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feat: incremental reindex_studio management command [FC-0062] #35864

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DanielVZ96
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Description

Adds an incremental mode to the reindex studio management command, and also other few utilities for managing the index: reset and init.

Supporting information

Testing instructions

First open the home page of any library. eg.: http://apps.local.openedx.io:2001/course-authoring/library/lib:test:2test

  1. Using tutor, exec into the cms instance: tutor dev exec cms bash
  2. Verify that the command requires the experimental flag: ./manage.py cms reindex_studio should do nothing, and only reindex if you pass the --experimental flag
  3. Test out the different flags for the command
    • ./manage.py cms reindex_studio --experimental --init: Should do nothing since the index already exist
    • ./manage.py cms reindex_studio --experimental --reset: Should recreate an empty index. This means that searching in studio page should not return any results.
    • Run and interrupt ./manage.py cms reindex_studio --experimental --incremental right after it finishes indexing collections. Run it again and assert it continues from where it was interrupted. Try searching content now.
    • Run ./manage.py cms reindex_studio --experimental and verify the index is recreated by searching blocks after it finishes. And also assert that there are no records of a current incremental update lingering: ./manage.py cms shell -c 'from openedx.core.djangoapps.content.search.models import IncrementalIndexCompleted; print(IncrementalIndexCompleted.objects.all())'

Deadline

Asap

Other information

Private-Ref: https://tasks.opencraft.com/browse/FAL-3902

@openedx-webhooks openedx-webhooks added the open-source-contribution PR author is not from Axim or 2U label Nov 15, 2024
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Thanks for the pull request, @DanielVZ96!

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@DanielVZ96 DanielVZ96 force-pushed the dvz/refactor-reindex-studio branch 2 times, most recently from 5ffe2d5 to bd37e4c Compare November 15, 2024 13:22
assert IncrementalIndexCompleted.objects.all().count() == 1
api.rebuild_index(incremental=True)
assert IncrementalIndexCompleted.objects.all().count() == 0
assert mock_meilisearch.return_value.index.return_value.add_documents.call_count == 7
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@DanielVZ96 could you add a comment here? It is not easy at first glance to realize why this call_count is 7

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I modified the mocking mechanism to make it easier to understand and also added some comments.

status_cb = log.info

status_cb("Creating new empty index...")
with _using_temp_index(status_cb) as temp_index_name:
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@DanielVZ96 @bradenmacdonald @pomegranited I am concerned about the functionality of this reset.

If we need to create and populate a new index on a large instance, we need to run the --reset, which removes the old index, and then I need to run the --incremental. However, the search results will be broken when the new index is populated.

Wouldn't it be better to add an option to --incremental, so that it creates a temporary index and does swap, so as not to break the search results, as the non-incremental form does?

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@ChrisChV I'm assuming that most times an administrator is running this incremental build, they either have no existing index or their existing index is from an old version and is missing some configuration/columns/etc. (so it actually is broken). In that case, removing the old index and starting an incremental build will result in incomplete search results for a while, but the search will be working without errors. And, the incremental index rebuilds the newest courses first, so the results should fill in relatively quickly.

I think for large instances, (where the reindex can take several days) it's better to have a working search with incomplete results, than to have a totally broken search (that displays errors because the old index does not exist or has the wrong configuration).

For Teak I would like to find a way to simplify this, maybe by only having the incremental option and allowing it to be either using a temporary index or not. But I think we'll need to see how this works first and hear from people testing it out.

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OK that's fine for me 👍

@DanielVZ96 DanielVZ96 force-pushed the dvz/refactor-reindex-studio branch from 24da2c3 to 776b1d1 Compare November 16, 2024 04:37
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@DanielVZ96 Looks good 👍 Some nits:

  • I tested this: I followed the testing instructions
  • I read through the code and considered the security, stability and performance implications of the changes.
  • Includes tests for bugfixes and/or features added.
  • Includes documentation

When running ./manage.py cms reindex_studio --experimental --init with the existing index, the message is lost in the logs, is it possible to set the output message to have a different color, yellow or red?

Captura desde 2024-11-18 11-40-22

@DanielVZ96
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@DanielVZ96 Looks good 👍 Some nits:

  • I tested this: I followed the testing instructions
  • I read through the code and considered the security, stability and performance implications of the changes.
  • Includes tests for bugfixes and/or features added.
  • Includes documentation

When running ./manage.py cms reindex_studio --experimental --init with the existing index, the message is lost in the logs, is it possible to set the output message to have a different color, yellow or red?

Captura desde 2024-11-18 11-40-22

Nice nit. I'll send it to stderr then

image

@@ -473,10 +535,16 @@ def add_with_children(block):
status_cb(
f"{num_contexts_done + 1}/{num_contexts}. Now indexing course {course.display_name} ({course.id})"
)
if course.id in keys_indexed:
num_contexts_done += 1
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Skipped courses are still included in the total count and in the num_contexts_done. I like that. I think we should do the same for skipped (already-indexed) libraries. Currently, they're excluded altogether and won't be include din the num_contexts_done count.

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@DanielVZ96 Very nice work here! I have a couple requests but I'm very happy with how this is looking.

@DanielVZ96 DanielVZ96 force-pushed the dvz/refactor-reindex-studio branch from 0bf5368 to 73957b6 Compare November 28, 2024 04:35
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Nice, thanks! I like that approach you took. Just a few more tweaks I'm suggesting.

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@DanielVZ96 DanielVZ96 force-pushed the dvz/refactor-reindex-studio branch from bbcf4d5 to c41c44d Compare December 5, 2024 22:01
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@bradenmacdonald this is ready for a re-review!

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Thanks for those changes! I tested the various modes (normal, init, and incremental) and it seems to be working well!

I'll wait to see if @ormsbee wants to comment before we merge, but can you please open the backport PR in the meantime? I think this version is ready to go.

@DanielVZ96
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@bradenmacdonald here's the backport: #35981

@bradenmacdonald bradenmacdonald changed the title feat: incremental reindex_studio management command feat: incremental reindex_studio management command [FC-0062] Dec 6, 2024
@bradenmacdonald bradenmacdonald merged commit b07464b into openedx:master Dec 6, 2024
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@bradenmacdonald bradenmacdonald deleted the dvz/refactor-reindex-studio branch December 6, 2024 20:30
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2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

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2U Release Notice: This PR has been deployed to the edX production environment.

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2U Release Notice: This PR has been deployed to the edX production environment.

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5 participants