godzie44 authored 6 months ago and Georgy Moshkin committed 6 months ago

Closes #664

Georgy Moshkin authored 6 months ago and Yaroslav Dynnikov committed 6 months ago

Strictness!

Move vshard related fields from _pico_property to _pico_tier
and adapt it in governor algorithm

This reverts commit d7e93cfc.

There's still some raft operations which we can't switch to
compare_and_swap yet unfortunately.

Closes #875

Nobody cares about the lsn

I'm not sure but I think it was added before we switched to counting
vshard config versions. Basically it was fixing the same A-B-A problem
but only in a single case.

Just goes to show how you shouldn't apply hacky fixes to problems you
don't fully understand.

BTW nobody is ever reading this message, the commit only removes the
code so nobody will ever bump into it going over git blame...

- Simplify code
- Check plugin exists on client side

- Move all preconditions checking to the client
- Return errors if preconditions fail instead of silently ignoring them