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[#12048] Data migration for feedback session entities #12986

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merged 6 commits into from
Apr 7, 2024
Merged

[#12048] Data migration for feedback session entities #12986

merged 6 commits into from
Apr 7, 2024

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yuanxi1
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@yuanxi1 yuanxi1 commented Apr 6, 2024 •
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Part of #12048

Outline of Solution

  • Added migration and verification script for feedback session.
  • Added function to seed feedback sessions in SeedDb.java

Edit:

  • Migration script initially took very long due to the need to fetch the course reference and set it in the new feedback session entity.

  • Added a function getReference(entity class, id) in Hibernate.util to use EntityManager.getReference and use this instead of the normal get. Increased performance from nearly 1 hr to 1 minute for 30K entities.

  • Stats (tested on Google cloud):

No of entities tested Seed time Migration time Verification time Verify counts time (course + fb session)
30000 aprox 1hr in total 1m 12s (Without @Fetch annotation) 31.558s (With@Fetch annotation) TBD, > 30min 13s

NicolasCwy
NicolasCwy requested changes Apr 6, 2024
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Nice work on this! I've highlighted 2 parts which could be causing verification to be slow

I think in this PR you can uncomment the seed (unless there's a reason) and also optimise your seed script

src/client/java/teammates/client/scripts/sql/DataMigrationForFeedbackSessionSql.java
protected void migrateEntity(FeedbackSession oldEntity) throws Exception {
HibernateUtil.beginTransaction();
Course course = HibernateUtil.get(teammates.storage.sqlentity.Course.class, oldEntity.getCourseId());
HibernateUtil.commitTransaction();
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This transaction is probably causing the migration to be slow, we probably can optimise this by joining courses with its feedback sessions

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Changed it to use EntityManager.getReference.

src/client/java/teammates/client/scripts/sql/SeedDb.java Outdated Show resolved Hide resolved
src/client/java/teammates/client/scripts/sql/VerifyFeedbackSessionAttributes.java Show resolved Hide resolved
src/client/java/teammates/client/scripts/sql/VerifyFeedbackSessionAttributes.java Show resolved Hide resolved
@NicolasCwy
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NicolasCwy commented Apr 6, 2024 •
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@yuanxi1 Just realised you are also missing verifying entity counts could you make something similar to VerifyNonCourseEntityCounts with course counts too! Realised we missed it out in the course entity migration PR #12980

NicolasCwy
NicolasCwy approved these changes Apr 6, 2024
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LGTM! Nice work optimising migration using FK

@NicolasCwy NicolasCwy added s.FinalReview The PR is ready for final review c.Task Other non-user-facing works, e.g. refactoring, adding tests labels Apr 6, 2024
@NicolasCwy NicolasCwy mentioned this pull request Apr 6, 2024
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@NicolasCwy NicolasCwy changed the title [#12048] Data migration for feedback session [#12048] Data migration for feedback session entities Apr 7, 2024
mingyuanc
mingyuanc reviewed Apr 7, 2024
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Other than that, lgtm

src/client/java/teammates/client/scripts/sql/SeedDb.java
getRandomInstant(),
rand.nextInt(3) > 1 ? null : getRandomInstant(), // set deletedAt randomly at 25% chance
false);
ofy().save().entities(course).now();
} catch (Exception e) {
log(e.toString());
}

seedFeedbackSession(courseId);
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Likewise, should this be in the try block? so that if there is an exception then you wont seed the feedback session

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@NicolasCwy NicolasCwy Apr 7, 2024 •
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In this case I think each seed function should not be catching the error within their own function but throwing to be caught here, let's make a note of this and fix it in another PR to unblock everyone else

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Thanks for catching this, i'll change in feedback question pr then.

@NicolasCwy NicolasCwy merged commit bb58c58 into TEAMMATES:v9-course-migration Apr 7, 2024
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@NicolasCwy NicolasCwy mentioned this pull request Apr 7, 2024
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@NicolasCwy NicolasCwy added s.ToMerge The PR is approved by all reviewers including final reviewer; ready for merging and removed s.FinalReview The PR is ready for final review labels Apr 8, 2024
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@mingyuanc mingyuanc mingyuanc left review comments

@NicolasCwy NicolasCwy NicolasCwy approved these changes

@FergusMok FergusMok FergusMok left review comments

@marquestye marquestye Awaiting requested review from marquestye

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