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Branch merges

Branch information

Name:: db-devel

Repository:: lp:~tipui/launchpad

Recent commits

e80682e... by Patch Queue Manager <email address hidden> on 2021-01-09

Automatic merge from stable up to 448ac4bd2f28

448ac4b... by Colin Watson on 2021-01-09

publish-distro: Reset Storm store between each archive

Merged from https://code.launchpad.net/~cjwatson/launchpad/+git/launchpad/+merge/396031

25c0fd7... by Colin Watson on 2021-01-09

publish-distro: Reset Storm store between each archive

When publishing large archives, a large number of alive objects can be
accumulated in the Storm store, which means that each commit can take a
long time as it has to iterate over every alive object to invalidate it.
This has been particularly noticeable on production since raising the
Storm cache size for LPCONFIG=ppa-publish to 500000 from the default
value of 10000, which has fixed preloading at the expense of slowing
down commits: after publishing some large archives, each commit can take
on the order of ten seconds, and since there are typically four commits
per dirty PPA this can add up very quickly.

To avoid this, reset the store between archives in roughly the same way
we do between web requests. This means we have to go to some more work
in tests to reload objects from the database.

LP: #1910422

c30f15d... by Patch Queue Manager <email address hidden> on 2021-01-08