[Yum] exception handling regarding yum plugins

seth vidal skvidal at fedoraproject.org
Sat Aug 7 17:26:22 UTC 2010

On Sat, 2010-08-07 at 18:55 +0200, Hannes Frederic Sowa wrote:
> Hi!
> I wondered why exceptions from plugins are currently not handled
> more gracefully. While developing a plugin for yum I had some
> exceptions thrown from my plugin. This led to some inconsistency
> in my yumdb-history.sqlite:
> tid|name|epoch|version|release|arch|pkgtupid|state|done|nevra
> 52|VirtualBox-3.2|0|3.2.6_63112_fedora13|1|x86_64|2439|Updated|FALSE|VirtualBox-3.2-0:3.2.6_63112_fedora13-1.x86_64
> 62|VirtualBox-3.2|0|3.2.6_63112_fedora13|1|x86_64|2439|Updated|FALSE|VirtualBox-3.2-0:3.2.6_63112_fedora13-1.x86_64
> Especially the transaction data from /var/lib/yum/yumdb is missing.
> Otherwise, if plugins should disrupt yum, how should I deal with that
> inconsistencies? Is there a tool to synchronize rpmdb and yumdb and
> spits out a warning if packages are missing?
> (I'm currently working on a yum-auditing tool to gather the data of
> package-changes in a central database.)

That's cool. there are now history plugin hooks that might help you -
they're in yum 3.2.28.

also - ultimately if something aborts the whole process then yum plugins
can kill things off.



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