildir)
RetrieveItemsJob::Private::fetchChangedResult: Store fetch for changed item
"1323661243.R144.spyro" in collection -869 , "" did not return the expected
item. error= 102 , "Given folder name is empty" 
akonadi_mixedmaildir_resource_1(8900)/akonadiresource (maildir): "Given folder
name is empty" collection: Collection ID: -12556    remote ID: "" 
   name: "" 
   url: KUrl("akonadi:?collection=-12556") 
   parent: -869 "" 
   resource: "" 
   rights: QFlags(0x1|0x2|0x4|0x8|0x10|0x20) 
   contents mime type: () 
    CachePolicy:  
   inherit: true 
   interval: -1 
   timeout: -1 
   sync on demand: false 
   local parts: () 
    CollectionStatistics: 
   count: -1 
   unread count: -1 
   size: -1 
akonadi_mixedmaildir_resource_1(8900)/akonadiresource (maildir)
RetrieveItemsJob::Private::fetchChangedResult: Store fetch for changed item
"1323661243.R175.spyro" in collection -869 , "" did not return the expected
item. error= 102 , "Given folder name is empty" 

>From that point the resource is stuck. The error messages from a previous mail
suggest that it doesn't answer at all to DBUS queries.

I haven't found a clear and systematic way to reproduce the issue.
Earlier I've reproduced it by opening a specific folder and clicking an email
inside it. But then after a restart the same action didn't trigger the problem.

However it might be something related to timing. In particular I can trigger it
very easily shortly after the akonadi server and mysql have been restarted.
This is possibly because the caches are empty and take time to be filled. After
I kill and restart the mixedmail resource several times, however, the bug hits
less and less until I can
browse all my folders and view all my messages.

Weird.

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