https://bugs.kde.org/show_bug.cgi?id=423684
Bug ID: 423684
Summary: Akonadi crashing due to MySQL Socket is gone
Product: Akonadi
Version: 5.13.3
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: server
Assignee: kdepim-bugs@kde.org
Reporter: malte.ge...@googlemail.com
Target Milestone: ---
After a while akonadi is crashing, because of a communication error. The MySQL
sockets seems to disappear, even if the MySQL server is still running.
# MySQL Server still running after Akonadi crash
/usr/sbin/mysqld-akonadi
--defaults-file=/home/maltegerth/.local/share/akonadi/mysql.conf
--datadir=/home/maltegerth/.local/share/akonadi/db_data/
--socket=/run/user/1000/akonadi/mysql.socket
--pid-file=/run/user/1000/akonadi/mysql.pid
# Socket file is missing
$ ll /run/user/1000/akonadi/mysql.socket
ls: cannot access '/run/user/1000/akonadi/mysql.socket': No such file or
directory
# Akonadi error log
2020-06-29T21:17:29 [INFO ] org.kde.pim.akonadiserver: Starting up the Akonadi
Server...
2020-06-29T21:18:34 [CRITICAL] org.kde.pim.akonadiserver: Failed to connect to
database!
2020-06-29T21:18:34 [CRITICAL] org.kde.pim.akonadiserver: Database error:
"Can't connect to local MySQL server through socket
'/run/user/1000/akonadi/mysql.socket' (2) QMYSQL: Unable to connect"
2020-06-29T21:18:40 [INFO ] org.kde.pim.akonadiserver: Shutting down
AkonadiServer..
# MySQL error log
2020-06-29 21:17:29 0 [ERROR] mysqld-akonadi: Can't lock aria control file
'/home/maltegerth/.local/share/akonadi/db_data/aria_log_control' for exclusive
use, error: 11. Will retry for 30 seconds
2020-06-29 21:18:00 0 [ERROR] mysqld-akonadi: Got error 'Could not get an
exclusive lock; file is probably in use by another process' when trying to use
aria control file
'/home/maltegerth/.local/share/akonadi/db_data/aria_log_control'
2020-06-29 21:18:00 0 [ERROR] Plugin 'Aria' init function returned error.
2020-06-29 21:18:00 0 [ERROR] Plugin 'Aria' registration as a STORAGE ENGINE
failed.
2020-06-29 21:18:00 0 [Note] InnoDB: Using Linux native AIO
2020-06-29 21:18:00 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic
builtins
2020-06-29 21:18:00 0 [Note] InnoDB: Uses event mutexes
2020-06-29 21:18:00 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-06-29 21:18:00 0 [Note] InnoDB: Number of pools: 1
2020-06-29 21:18:00 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-06-29 21:18:00 0 [Note] InnoDB: Initializing buffer pool, total size =
128M, instances = 1, chunk size = 128M
2020-06-29 21:18:00 0 [Note] InnoDB: Completed initialization of buffer pool
2020-06-29 21:18:00 0 [Note] InnoDB: If the mysqld execution user is
authorized, page cleaner thread priority can be changed. See the man page of
setpriority().
2020-06-29 21:18:00 0 [ERROR] InnoDB: Unable to lock ./ibdata1 error: 11
2020-06-29 21:18:00 0 [Note] InnoDB: Check that you do not already have another
mysqld process using the same InnoDB data or log files.
2020-06-29 21:18:00 0 [Note] InnoDB: Retrying to lock the first data file
2020-06-29 21:18:01 0 [ERROR] InnoDB: Unable to lock ./ibdata1 error: 11
2020-06-29 21:18:01 0 [Note] InnoDB: Check that you do not already have another
mysqld process using the same InnoDB data or log files.
2020-06-29 21:18:02 0 [ERROR] InnoDB: Unable to lock ./ibdata1 error: 11
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