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mikb
Tux's lil' helper
Joined: 14 Dec 2005
Posts: 120
Location: Sydney Australia
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 Posted: Thu Dec 20, 2018 12:19 am Post subject: KDE: Akonadi Won't Start After Upgrade |
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A recent world update upgraded Akonadi to 18.12.0. After restart, Akonadi refused to start because it couldn't build the indexes for the database. MySQL was stopping with this error:
| Code: | | Sql error: Invalid default value for 'atime' QMYSQL: Unable to execute query |
After doing some googling, it seemed the standard response was "reinitialise your akonadi database from scratch".
For various historical reasons, I didn't want to do that. But I found this bug in KDE bugzilla: https://bugs.kde.org/show_bug.cgi?id=362580.
The problem lies with the atime column in the PimItemTable being defined to have a default of zero.
| Code: | | show create table PimItemTable; |
[ .. SNIP .. ]
| Code: | | `atime` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00', |
This is no longer acceptable to my current mysql instance (5.7.24). I believe this is a change in behavior with MySQL 5.7.
Surprisingly, this can be fixed without rebuilding the database from scratch.
| Code: | # mysql -u root -p
mysql> connect akonadi;
mysql> alter table PimItemTable change atime atime timestamp not null default current_timestamp();
Query OK, 0 rows affected (3.78 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> show create table PimItemTable;
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[ .. SNIP .. ]
| Code: | | `atime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, |
The mysql indexes now build, and akonadi starts correctly!
_________________
With sufficient thrust, pigs fly just fine (RFC 1925, apparently talking about Gentoo) |
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Mr. Chauv
n00b
Joined: 14 Sep 2003
Posts: 37
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| Posted: Mon Sep 16, 2019 7:18 pm Post subject: |
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You, Sir, deserve three Internet!
Thank you so much for posting this result here - it helped me alot!
For any other noob still stumbling over this problem:
If "connect akonadi" is not working for you, then:
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# ps axu | grep mysql
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Look for a line similar to
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/usr/sbin/mysqld --defaults-file=/home/you/.local/share/akonadi/mysql.conf --datadir=/home/you/.local/share/akonadi/db_data/ --socket=/tmp/runtime-you/akonadi/default/mysql.socket --pid-file=/tmp/runtime-you/akonadi/default/mysql.pid
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Then killl it, and start it manually:
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/usr/sbin/mysqld --defaults-file=/home/you/.local/share/akonadi/mysql.conf --datadir=/home/you/.local/share/akonadi/db_data/ --socket=/tmp/asd.socket
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You can then connect via
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mysql -S /tmp/asd.socket
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and run the 'alter table' query.
CTRL-D out of mysql and "kill <PID>" your manual mysqld instance. Afterwards "akonadictl start" should do what it's supposed to. |
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