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DeveloperACE
Asked: 2018-06-22 12:10:13 +0800 CST

KDE Kontact 应用程序无法启动。Akonadi 个人信息管理服务无法运行

  • 772

在寻找一套好的邮件/联系人/日历 .etc 应用程序时，我尝试了 KDE 的Kontact并在启动几乎所有捆绑的应用程序（kmail、korganiser .etc）时遇到了以下问题。应用程序会显示一个像图像 1 一样的加载屏幕，然后它会在图像 2 中显示错误，说The Akonadi personal information management service is not operational.或类似的东西。

图 1： 加载...

图 2： 错误

这是我提供的系统信息screenfetch：

 OS: KDE neon 5.12
 Kernel: x86_64 Linux 4.13.0-45-generic
 Uptime: 4h 37m
 Packages: 2060
 Shell: bash 4.3.48
 Resolution: 1280x800
 DE: KDE 5.47.0 / Plasma 5.13.1
 WM: KWin
 GTK Theme: Breeze [GTK2/3]
 Icon Theme: breeze
 Font: Noto Sans Regular
 CPU: Intel Core2 Duo P8700 @ 2x 2.534GHz [36.0°C]
 GPU: intel
 RAM: 1802MiB / 2946MiB

我已经尝试卸载（并重新安装）Kontact 套件（无论是否--purge带有apt和由于某种原因，当我单击错误屏幕上提供的“详细信息”按钮时，它似乎没有任何作用。

我已经将自检报告文件保存到我的桌面，然后忘记了它（我的编辑）。

kde5 kde-neon

2 个回答

  1. Best Answer

    解决方案

    错误日志显示这些 K* 应用程序所需的服务器的 akonadi 版本mysql正在尝试访问，~/.local/share/akonadi/db_data/ 但db_data不存在，因此它会抛出一个错误touch ~/nonexistent_dir/file.txt。

    要解决，只需运行以下命令。 cd ~/.local/share/akonadi/; mkdir db_data

    解释

    在互联网上进行了大量挖掘之后（有大量信息，但其中大部分是关于 Akonadi 类似但不相同的问题的不完整/未解决的论坛主题），我能够从 KDE 中找到Akonadi的一般摘要，其中是我自己调查的一个很好的开始。

    玩弄了链接中提到的命令后，我得到了以下输出（我的编辑）：

    $ akonadictl start
$ Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
mysqld: [ERROR] Could not open required defaults file: /home/[my username]/.config/akonadi/
mysqld: [ERROR] Fatal error in defaults handling. Program aborted!
org.kde.pim.akonadiserver: database server stopped unexpectedly
org.kde.pim.akonadiserver: Database process exited unexpectedly during initial connection!
org.kde.pim.akonadiserver: executable: "/usr/sbin/mysqld-akonadi"
org.kde.pim.akonadiserver: arguments: ("--defaults-file=/home/[my username]/.local/share/akonadi/mysql.conf", "--datadir=/home/[my username]/.local/share/akonadi/db_data/", "--socket=/tmp/akonadi-[my username].UXCgLp/mysql.socket", "--pid-file=/tmp/akonadi-[my username].UXCgLp/mysql.pid")
org.kde.pim.akonadiserver: stdout: ""
org.kde.pim.akonadiserver: stderr: "mysqld: Can't change dir to '/home/[my username]/.local/share/akonadi/db_data/' (Errcode: 2 - No such file or directory)\n2018-06-21T19:34:18.989616Z 0 [Warning] The syntax '--log_warnings/-W' is deprecated and will be removed in a future release. Please use '--log_error_verbosity' instead.\n2018-06-21T19:34:18.989703Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).\n2018-06-21T19:34:18.991172Z 0 [Warning] Can't create test file /home/[my username]/.local/share/akonadi/db_data/[my hostname].lower-test\n2018-06-21T19:34:18.992274Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.22-0ubuntu0.16.04.1) starting as process 11859 ...\n2018-06-21T19:34:19.006500Z 0 [Warning] Can't create test file /home/[my username]/.local/share/akonadi/db_data/[my hostname].lower-test\n2018-06-21T19:34:19.006549Z 0 [Warning] Can't create test file /home/[my username]/.local/share/akonadi/db_data/[my hostname].lower-test\n2018-06-21T19:34:19.006623Z 0 [ERROR] failed to set datadir to /home/[my username]/.local/share/akonadi/db_data/\n2018-06-21T19:34:19.006632Z 0 [ERROR] Aborting\n\n2018-06-21T19:34:19.006658Z 0 [Note] Binlog end\n2018-06-21T19:34:19.006726Z 0 [Note] /usr/sbin/mysqld: Shutdown complete\n\n"
org.kde.pim.akonadiserver: exit code: 1
org.kde.pim.akonadiserver: process error: "Unknown error"
mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/tmp/akonadi-[my username].UXCgLp/mysql.socket' (2)'
Check that mysqld is running and that the socket: '/tmp/akonadi-[my username].UXCgLp/mysql.socket' exists!
org.kde.pim.akonadiserver: Failed to remove runtime connection config file
org.kde.pim.akonadicontrol: Application 'akonadiserver' exited normally...

    这产生了一些有趣的行。有问题的是org.kde.pim.akonadiserver: stderr: "mysqld: Can't change dir to '/home/[my username]/.local/share/akonadi/db_data/' (Errcode: 2 - No such file or directory)。对我来说，这看起来就像程序试图写入它无权访问的目录并且抛出错误，就像touch ~/nonexistent_dir/file.txt会一样。

    所以我跑了cd ~/.local/share/akonadi/; mkdir db_data一遍又一遍。巴姆它奏效了。

    • 6

  2. 类似的问题，不同的解决方案。我的诊断是这样的：

    $ akonadictl --verbose start                                      
....
org.kde.pim.akonadiserver: Executing: "/usr/sbin/mysqld-akonadi" "--defaults-file=/home/dargaud/.local/share/akonadi/mysql.conf --datadir=/home/dargaud/.local/share/akonadi/db_data/ --socket=/run/user/10705/akonadi/mysql.socket --pid-file=/run/user/10705/akonadi/mysql.pid"
org.kde.pim.akonadiserver: database server stopped unexpectedly

$ tail /var/log/syslog                      
audit: type=1400 audit(1593423663.888:404): apparmor="DENIED" operation="mknod" profile="/usr/sbin/mysqld" name="/home/dargaud/.local/share/akonadi/db_data/mysqld_tmp_file_case_insensitive_test.lower-test" pid=156675 comm="mysqld-akonadi" requested_mask="c" denied_mask="c" fsuid=10705 ouid=10705

    解决方案，将以下两行添加到 mysqld 的 apparmor 配置文件中：

    $ sudo nano /etc/apparmor.d/usr.sbin.mysqld
/{,var/}run/user/[0-9]*/akonadi/** rw,
/home/*/.local/share/akonadi/** rwk,

    其次是：

    $ sudo systemctl restart apparmor.service
$ akonadictl --verbose start
    • 3

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