Archive:Http://userbase.kde.org/Akonadi 4.4/Troubleshooting/de

Einführung

Diese Seite hilft vor allem bei der Fehlersuche die Akonadi betrifft, da es unvermeidliche Störungen in der frühen Phase der Migration gibt. Für viele Menschen wird es die ersten Anzeichen von Akonadi Aktivitäten in KDE SC 4.4 geben und viele werden davon verwirrt werden. Für eine kurze Beschreibung des Zwecks von Akonadi sehen Sie sich diesen Glossareintrag an. Außerdem finden Sie nützliche Links zu weiteren Informationen. Nachdem unvermeidlichen Anlaufschwierigkeiten vorbei sind, wird Akonadi ein Kraftwerk sein, das von vielen Anwendungen genutzt werden kann.

Die Struktur verstehen

Sie können natürlich auch einfach Kontact verwenden, um ihr Adressbuch zu verwalten, aber wenn Sie ein Backup-System verwenden, möchten Sie wissen, wo ihre Daten sind und wie diese gehandhabt werden. Die Seite Akonadi und Adressbuch hilft hier weiter.

Tipps zur Problemlösung

• Bei der Meldung von Problemen mit dem Akonadi-Server, fügen Sie immer den umfassenden Selbsttest-Bericht bei. Dieser Bericht kann von dem Selbstest-Dialog entnommen werden, der immer dann angezeigt wird, wenn der Akonadi-Server nicht erfolgreich gestartet werden konnte. Sie können den Selbsttest in dem Kcmmodul finden, dass über 'kcmshell4 kcm_akonadi' erreichbar ist.

• Das Starten des Akonadi-Servers über die Kommandozeile kann weitere hilfreiche Informationen geben. Dies können Sie durch Ausführen von akonadictl start in eine Konsole erreichen. Analog mit akonadictl stop kann der Akonadi-Server gestoppt werden. akonadictl status gibt weitere hilfreiche Informationen.

Allgemeine Probleme

Kontact startet nicht - und gibt auch keine weiteren Informationen

Wenn Kontact nicht startet und Sie auch keine Fehlermeldungen sehen, überprüfen Sie, ob Akonadi läuft. Akonadi sollte auf Nachfrage starten. Wenn dies bei ihnen nicht der Fall ist, müssen Sie es starten bevor Kontact gestartet wird, falls Sie irgendwelche migrierten Ressourcen haben (wahrscheinlich KAdressBook). Verwenden Sie das Akonadi-Miniprogramm (starten Sie dieses durch die Eingabe 'akonadi' in KRunner oder geben Sie die Befehle in die Konsole ein.

Kontact staret nicht - Version II

Kontact ist dafür bekannt, das es nach einem Update Probleme bereitet. Wenn dies geschieht, starten Sie KMail, KOrganizer oder eine der sonstigen Anwendungen aus KRunner (oder die Konsole). Die Chancen sind hoch, dass diese als eigenständige Anwendungen arbeiten, während Sie weiter nachforschen können, was schief gegangen ist. Dies betrifft hauptsächlich die Version 4.4.0.

Verzeichnis nicht gefunden: "/Local"

Einige Leute haben diesen Fehler gemeldet, wenn Kontact nicht startet. Es scheint einen Bug in der Migration zu geben, der KMail anweist nach lokalen E-Mails in dem Verzeichnis ~/.local/share/Local zu suchen. Einem Verzeichnis das noch nicht eingerichtet ist. Die Lösung dafür ist, es nicht zu versuchen es zu beheben, sondern, wenn KMail/Kontact geschlossen sind, das Akonadi Kontrollmodul zu öffnen (über KRunner, Alt-F2 oder 'akonadiconsole' in der Konsole) und entfernen Sie die Ressource die für die lokale Mail zuständig ist. Jetzt sollten Sie feststellen, dass Sie Kontact oder KMail starten können und eine neue Ressource erstellt wird die auf ~/.local/share/local-mail zeigt.

