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
The tags: ioslave does not set a local url in the KFileItem. This works correctly for both timeline: and baloosearch:
Git commit 4361af3042342fd989653e15dbd363def3c3b3be by Stefan Brüns. Committed on 31/08/2020 at 22:42. Pushed by bruns into branch 'cleanup_uds'. Use common UDS creation code also for tags This gets rid of the KIO::StatJob and makes the UDS entry more complete. Most importantly, it sets a local URL so thumbnails no longer require a temporary copy. M +14 -20 src/kioslaves/tags/kio_tags.cpp https://invent.kde.org/frameworks/baloo/commit/4361af3042342fd989653e15dbd363def3c3b3be
Git commit 2e41b5a263e57aa4dc4868e9ce44a790384bd349 by Stefan Brüns. Committed on 05/09/2020 at 14:28. Pushed by bruns into branch 'master'. Use common UDS creation code also for tags This gets rid of the KIO::StatJob and makes the UDS entry more complete. Most importantly, it sets a local URL so thumbnails no longer require a temporary copy. M +14 -20 src/kioslaves/tags/kio_tags.cpp https://invent.kde.org/frameworks/baloo/commit/2e41b5a263e57aa4dc4868e9ce44a790384bd349