Bug 442451 - Mysql-Internal crash
Summary: Mysql-Internal crash
Status: RESOLVED FIXED
Alias: None
Product: digikam
Classification: Applications
Component: Database-Mysql (show other bugs)
Version: 7.3.0
Platform: Other Linux
: NOR crash
Target Milestone: ---
Assignee: Digikam Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-09-14 20:21 UTC by diekuhrannte@web.de
Modified: 2022-06-24 22:20 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In: 7.5.0
Sentry Crash Report:


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Description diekuhrannte@web.de 2021-09-14 20:21:42 UTC
I am new to digiKam.
I currently use the database Type: SQLite and everything works quite well. But because I manage about 120,000 photos, I also tried the Mysql-Internal recommended by digiKam, but this makes the program very unstable, it crashes very often. 
My question: Can I continue to use the SQLite without hesitation, although I want to manage more than 100,000 photos or would it make sense to get the Mysql to work?

System: Manjaro Linux XFCE
Comment 1 diekuhrannte@web.de 2021-09-14 20:22:07 UTC
I am new to digiKam.
I currently use the database Type: SQLite and everything works quite well. But because I manage about 120,000 photos, I also tried the Mysql-Internal recommended by digiKam, but this makes the program very unstable, it crashes very often. 
My question: Can I continue to use the SQLite without hesitation, although I want to manage more than 100,000 photos or would it make sense to get the Mysql to work?
Comment 2 caulier.gilles 2021-09-14 20:23:22 UTC
Which Mysql | Mariadb version did you use exactly ?
Comment 3 diekuhrannte@web.de 2021-09-14 20:33:53 UTC
Unfortunately, I don't really understand your question, (? Mariabdb?) but maybe that's what you were asking for:
Mysql-Internal
mysql_install_db
mysqladmin
mysqld
Comment 4 Maik Qualmann 2021-09-15 05:44:38 UTC
*** Bug 442450 has been marked as a duplicate of this bug. ***
Comment 5 Maik Qualmann 2021-09-15 05:51:15 UTC
You can also use SQLite for 100,000+ photos. However, MySQL internally is not unstable either; many users use it. first we need the version number of mysql, as requested by Gilles. Enter the following in a terminal and post the output here "mysql -V".

Maik
Comment 6 diekuhrannte@web.de 2021-09-15 08:27:49 UTC
Hello Maik Quallmann, thanks for the hint on how I can find out the version. Here it is:
mysql  Ver 15.1 Distrib 10.6.4-MariaDB, for Linux (x86_64) using readline 5.1
Comment 7 Maik Qualmann 2021-09-15 09:56:14 UTC
MySQL/MariaDB version 10.6.X does not work with the Qt-MySQL driver. See the story in the duplicate bug report. There is already a fix in current Qt versions. You would have to go back to a MySQL/MariaDB version 10.5.X.

Maik

*** This bug has been marked as a duplicate of bug 440296 ***
Comment 8 diekuhrannte@web.de 2021-09-15 13:09:29 UTC
Hello  Maik Qualmann,
thank you very much for the help. Only, please, note, I am only since 10 months with Linux and completely overwhelmed by this infos. Still I have no idea how "to to go back to a MySQL/MariaDB version 10.5.X". And how to avoid that an update undoes everything again.
I will try to familiarize myself with it. And I would like to mention that I am very enthusiastic about the Linux community and OpenSource: simply great.
My question: Can I stay with SQLite without hesitation, or: When is it important to switch to Mysql-Internal?
Comment 9 Maik Qualmann 2021-09-15 16:51:00 UTC
Keep using SQLite, that's no problem at all.
You have to wait until your Linux distribution provides corrected Qt packages via updates. The problem with the current MySQL/MariaDB version and the Qt-driver does not only affect digiKam.

Maik
Comment 10 diekuhrannte@web.de 2021-09-15 18:04:53 UTC
Hello Maik,
Your info I understood well, thank you very much.
Comment 11 tom 2021-09-16 06:12:12 UTC
If you are on ArchLinux (and friends like Manjaro) you can do:

# downgrade mariadb mariadb-clients mariadb-libs

(as root)
Comment 12 caulier.gilles 2021-12-15 20:46:07 UTC
Fixed with #440296
Comment 13 diekuhrannte@web.de 2022-06-14 21:06:10 UTC
Unfortunately, there is again an error with mariadb.
When I update mariadb from 10.06.5-2 to 10.8.3-1, then digiKam no longer works when i had chosen mysql.
Comment 14 Maik Qualmann 2022-06-15 11:23:00 UTC
digiKam and other software currently does not work with MariaDB-10.8.x. Keep in mind that MariaDB-10.8 is a development release and is not meant to be used in production environments. Here is a bug report from Akonadi with the same problem:

https://bbs.archlinux.org/viewtopic.php?id=277078

Maik
Comment 15 tom 2022-06-24 22:20:56 UTC
On Tue, 14 Jun 2022 21:06:10 +0000
diekuhrannte@web.de wrote:

> https://bugs.kde.org/show_bug.cgi?id=442451

Michael war fleißig... gut!