Fwd: db and rpm db

[Jeff Johnson]

Begin forwarded message:

>
> On Aug 23, 2007, at 7:19 AM, Patryk Zawadzki wrote:
>
>> On 8/23/07, Jakub Bogusz <qboosh at pld-linux.org> wrote:
>>> On Thu, Aug 23, 2007 at 11:55:05AM +0200, Adam Gołębiowski wrote:
>>>> rpm --rebuilddb seems to fix this issue (I didn't try removing  
>>>> __db*).
>>> The same for me, rm __db* was sufficient.
>>
>> Is it possible to remove it by a trigger? Triggers are run in the
>> middle of transaction and removing transaction state might have
>> unpredictable results. Maybe we need a macro that tells rpm to clean
>> after itself when upgrading:
>>
>
> Handling an error from an open db cache while changing the db  
> implementation
> should not be done in db %post. For starters, you will find the  
> dbenv always in use
> by rpm --upgrade.
>
> A trigger on db change could be added to the rpm package, but triggers
> are run in the middle of a transaction, with an open/live db cache,  
> and that
> may cause a similar problem.
>
> Does poldek have a dbenv open between invocations of rpm --upgrade?
> Closing and reopening the rpmdb in poldek will be needed as well if  
> you
> wish to invalidate the old cache in a dbenv while upgrading db.
>
> All that is known atm is that a "rm -f /var/lib/rpm/__db* on a  
> likely quiescent
> dbenv "fixes" the symptoms.
>
> 73 de Jeff