[Bug 295550] New: Retrieving mails is very slow

[Daniel Faust]

https://bugs.kde.org/show_bug.cgi?id=295550

            Bug ID: 295550
          Severity: normal
           Version: 4.8
          Priority: NOR
                CC: kdepim-bugs at kde.org, vkrause at kde.org
          Assignee: ervin at kde.org
           Summary: Retrieving mails is very slow
    Classification: Unclassified
                OS: Linux
          Reporter: hessijames at gmail.com
          Hardware: openSUSE RPMs
            Status: NEW
         Component: IMAP resource
           Product: Akonadi

When clicking on a mail in kmail it takes very long until the mail is
displayed. I had a look at it with the akonadiconsole and watched the
kmail2-xxxxxx tab in the debugger.
I have some logs I'm willing to send you but I don't think it's a good idea to
post them here.

It seems that especially these queries are slow:
189 OK SEARCH completed 
190 SEARCH "prefix
nco:<http://www.semanticdesktop.org/ontologies/2007/03/22/nco#>SELECT DISTINCT
?person WHERE { graph ?g { ?person
<http://akonadi-project.org/ontologies/aneo#akonadiItemId> ?itemId . ?person a
nco:PersonContact ; nco:hasEmailAddress ?email . ?email nco:emailAddress
\"xxxxxxxxxxx at gmail.com\"^^<http://www.w3.org/2001/XMLSchema#string> . } }"
FULLPAYLOAD EXTERNALPAYLOAD (UID REMOTEID REMOTEREVISION COLLECTIONID FLAGS
SIZE DATETIME) 

They sometimes show up multiple times, and it seems the more often they show up
the longer the retrieval takes.
And sometimes email addresses show up that don't seem to have anything to do
with the email that's being fetched.

Also the email headers seem to be fetched twice.
And doing a right click on an email to bring up the context menu takes very
long, too.

Well, I really don't know how I can provide you with more useful information so
let me know If you need something.

In KDE 4.7 a restart of akonadi fixed that problem but in KDE 4.8.1 this
doesn't seem to work anymore.

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