https://bugs.kde.org/show_bug.cgi?id=468337
Bug ID: 468337
Summary: Baloo ignores corrupted DB
Classification: Frameworks and Libraries
Product: frameworks-baloo
Version: 5.104.0
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Engine
Assignee: baloo-bugs-n...@kde.org
Reporter: m...@eliasprobst.eu
Target Milestone: ---
SUMMARY
For reasons unknown, my Baloo DB got corrupted - but I had no clue until I
wondered why I got no results from Baloo and started to investigate using
Baloo's CLI tools.
At no point did Baloo's KCM or any of the Plasma tooling let me know, that
Baloo might have a problem with its DB.
STEPS TO REPRODUCE
1. Corrupt your DB (procedure unknown)
2. Index a file
3. Execute a query which should return the file
OBSERVED RESULT
- Baloo acts on the surface, as if nothing happened
- Baloo only hints at a problem, when manually executing "balooctl index
$PathToFile"
The following steps demonstrate the problem:
- Create a testfile:
```
echo "This is my testfile. Unique term is: joo0theg8Vai2agh8wah" >
~/Documents/my-testfile.txt
```
- Query Baloo for the unique term in it (no results returned):
```
baloosearch joo0theg8Vai2agh8wah
Elapsed: 1.47841 msecs
```
- Ask Baloo explicitly to index the file (it sends mixed signals - on the one
hand it claims to have indexed the file, on the other hand a huge number of
errors):
```
balooctl index ~/Documents/my-testfile.txt
kf.baloo.engine: IdTreeDB::put MDB_CORRUPTED: Located page was wrong type
kf.baloo.engine: IdFilenameDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: IdTreeDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: IdFilenameDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: IdTreeDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: IdFilenameDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: IdTreeDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: IdFilenameDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: DocumentDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: DocumentDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: DocumentTimeDB::put 25335805920738816 MDB_BAD_TXN:
Transaction must abort, has a child, or is invalid
kf.baloo.engine: MTimeDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: DocumentDataDB::put MDB_BAD_TXN: Transaction must abort, has
a child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PostingDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: PositionDB::put MDB_BAD_TXN: Transaction must abort, has a
child, or is invalid
kf.baloo.engine: Transaction::commit MDB_BAD_TXN: Transaction must abort, has
a child, or is invalid
Indexing /home/eliasp/Documents/my-testfile.txt
File(s) indexed
```
- Query Baloo again (still no results):
```
baloosearch joo0theg8Vai2agh8wah
Elapsed: 0.185144 msecs
```
EXPECTED RESULT
- Perfect: don't corrupt the DB in the first place
- Nice: fix/remove corrupted data in the DB automatically
- OK: let the user know (preferrably via the KCM _and_ a Plasma notification)
the DB got corrupted and ask, whether to remove/recreate it
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: NixOS/nixpkgs unstable 19cf008bb1
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8
LMDB 0.9.30
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