Koschei 1.4 release notes

New features:

• Improved performance and scalability of build and repository resolution
  • Parallel downloading and loading of yum repositories
  • Improved caching of repository files
  • Also caching in-memory representation of loaded repository files (hawkey sacks)
  • Parallel querying of buildrequires from Koji
  • Persisting resolution results in multiple chunks to handle more packages
• Ignoring builds that failed due to failure in Koji and not the package build itself
  • No more bothering packagers with build failures that are in fact just faulty hardware/network
• Support for more Koji authentication methods
• Secondary Koji mode
  • In this mode, Koschei can use two different Koji instances for different purposes:
    • primary
      • it is used for performing scratch builds
      • expected to be dedicated Koji instance just for Koschei
    • secondary
      • the "public" Koji instance used by real people
      • it is treated as read-only and Koschei doesn't need to authenticate against it
      • is used for obtaining SRPMs, repository files, SRPM requires and information about builds done by packagers
  • Note: Fedora production instance wil stay in primary Koji mode - using only one Koji instance. This feature is meant for other secondary deployments, where building on the Koji instance being targeted is not feasible
• Package can now be added to / removed from groups in package detail view
  • Using checkboxes to tick the appropriate groups
• Support for ignoring weak dependencies (not used in production as it's not used by Koji yet)

Improvements and bugfixes:

• Fixed dealing with canceled builds
• Fixed adding new maintainers to groups
• User can now remove himself from group maintainers
• Improved exception handling in communication with Koji and pkgdb
• Using systemd watchdog for fedmsg-watcher process
• In package list, display task id of last build, not last complete build
• Fixed broken links to packages with plus character in name
• Fixed resolving virtual provides in base build group
• Avoiding database level deadlocks in bulk processing tasks
• Fixed displaying of administrator notices
• More indices to improve performance
• Considering both mandatory and default package type in build group
• Allow resolving buildrequires with file-like provides
• Avoid querying Koji when generating bugreports
• Increase priority of packages whose last build failed to resolve
• Display message when pkgdb fetch fails
• More tests

Known bugs:

• Repository caching thread can deadlock. Under investigation
• Increased memory usage over time suggesting leaking memory