Es gibt andere neue Verzeichnisse unter ~/.local/share/

Ja. Wenn ihr Adressbuch korrekt migriert wurde, ist eine neue Ressource in ~/.local/share/contacts/ erstellt worden.

Was sind /usr/bin/akonadi_maildir_resource und /usr/bin/akonadi_maildispatcher_agent?

Die akonadi_maildir_resource wird automatisch durch den akonadi_maildispatcher_agent erstellt. Letztere wird immer zusammen mit dem Akonadi-Server gestartet, da sie grundlegende Funktionalitäten zur Verfügung stellt (z.B. Senden von Nachrichten) die von allen Mail-Anwendungen verwendet werden die auf Akonadi basieren (werden). Daher ist es in Ordnung das diese beiden laufen, als Anwender können Sie sie einfach ignorieren. Die automatisch generierte akonadi_maildir_resource wird immer auf ~/.local/share/local-mail/ verweisen, welches ihr 'Lokaler Ordner' Konto ist, wo Ihre lokalen Ordner und E-Mails gespeichert werden.

Zu diesem Zeitpunkt, in KDE SC 4.4, ist die E-Mail noch nicht migriert.

Nepomuk Indexing Agents wurden deaktiviert

Kontact arbeitet jetzt, aber Sie sehen immer diesen Hinweis:

Der häufigste Grund für diesen Hinweis ist, dass Nepomuk in den Systemeinstellungen deaktiviert ist. Bitte versuchen Sie es in Systemeinstellungen -> Erweitert -> Desktopsuche zu aktivieren in dem Sie 'Nepomuk-Semantik-Dienste aktivieren' auswählen und auf 'Anwenden' klicken.

Wenn dies nicht hilft (oder wenn die Option bereits aktiviert war, als die Fehlermeldung kam) und wenn Sie zuvor Vorabversionen von KDE SC 4.4 verwendet haben, können Sie durch eine Änderung des Datenbank-Layout betroffen sein (aufgrund einer Aktualisierung der Virtuoso Datenbank-Server von Version 5 auf Version 6; Produktions-Releases von KDE 4.4 SC werden mit Virtuoso Version 6 ausgeliefert). Die folgenden Befehle sollten es wieder zum laufen bekommen:

qdbus org.kde.NepomukServer /nepomukserver org.kde.NepomukServer.quit

rm -r ~/.kde/share/apps/nepomuk

rm -r ~/.kde4/share/apps/nepomuk

nepomukserver

Beachten Sie, dass die obigen Befehle Nepomuk nicht permanent aktivieren werden. Wenn es nicht aktiviert ist, müssen Sie dies in den Systemeinstellungen durchführen.

Ein laufendes Nepomuk ist notwendig, um ein funktionierendes Akonadi, und damit ein funktionierendes Kontact zu haben. Sie können jedoch den Strigi Datei-Indexer deaktivieren, das dieser für Kontact nicht benötigt wird. Strigi Datei-Indizierung ist nur für die Desktopsuche, die für Kontact nicht notwendig ist. Stellen Sie nur sicher das für Kontact Nepomuk selbst ordnungsgemäß läuft.

In Kontact wird Nepomuk für viele verschiedene Dinge verwendet, angefangen von der Anzeige der anstehenden Geburtstage, über den Umgang mit Frei / Gebucht-Listen bis zur Anzeige des Fotos eines Kontakts im Nachrichten-Betrachter. Wenn Nepomuk nicht ausgeführt wird, werden mehrere verschiedene Dinge in Kontact aufhören zu arbeiten. Der Hinweis ist dazu da Sie vor der eingeschränkten Funktionalität zu warnen. Aktivieren von Nepomuk, wie oben beschrieben, behebt das Problem.

You can check if Nepomuk is correctly running by typing akonadictl status.

I want to use my current Address Book and Organizer - Can I?

Yes. When you use the Akonadi Console to add a resource it allows you to choose as Standard Addressbook - point that to your std.vcf should work fine. Migration does not destroy your old addressbook. You can continue to use it, though you will lose any benefits that Akonadi can bring. Alternatively you can have both an Akonadi addressbook and your original one, for a time, if you feel safer that way.

