[Koha-devel] Merging authority records can corrupt data

[Thomas Klausner]

Hi!

It seems that merging authorities with lots of linked biblios can lead 
to data corruption (at least in 21.05):

The merging of the auth record itself seems to work, but the linking of 
the biblios from old to new auth record happens inside a normal 
synchrone web request. If this requests times out (because there might 
be a lot of biblio records to relink), some of the biblios still point 
to the old auth, which is already deleted. (At least this seems to be 
happening, based on the complaints we got from librarians)

I guess the only fix is to handle authority merging via background jobs 
/ job queue.

Is this a known bug? I couldn't find anything about that in bugzilla?
If yes, is there a timeframe when it will be fixed?
If no, I will create a bug (though reproducing it will need some weird 
fixtures in the DB..).

In any case, the Steiermärkische Landesbibliothek is keen to get this 
working, so I could give fixing it a try. But this will need some 
discussion, I assume? As I suppose this will be a bit more work than a 
single-line fix in a template, I'd like to have some backing by other 
Koha-devs, that this behaviour is indeed a bug, and that using 
background jobs is the correct way to fix it.

Greetings,
domm

-- 
#!/usr/bin/perl                             https://domm.plix.at
for(ref bless{},just'another'perl'hacker){s-:+-$"-g&&print$_.$/}