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Created attachment 1209620 [details]
Task content host destroy

Description of problem:
Bulk deleting content hosts can trigger a deadlock in postgres.
See attached task export that it deadlocks on the import_data to update the katello_pools.


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Register 100 Content Hosts
2. Bulk Delete 100 Content Hosts
3.

Actual results:
Deadlock

Expected results:
Success

Additional info:
In the latest upstream the https://github.com/Katello/katello/pull/6187 removes already the finalize() code block that does the import_data() call.

Peter, thank you for filing the bugzilla.

Justin, will the PR that Peter has referenced resolve the deadlock observed?

Indeed it does.  We likely could backport *just* the piece that would fix it if we want to pull this into 6.2.z

http://projects.theforeman.org/issues/12556

This is not just bulk deleting also with re-registering hosts the deadlock is triggered.

E.g. re-register (susbcription-manager register --force) on 10 hosts at the same time.

Please add verifications steps for this bug to help QE verify

*** This bug has been marked as a duplicate of bug 1419985 ***

closed as a duplicate as https://bugzilla.redhat.com/show_bug.cgi?id=1419985 already has the single fix we need and not the GIANT upstream change that happened to include it.