F13-Question: Cannot start a new yum immediately after an old "yum update" ends
Adam Williamson
awilliam at redhat.com
Tue Apr 6 18:41:33 UTC 2010
On Tue, 2010-04-06 at 14:14 -0400, Seth Vidal wrote:
>
> On Tue, 6 Apr 2010, Adam Williamson wrote:
>
> > Since checking for updates is a read-only operation, does it actually
> > need to lock other operations out of the database? The worst I can think
> > could happen is the resulting information on available updates could be
> > slightly inaccurate, but if it's made a non-blocking operation it could
> > be done more frequently probably without anyone noticing, so even if it
> > winds up being slightly off for a bit, it would fairly quickly be fixed.
>
>
> checking for updates isn't read-only. It's downloading new metadata. Now,
> for the user-run - it's fine - but for root-run - it needs to lock.
However, we already established that the problem case is when it runs
right after you've done a yum operation, in which case the metadata has
already just been refreshed, and it should be using the already-cached
metadata. In that case, does it need to lock?
--
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Fedora Talk: adamwill AT fedoraproject DOT org
http://www.happyassassin.net
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