[Kde-pim] KMail seems to loose connection to Akonadi at times

[Ingo Klöcker]

On Monday 03 November 2014 11:26:24 Daniel Vratil wrote:
> From this description it sounds like the session is stuck (that's why
> the window closes, but the event loop won't quit, as the Akonadi
> Session is still active. You can debug this bug trying to log
> communications between KMail and server:
> 
> export AKONADI_SESSION_LOGFILE=/tmp/akonadi.log
> kmail

I tried this, but /tmp/akonadi.log wasn't even created. Maybe my KMail 
is too old?

Anyway, before I looked up your message I ran akonadiconsole when KMail 
was stuck. In one of the many tabs in the Debugger tab (in a tab called 
"kmail2-<some number> (some hex number)") I found the following command 
(without reply):

785 UID FETCH 441172 FULLPAYLOAD ALLATTR EXTERNALPAYLOAD (UID REMOTEID 
REMOTEREVISION COLLECTIONID FLAGS SIZE DATETIME PLD:HEAD)


After shutting down and restarting KMail, I could reproduce the problem 
by selecting the same message (resp. the same folder in the problematic 
account; the message is selected automatically by KMail) that caused the 
problem the first time. This time I found the following in 
akonadiconsole

15 UID FETCH 441172 FULLPAYLOAD ALLATTR ANCESTORS 1 EXTERNALPAYLOAD (UID 
REMOTEID REMOTEREVISION COLLECTIONID FLAGS SIZE DATETIME 
ATR:ErrorAttribute) 
15 NO Unable to fetch item from backend (collection 0) : Unable to 
retrieve item from resource: Did not receive a reply. Possible causes 
include: the remote application did not send a reply, the message bus 
security policy blocked the reply, the reply timeout expired, or the 
network connection was broken. 
16 UID FETCH 441172 FULLPAYLOAD ALLATTR EXTERNALPAYLOAD (UID REMOTEID 
REMOTEREVISION COLLECTIONID FLAGS SIZE DATETIME PLD:HEAD)


Once the account goes bad, I can reproduce the problem after each 
restart of KMail simply by selecting the problematic folder.


I tried whether killing the problematic agent helps. If I do this then 
KMail no longer gets stuck when I select the problematic folder. But 
KMail cannot display the message either. In akonadiconsole I see

15 UID FETCH 441172 FULLPAYLOAD ALLATTR ANCESTORS 1 EXTERNALPAYLOAD (UID 
REMOTEID REMOTEREVISION COLLECTIONID FLAGS SIZE DATETIME 
ATR:ErrorAttribute) 
15 NO Unable to fetch item from backend (collection 0) : Unable to 
contact resource 
16 UID FETCH 441172 FULLPAYLOAD ALLATTR EXTERNALPAYLOAD (UID REMOTEID 
REMOTEREVISION COLLECTIONID FLAGS SIZE DATETIME PLD:HEAD) 
16 NO Unable to fetch item from backend (collection 0) : Unable to 
contact resource 
17 UID FETCH 441172 FULLPAYLOAD ALLATTR EXTERNALPAYLOAD (UID REMOTEID 
REMOTEREVISION COLLECTIONID FLAGS SIZE DATETIME PLD:HEAD) 
17 NO Unable to fetch item from backend (collection 0) : Unable to 
contact resource 

This makes sense because the agent has not been restarted.


Regards,
Ingo
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