Description of problem:
Index content is creating duplicated errata in "katello_erratum" table after upgrading to Satellite 6.10. This is because the existing errata has pulp2 id in pulp_id column. The newly created errata will have the errata_id in the pulp_id column. Katello considers them as different errata.

It appears that Satellite doesn't switch the entries in katello_erratum during the content switchover. Is this the expected behaviour? If not, should we remove them and how can we safely remove the old errata (with pulp2 id) which are still associated to the old versions of content view repositories?


foreman-rake console
> pp Katello::Erratum.where(errata_id: "RHBA-2019:1293").first.pulp_id
"78f852c6-44bc-411c-9d43-615b1ea6ccfe"  <==== pulp2 id
> pp Katello::Erratum.where(errata_id: "RHBA-2019:1293").second.pulp_id
"RHBA-2019:1293  <=== errata_id
exit


# select errata_id, count(errata_id) count from katello_errata group by errata_id order by count desc;
   errata_id    | count 
----------------+-------
 RHEA-2021:1949 |     2
 RHEA-2018:0867 |     2
 RHSA-2021:0289 |     2
 RHBA-2020:5049 |     2
 RHBA-2018:3024 |     2
 RHBA-2019:2025 |     2
 RHSA-2015:1666 |     2
 RHBA-2020:4452 |     2
 RHSA-2021:0989 |     2
 RHBA-2021:0243 |     2
<snip>


The duplicated errata have 0 module streams which break the content view filtering. If you have a filter to "include/exclude all module streams without errata" then unexpected module streams and errata will be included/excluded.


> pp Katello::Erratum.where(errata_id: "RHBA-2019:1293").first.module_streams.size
1  <====
> pp Katello::Erratum.where(errata_id: "RHBA-2019:1293").second.module_streams.size
0  <====


The empty module streams for the duplicated/second erratum can be fixed by applying the following change:

--- a/app/services/katello/pulp3/erratum.rb     2021-12-18 03:12:39.000000000 +1000
+++ b/app/services/katello/pulp3/erratum.rb     2022-02-18 12:06:05.668000000 +1000
@@ -102,7 +102,7 @@
             module_stream_id_column = "#{ModuleStreamErratumPackage.table_name}.module_stream_id"
             existing = ErratumPackage.joins(:module_streams).
                                       where(module_stream_id_column => module_stream.id,
-                                            :nvrea => nvreas).pluck(:nvrea)
+                                            :nvrea => nvreas, :erratum_id => model.id).pluck(:nvrea)

             (nvreas - existing).each do |nvrea|
               package = model.packages.find_by(:nvrea => nvrea)



Katello upstream seems to have included this fix already after refactoring the content indexing codes.

https://github.com/Katello/katello/blob/master/app/services/katello/pulp3/erratum.rb#L106



Steps to Reproduce:
1. Upgrade Satellite from 6.9 to 6.10
2. After upgrading the Satellite, trigger complete sync against one or more repositories (particularly those with module streams) and wait until they are finished.

Actual results:
Duplicated errata created in katello_erratum table. Duplicated modular errata have 0 module streams.

Expected results:
No duplicate errata