[openstack-dev] [gnocchi] per-sack vs per-metric locking tradeoffs

Julien Danjou julien at danjou.info
Fri Apr 28 13:23:30 UTC 2017


On Fri, Apr 28 2017, gordon chung wrote:

> what if we just don't lock ever on delete, but if we still check lock to 
> see if it's processed. at that point, the janitor knows that metric(s) 
> is deleted, and since no one else is working on sack, any metricd that 
> follows will also know that the metric(s) are deleted and therefore, 
> won't work on it.

I did not understand your whole idea, can you detail a bit more?
Though the "check lock" approach usually does not work and is a source
of race condition, but again, I did not get the whole picture. :)

-- 
Julien Danjou
-- Free Software hacker
-- https://julien.danjou.info
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