Dependency solver takes an extremely long time to be loaded with content

[fao89]

Author: @dralley (dalley)

Redmine Issue: 9331, https://pulp.plan.io/issues/9331

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[synkd]

I recently encountered a very long publish time of a Satellite content view with dependency resolution turned on. Here are some notes about what I observed when this occurred:

• The publish completed successfully in 17 hours.
• Almost all of the time was spent in the Actions::Pulp3::Repository::MultiCopyContent subtask.
• This was the first version of the content view published.
• The content view contains one repository, rhel-8-for-x86_64-appstream-rpms.
• The content view has a module stream content filter. All 453 module streams in the repo are included by the filter.
• The Satellite server has 6 CPU cores and 20GB RAM.
• The Satellite was not performing other resource-intensive tasks during the publish job.

Please let me know if I can provide additional information that might be helpful in investigating this issue.

[pulpbot]

https://bugzilla.redhat.com/show_bug.cgi?id=1771780