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[TECH] Migrer la colonne answers.id de INTEGER en BIG INTEGER avec downtime. #3839

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octo-topi
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@octo-topi octo-topi commented Dec 15, 2021

🎄 Problème

Le type Integer de l’identifiant de la table answer est limité à 2 147 483 647.
Au 15 mai 2022, 849 079 160 enregistrements sont présents.
Il reste 1 298 404 487 enregistrements libres.

Le maximum d'enregistrements insérés par jour du 1er au 15 mai est 3 009 644.
A ce rythme, il reste approximativement 431 jours pour atteindre cette limite.

🎁 Solution

La valeur maximale du type BigInt est 9 223 372 036 854 775 807.
Migrer le type de l'identifiant vers ce type.

🌟 Remarques

Les temps de traitement constatés sur une infratstructure comparable sont:

  • avec Postgresql 12: 16h;
  • avec Postgresql 13: 15h.

🎅 Pour tester

Environnement de test

Ajouter le repo Scalingo en tant que remote

git remote add bigint-test-scalingo git@ssh.osc-secnum-fr1.scalingo.com:pix-int-to-bigint-test.git 

Pusher la branche sur le repo scalingo

git push --force bigint-test-scalingo tech-migrate-answers-id-bigint-with-downtime:master

Lancer le script

scalingo --region osc-secnum-fr1 --app pix-int-to-bigint-test run --detached node ./scripts/bigint/change-answers-id-type-to-bigint-with-downtime.js

Suivre sa progression

scalingo --region osc-secnum-fr1 --app pix-int-to-bigint-test ps
scalingo --region osc-secnum-fr1 --app pix-int-to-bigint-test logs --follow --filter one-off-9441
scalingo --region osc-secnum-fr1 --app pix-int-to-bigint-test logs --filter one-off-9441 --lines 100000 | grep -v "alive" | sort

@octo-topi octo-topi added Development in progress cross-team Toutes les équipes de dev labels Dec 15, 2021
@octo-topi octo-topi self-assigned this Dec 15, 2021
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@octo-topi octo-topi force-pushed the tech-migrate-answers-id-bigint-with-downtime branch from dbdf7dd to 011dd4e Compare December 15, 2021 20:45
@octo-topi octo-topi closed this Jan 5, 2022
@yahyayouness yahyayouness reopened this Jul 11, 2022
@yahyayouness yahyayouness force-pushed the tech-migrate-answers-id-bigint-with-downtime branch 3 times, most recently from efd9613 to af710a0 Compare July 11, 2022 11:18
@yahyayouness yahyayouness self-assigned this Jul 11, 2022
@yahyayouness yahyayouness force-pushed the tech-migrate-answers-id-bigint-with-downtime branch 12 times, most recently from dfc42ec to e3bd398 Compare July 12, 2022 07:43
@yahyayouness yahyayouness force-pushed the tech-migrate-answers-id-bigint-with-downtime branch from e3bd398 to 92c438c Compare July 12, 2022 08:18
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@francois2metz francois2metz left a comment

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🌹 🌺 💮 🥀 🌷 🌻 🌸 LGTM 🌸 🌻 🌷 🥀 💮 🌺 🌹

@pix-service-auto-merge pix-service-auto-merge force-pushed the tech-migrate-answers-id-bigint-with-downtime branch from 92c438c to 089088e Compare July 19, 2022 08:25
@pix-service-auto-merge pix-service-auto-merge deleted the tech-migrate-answers-id-bigint-with-downtime branch July 19, 2022 08:32
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6 participants