https://bugs.kde.org/show_bug.cgi?id=419429
Bug ID: 419429
Summary: tags:/ url creates huge IO load and temporarily eats
up all disk space during thumbnail creation
Product: dolphin
Version: 19.12.3
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: dolphin-bugs-n...@kde.org
Reporter: bernhard+...@scheirle.de
CC: kfm-de...@kde.org
Target Milestone: ---
SUMMARY
Opening a "tags:/" url in dolphin creates huge IO load and temporarily eats up
all disk space while thumbnails are created.
STEPS TO REPRODUCE
1. Have 2 HDDs (sda and sdb) [Not sure if this is required]
The OS and especially /tmp/ is located on sda.
User data is on sdb.
2. Tag large files (>100MB; The larger the easier to reproduce) on sdb with a
tag containing fragments: MyTag/MySubTag
3. Open "tags:/MyTag/MySubTag/
OBSERVED RESULT
Dolphin creates new thumbnails. (Even if the thumbnails were previously already
created by opening the original file location (on sdb).)
To create the thumbnails Dolphin copies the original files to
/tmp/dolping.<xyz.part thereby creating a huge IO load and likely fills up sda
completely.
A full /tmp/ directory further then leads to all kind of other issues.
EXPECTED RESULT
* Don't copy files to /tmp/ to create thumbnails.
* Don't create new thumbnails if already created for the original file.
SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.18
KDE Plasma Version: 5.18.3
KDE Frameworks Version: 5.68.0
Qt Version: 5.14.1
Kernel Version: 4.15.0-91-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-3770 CPU @ 3.40GHz
Memory: 15,5 GiB
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