I have hopefully upgraded for the last time from 4.2 to 4.3.0 yesterday. Set all debian repositories (buster, bullseye and the puppet deb repo) to download policy immediate.
I have noticed that the bullseye main repo sync now takes substantially longer: more than 5 hours compared to approx. 20 minutes before the upgrade.
Buster main went from approx. 13 minutes to more than 40 minutes.
The security and updates repos also take much longer, but as it is only from less than 5 seconds to still under a minute it’s not so bad.
I have synced all repositories twice already and both times it took so long.
During the 5 hours bullseye main sync I have noticed that one postgres process was close to 100% all the time. During that time, task status slowing incremented the associated content.
--- pulp_tasks: - pulp_href: "/pulp/api/v3/tasks/0b173f48-45ab-44f1-854e-b7281c19fb7a/" pulp_created: '2022-03-29T23:34:49.840+00:00' state: completed name: pulp_deb.app.tasks.synchronizing.synchronize logging_cid: 44c8674f-a256-4294-9071-50e1a1915636 started_at: '2022-03-29T23:34:50.028+00:00' finished_at: '2022-03-30T04:42:51.392+00:00' worker: "/pulp/api/v3/workers/17c2d73f-34b6-4930-9cd1-265d5b7e1b92/" child_tasks:  progress_reports: - message: Update ReleaseFile units code: update.release_file state: completed done: 1 - message: Update PackageIndex units code: update.packageindex state: completed done: 2 - message: Downloading Artifacts code: sync.downloading.artifacts state: completed done: 3 - message: Associating Content code: associating.content state: completed done: 57352 - message: Un-Associating Content code: unassociating.content state: completed done: 0 created_resources:  reserved_resources_record: - "/pulp/api/v3/repositories/deb/apt/5cf43358-9694-4dc5-a602-be660c479856/" - shared:/pulp/api/v3/remotes/deb/apt/f541a1f2-6a32-418f-835e-165596a4f150/ create_version: true task_groups:  poll_attempts: total: 1160 failed: 0
Foreman 3.1.2, Katello 4.3.0 (upgraded yesterday from 4.2.0) running on CentOS 7.9.