I can't see any details in my Address Book

At the moment, the cause of this is not identified, but the cure is simple. Close Kontact, and start KAddressBook as a stand-alone application. After you close it you will be able to use it within Kontact. It seems that something is not being triggered when Kontact launches, and I expect this to be identified and fixed soon. This seems to mainly affect version 4.4.0.

My contacts don't show when I use the Select button in KMail

Check System Settings > Advanced tab > KDE Resources. Make sure that your Akonadi controlled address book(s) are listed there - add them if necessary. At the same time, it's a good idea to make your main Akonadi addressbook, usually called Personal Contacts, is set to be the default. More details of how this can be found in here.

How do I get my Groupware addressbook back?

Two solutions: using the old framework or the new one.

Old framework: In akonadiconsole, add a "KDE Address Book (traditional)". The KDE Address Book means you can set up old kresources for Akonadi. In the configuration of "KDE Address Book (traditional)", you point it to an "IMAP over KMail" KResource and in KMail, the groupware options should be enabled. This should work for Kolab, eGroupware and similar addressbooks - you will need to check the options to make sure that the correct type is selected.

New framework (only tested with Kolab): In the Akonadi configuration module (run 'kcmshell4 kcm_akonadi' to see it), add an "IMAP E-Mail Server" resource, and set up your mail server name, username and password, then click Auto-Detect. Then add a Kolab resource. The next step is to wait for the imap resource to synchronize, this can take quite a long time. The status will appear in the Akonadi configuration module. If nothing happens, try restarting akonadiserver. After some time the Kolab addressbook(s) should appear in KAddressBook.

You experience long delays when sending mail

This is accompanied by KMail freezing until the mail is actually dispatched.

A bug has been found in the way Nepomuk checks addresses, which can cause huge delays. This is fixed for SC 4.4.1. If you cannot get 4.4.1 yet, there is this work-around:

Close Kontact or KMail and KAddressbook if you are running stand-alone apps. Disable Strigi in SystemSettings. Stop Nepomuk, delete the database and restart nepomukserver. The actual commands you need are (as user)

qdbus org.kde.NepomukServer /nepomukserver org.kde.NepomukServer.quit

rm -r ~/.kde/share/apps/nepomuk

rm -r ~/.kde4/share/apps/nepomuk

nepomukserver

This will, of course, wipe out all the database, including any tags you've added. In theory, I understand that it's possible to do a more selective wipe of the database. If this matters to you you can find the instructions at this page

Some Technical Issues

Nepomuk

Starting with KDE 4.4, it is required that Nepomuk is running in order for Akonadi to work correctly. Akonadi will check this and display an error dialog on startup if this is not the case.

Nepomuk only works with the Virtuoso backend. You can check whether the Nepomuk is running with the correct backend by using the Akonadi self-test dialog, as described above.

Although Nepomuk is required to be running, you can still disable Strigi file indexing, which is usually the most resource-intensive part of the Nepomuk framework.

Apparmor

Some distributions using Apparmor have it set up in a way that prevents Akonadi from running its internal database server. This can result in a variety of fuzzy error messages, including but not limited to the following:

• unknown error 255 when running akonadictl
• "DB error: 'Could not open required defaults file: /home/$username/.local/share/akonadi/mysql.conf"

You can solve this by running aa-complain mysqld with root privileges then reload apparmor. On Kubuntu this is:

sudo aa-complain mysqld
sudo /etc/init.d/apparmor reload

Note that you might be using Apparmor even if it does not show up in the process list.

Also note that some distributions ship an additional mysqld binary called mysqld-akonadi which has AppArmor set up correctly. If that's the case on your system and you see this problem nevertheless, there are two possible reasons:

• Akonadi still uses mysqld instead of mysqld-akonadi. You can change that in Systemsettings -> Advanced -> Akonadi -> Server configuration.
• AppArmor is not setup correctly for mysqld-akonadi either. Try running the aa-complain command noted above with mysqld-akonadi instead of mysqld.

