Bug#900895: kmail: KMail malfunctioning: Red email folders, no emails can be viewed; "Unable to fetch item from backend (collection-1): Unable to contact resource"
I recorded another occurrence of this behaviour with the debugger in the
Akonadi Console. This time, below the output field on the "All" tab, the
following additional error messages gets displayed:
--- Quote Beginning ---
AgentBase(akonadi_maildir_resource_0): Verbindung zum Akonadi-Dienst kann
nicht hergestellt werden. => Can be translated as "Cannot establish connection
to Akonadi service"
NotificationManager::notify ( { Type: "Items" Operation: "Modify" Items: { {
ID: "32532" RemoteID: "1551182744.R329.punk" Remote Revision: "" Mime Type:
"message/rfc822" } } Session: "akonadi_maildir_resource_0" Resource:
"akonadi_maildir_resource_0" Destination Resource: "" Parent Collection: "9"
Parent Destination Collection: "-1" Parts: "QSet(PLD:HEAD, PLD:RFC822,
PLD:ENVELOPE)" Added Flags: "QSet()" Removed Flags: "QSet()" Added Tags:
"QSet()" Removed Tags: "QSet()" } )
NotificationManager::notify ( { Type: "Items" Operation: "Modify" Items: { {
ID: "32536" RemoteID: "1551196645.R430.punk:2,S" Remote Revision: "" Mime
Type: "message/rfc822" } } Session: "akonadi_maildir_resource_0" Resource:
"akonadi_maildir_resource_0" Destination Resource: "" Parent Collection: "7"
Parent Destination Collection: "-1" Parts: "QSet(PLD:HEAD, PLD:RFC822,
PLD:ENVELOPE)" Added Flags: "QSet()" Removed Flags: "QSet()" Added Tags:
"QSet()" Removed Tags: "QSet()" }
-- Quote End ----
Then I restarted Akonadi with "akonadictl restart" in a command shell window
and did not close this window, but provoked the behavior again. The console
window returned the following debugging information about the time when the
behaviour occurred again:
--- Quote Beginning ---
akonadicore_log: Invalid command, the world is going to end!
QIODevice::read (QLocalSocket): device not open
akonadi_maildir_resource: /build/akonadi-EKz4jf/akonadi-16.04.3/src/private/
protocol.cpp:1590: Akonadi::Protocol::HelloResponse::HelloResponse(const
Akonadi::Protocol::Command&): Zusicherung »d_func()->commandType ==
Command::Invalid || d_func()->commandType == (Command::Hello |
Command::_ResponseBit)« nicht erfüllt.
void Akonadi::Server::NotificationSource::serviceUnregistered(const QString&)
Notification source "akonadi_maildir_resource_0_4955_mdI52n" now serving: ()
ProcessControl: Application /usr/bin/akonadi_maildir_resource stopped
unexpectedly ( "Der Prozess ist abgestürzt" ) => Can be translated as "The
process has crashed"
Application '/usr/bin/akonadi_maildir_resource' crashed too often. Giving up!
Shutting down "/subscriber/akonadi_maildir_resource_0_4955_mdI52n" ...
Lost connection to resource
"org.freedesktop.Akonadi.Resource.akonadi_maildir_resource_0" , discarding
cached interface
Shutting down "akonadi_maildir_resource_0" ...
Shutting down "0x55b505adb7b0" ...
--- Quote End ---
This bug issue is a duplicate of
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900957
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