Bug 1820579

Summary:	RFE: Handle database conversion automatically
Product:	[Fedora] Fedora	Reporter:	Panu Matilainen <pmatilai>
Component:	rpm	Assignee:	Packaging Maintenance Team <packaging-team-maint>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	igor.raits, mjw, packaging-team-maint, pmatilai, pmoravco, vmukhame
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Last Closed:	2020-05-07 06:45:48 UTC	Type:	Bug
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Bug Blocks:	1818910

Description Panu Matilainen 2020-04-03 11:45:27 UTC

Acceptance of https://fedoraproject.org/wiki/Changes/Sqlite_Rpmdb essentially required that the database is converted automatically in the process. We need to handle that somehow, this bug is to track that specific goal.

Comment 1 Panu Matilainen 2020-05-07 06:45:48 UTC

Database conversions are handled by the following scheme:

There's a new rpmdb-rebuild systemd service, which can be flagged to run on next reboot by creating '.rebuilddb' flag file in the rpm database directory, ie 'touch /var/lib/rpm/.rebuilddb'. This is not conversion or backend specific in any way, so it can be used to flag the database for maintenance rebuild (think VACUUM, regardless of the backend) at a time where there are no external users.

During updates of rpm package, if BDB rpm database is detected (/var/lib/rpm/Packages), it's flagged for rebuild on the next reboot regardless of configured backend. This serves two purposes: convert away from BDB to the configured database, or if configured to stay on BDB for now, give it a much needed maintenance rebuild (ensure index sanity, restore performance etc) from time to time.

Established in rawhide as of rpm >= 4.15.90-0.git14971.11