man-db triggers slows down crossgrade, perhaps disable for most of it?

[chrissamuel]

Hi there,

Whilst watching my i386 to amd64 crossgrade I noticed a fair bit of time spent with:

Processing triggers for man-db:i386 (2.9.4-2) ...

Turns out this is controlled by the presence of the file /var/lib/man-db/auto-update and so it might be possible to speed up the crossgrade by checking if that file is present and, if so, moving it out of the way and remembering to recreate it towards the end (or should the process abort) so it does get run at least once prior to the end of the crossgrade.

What do you think?

All the best,
Chris

[chrissamuel]

Meant to say - with that file missing you instead see:

Processing triggers for man-db (2.9.4-2) ...
Not building database; man-db/auto-update is not 'true'.

and it then carries on pretty quickly.

[chrissamuel]

I suspect when man-db gets crossgraded to amd64 that file comes back, so I had to move it out of the way again (hence why in the previous comment the amd64 version showed itself).