[stable25] optimize background image migration job #35326
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- separate in two stages: to prepare, and to actually migrate - in step one, prepare a list of users to be migrated, and store it compressed as app config - gzcompress can be used, because we already require zlib - upon the next calls (step two), slice off the first 5000 users and migrate them. Re-add job if necessary to repeat. - downside is that an app config value will in the beginning use the RAM with any request, until it thins out. Examples: 2m UUIDs (75 MiB) result in ~40 MiB compressed data, while 0.2Mib for 10 000 UUIDs, 0.4MiB for 20 000 and 4.1 MiB for 200 000. Acceptable. Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
- and use count over isset for better understanding Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
Co-authored-by: Pytal <24800714+Pytal@users.noreply.github.com> Signed-off-by: blizzz <blizzz@arthur-schiwon.de>
Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
PVince81
requested review from
CarlSchwan,
artonge,
blizzz,
skjnldsv and
szaimen
1 task
blizzz
approved these changes
Nov 22, 2022
blizzz
added
4. to release
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Backport of #34677 to stable25