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feat: Read course indexes from MySQL, not MongoDB (#29184)

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Description
This is a follow up to #29058 and #29413. This is the next step in moving part of the modulestore data (the course indexes / "active versions" table) from MongoDB to MySQL.

There are four steps planned in moving course index data to MySQL:

Step 1: create the tables in MySQL, start writing to MySQL + MongoDB ✅ done
Step 2: migrate all remaining courses to MySQL ✅ done
Step 3: switch reads from MongoDB to MySQL (this PR)
Step 4 (much later, once we know this is working well): stop writing to MongoDB altogether.
Supporting information
OpenCraft Jira ticket: MNG-2557

Status
✅ Tested with a large Open edX instance is in progress.

Testing instructions
Try making changes in Studio and verify that they work fine.

Deadline
None
This commit is contained in:
Braden MacDonald
2022-03-09 07:21:09 -08:00
committed by GitHub
parent 835285d494
commit dcb7ef8821
34 changed files with 145 additions and 169 deletions
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2
lms/djangoapps/course_api/blocks/transformers/tests/test_milestones.py
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@@ -177,7 +177,7 @@ class MilestonesTransformerTestCase(CourseStructureTestCase, MilestonesTestCaseM
self.user,
)
with self.assertNumQueries(6):
with self.assertNumQueries(7):
self.get_blocks_and_check_against_expected(self.user, self.ALL_BLOCKS_EXCEPT_SPECIAL)
def test_staff_access(self):