---

You will also experience this problem if you are running an encrypted home directory using encryptfs combined with AppArmor as the Akonadi apparmor profile currently does not account for an ecrypted home (common with Ubuntu Jaunty users). Error messages with include:

• dmesg produces:

     ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-13]
     ecryptfs_create: Failed to create file inlower filesystem

• Akonadi will list the following errors:

     Akonadi server process not registered at D-Bus

The fix is to edit the following file "/etc/apparmor.d/usr.sbin.mysqld-akonadi". Below the line:

      @{HOME}/.local/share/akonadi/** rwk,

Add a new line:

      @{HOME}/.Private/** rwk,

Restart apparmor and restart akonadi.

Missing Prerequisite

To use Akonadi you need to have the following packages installed (names might differ depending on your distribution):

• The MySQL server (called mysql on openSUSE)
• The Qt4 MySQL plugin (called libqt4-sql-mysql on openSUSE)

If you compile Qt4 yourself, make sure to tell the configure script to build in MySQL support by passing it the '-plugin-sql-mysql' option. If configure cannot locate the necessary MySQL client code (i.e, says "MySQL support cannot be enabled due to functionality tests") then ensure that the corresponding package is installed (typically called [lib]mysql[client]-dev[el]). Also, depending on the install location of the MySQL headers, additional parameters to configure might be needed (eg. -I /usr/include/mysql on OpenSuse).

If you get the Qt4 direct from Nokia, such as a download of

 qt-sdk-linux-x86_64-opensource-2009.05.bin

you will ( by the command "akonadictl start") get an error at Test 1:

 Database driver not found.
 Details: The QtSQL driver 'QMYSQL' is required by your current Akonadi server configuration.
 The following drivers are installed: QSQLITE.
 Make sure the required driver is installed.

The driver you need is libqsqlmysql.so

Unfortunately this driver is not part of the distribution (until january 2010). You need to compile the source. Download it

 qt-everywhere-opensource-src-4.6.0.tar.bz

configure and make as above. But the make install doesn't copy the driver. So you have to copy it by yourself:

cp <qt-src-dir>/qt-everywhere-opensource-src-4.6.0/plugins/sqldrivers/libqsqlmysql.so /usr/local/bin/sqldrivers/

But the Revision 4.6.1, such as qt-sdk-linux-x86_64-opensource-2010.xx.bin has the driver you needed.

Environment Setup

The Akonadi server searches for Akonadi agents and resources in the paths defined in the XDG_DATA_DIRS environment variable. If Akonadi complains about not finding agents or resources, check if this variable is set correctly. Also keep in mind that even if set in a current console session, it might not have been set when starting the server. Starting the server manually in the current console session excludes this cause.

mysqld: unknown variable 'innodb_file_per_table=1'

If the MySQL server log contains the following error: [ERROR] /usr/libexec/mysqld: unknown variable 'innodb_file_per_table=1' [ERROR] Aborting

then your MySQL server was built without the InnoDB support which is required by Akonadi.

Table 'mysql. servers' doesn't exist

If MySQL server log contains the following error: [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist [ERROR] Cannot open mysql.db [ERROR] Cannot open mysql.user [ERROR] Cannot open mysql.event then, most probably, you don't have your MySQL configuration file in place. Copy it from /usr/share/config/akonadi/mysql-global.conf into ~/.config/akonadi/mysql-local.conf. (For debian and openSuSE users the file ist located in /etc/akonadi/mysql-global.conf). Then open it and uncomment the line sql_mode=strict_trans_tables. If, after that, you get the following errors: [ERROR] Plugin 'InnoDB' init function returned error. [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. [ERROR] Unknown/unsupported table type: innodb [ERROR] Aborting then in the same file find the line that starts just like the one above (which you have uncommented), but has additional parameters, separated by commas (something like sql_mode=strict_trans_tables,strict_all_tables, ...etc). Comment the shorter sql_mode=... line and uncomment the longer one.

