Changes/Unified database for DNF

Unified database for DNF

Summary

Replacing obsoleted YUM/DNF databases (yumdb, historydb, groups.json) with new unified sqlite database adapted to the current needs of DNF.

Owner

• Name: Eduard Čuba, Igor Gnatenko
• Email: ecuba@redhat.com, ignatenkobrain@fedoraproject.org
• Release notes owner:

Current status

• Targeted release: Fedora 27
• Last updated: 2017-07-05
• Tracker bug: <will be assigned by the Wrangler>

Scope

• Proposal owners: Port DNF to SWDB (patches has been already sent), Port PackageKit to SWDB

• Other developers: PackageKit developers should review proposed changes in libdnf for logging PackageKit transactions into SWDB instead of yumdb. In addition PackageKit developers should consider using SWDB for reading transaction data instead of using its own backend.

• Release engineering: #Releng issue number (a check of an impact with Release Engineering is needed)

• Policies and guidelines: N/A (not a System Wide Change)

• Trademark approval: N/A (not needed for this Change)

Upgrade/compatibility impact

Increase of history related DNF commands performance.

Dependencies

Changing DNF databases in the background should not affect other packages.

Contingency Plan

• Contingency mechanism: Write tool to convert to old db format and revert change
• Contingency deadline: Beta Freeze
• Blocks release? Yes (not sure)
• Blocks product? -

Documentation

Not written yet.