On openSUSE 11.2 running the command mysql_install_db --datadir=$HOME/.local/share/akonadi/db_data/ will fix this problem.

Kubuntu 10.4 Upgrade

This is a summary of other entries here for those upgrading from Kubuntu 9.10 to 10.4 who may have been using a personal package archive (PPA) for KDE 4.3 for bug fixes.

Install missing prerequisites. Remove previous akonadi cache. Start the akonadi service. Install the database. Upgrade the database. Stop and restart the akonadi service.

sudo apt-get install virtuoso-server mysql-server-5.1

rm -r $HOME/.local/share/akonadi

akonadictl start

mysql_install_db --datadir=$HOME/.local/share/akonadi/db_data/

mysql_upgrade --socket=$HOME/.local/share/akonadi/db_misc/mysql.socket

akonadictl stop

akonadictl start

The mysql_install_db command above will report something like what follows, which you can safely ignore: Installing MySQL system tables... 100501 18:04:30 [Warning] Can't create test file /home/[userid]/.local/share/akonadi/db_data/[hostname].lower-test

Reference: forum.kde.org Akonadi 1.2.1 - some issues

KAddressBook upgrade

In addition to the Kubuntu 10.4 remedy above, problems trying to add a Vcard directory may require

rm -rf $HOME/.config/akonadi

while Akonadi is not running.

Can't initialize character set latin1

If you get the following error when starting Akonadi:

Character set 'latin1' is not a compiled character set and is not specified in the '/usr/share/mysql/charsets/Index.xml' file Nepomuk QueryServer interface not available! Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString) DataStore::unhideAllPimItems() Character set 'latin1' is not a compiled character set and is not specified in the '/usr/share/mysql/charsets/Index.xml' file Database error: Cannot open database. Last driver error: "QMYSQL: Unable to connect" Last database error: "Can't initialize character set latin1 (path: /usr/share/mysql/charsets/)" Database error: Cannot open database. Last driver error: "QMYSQL: Unable to connect" Last database error: "Can't initialize character set latin1 (path: /usr/share/mysql/charsets/)"

then you're probably using a MySQL server which has a version > 5.1.42. There is a known regression in MySQL 5.1.43 and 5.1.44 which prevents MySQL from starting.

See the bug report for more details.

Restarting after a previous error

If you had problems starting Akonadi and fixed those (such as a missing package or the Apparmor problem) make sure that the Akonadi server is completely shut down before trying to start it again, by calling akonadictl stop on the command line. You can confirm that it was indeed shut down completely by running akonadictl status.

Under some circumstances the Akonadi server can be stuck in a partially running state after a failure which will prevent the next attempt to start it to fail as well. Please file a bug report if you run into this problem including the self-test report of the initial problem.

The so-called "Gentoo-Assert"

That's an especially nasty problem that so far only affects users of source-based distributions, most prominently Gentoo. It is named after MySQL assertions like the following example and is most likely caused by a MySQL protocol mismatch between the MySQL server and the client library or the Qt MySQL driver.

akonadiserver: libmysql.c:4301: setup_one_fetch_function: Assertion

`param->buffer_length != 0' failed.

It is extremely hard to diagnose as the assertion mentioned above are only triggered sometimes. Instead you'll get a wide range of weird symptoms:

• ASAP protocol logs show successful creation of objects which are supposedly no longer available when the next commands accesses them again.
• SQL protocol logs show INSERT or UPDATE commands with values that mismatch the corresponding column types and nevertheless succeed.
• SQL protocol logs showing large apparently random record ids which are nevertheless considered valid.

References:

• http://forum.kde.org/viewtopic.php?f=20&t=61738
• http://bugs.gentoo.org/show_bug.cgi?id=267513
• https://bugs.kde.org/202623 (contains a possible solution)
• http://bbs.archlinux.org/viewtopic.php?id=78358

Possible solution: Rebuild the Qt MySQL driver after upgrading MySQL (which most likely caused this problem in the first place).