https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Tue, 16 Jun 2026 00:00:00 GMT https://www.youngju.dev/blog/database/2026-06-16-migration-rollback-verification-strategies.en https://www.youngju.dev/blog/database/2026-06-16-migration-rollback-verification-strategies.en This post explores why rollback is hard in database migrations, and how to distinguish reversible changes from irreversible ones. It covers backups and recovery points, multi-stage verification, canary rollout, feature flags, automated data verification, and incident runbooks — the practical strategies for designing a safety net. Tue, 16 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) databasemigrationrollbackverificationfeature-flagrunbook https://www.youngju.dev/blog/database/2026-06-16-migration-rollback-verification-strategies.ja https://www.youngju.dev/blog/database/2026-06-16-migration-rollback-verification-strategies.ja データベースマイグレーションでロールバックがなぜ難しいのか、そして元に戻せる変更と元に戻せない変更をどう区別するのかを扱います。バックアップと復旧ポイント、多段階の検証、カナリアロールアウト、フィーチャーフラグ、自動化されたデータ検証、インシデントランブックまで、安全網を設計するための実務戦略を整理します。 Tue, 16 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) databasemigrationrollbackverificationfeature-flagrunbook https://www.youngju.dev/blog/database/2026-06-16-migration-rollback-verification-strategies https://www.youngju.dev/blog/database/2026-06-16-migration-rollback-verification-strategies 데이터베이스 마이그레이션에서 롤백이 왜 어려운지, 그리고 되돌릴 수 있는 변경과 되돌릴 수 없는 변경을 어떻게 구분하는지 다룹니다. 백업과 복구 지점, 다단계 검증, 카나리 배포, 피처 플래그, 자동화된 데이터 검증, 인시던트 런북까지 안전망을 설계하는 실무 전략을 정리합니다. Tue, 16 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) databasemigrationrollbackverificationfeature-flagrunbook https://www.youngju.dev/blog/devops/2026-03-07-devops-argocd-gitops-progressive-delivery-rollback.en https://www.youngju.dev/blog/devops/2026-03-07-devops-argocd-gitops-progressive-delivery-rollback.en A comprehensive guide to ArgoCD GitOps workflows covering progressive delivery with Argo Rollouts, canary and blue-green deployment strategies, automated rollback, sync policies, multi-cluster management, and production troubleshooting. Sat, 07 Mar 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) devopsargocdgitopsprogressive-deliverycanary-deploymentrollbackkubernetes2026-03 https://www.youngju.dev/blog/devops/2026-03-07-devops-argocd-gitops-progressive-delivery-rollback.ja https://www.youngju.dev/blog/devops/2026-03-07-devops-argocd-gitops-progressive-delivery-rollback.ja ArgoCD GitOpsワークフローの包括的ガイド。Argo Rolloutsによるプログレッシブデリバリー、カナリアおよびブルーグリーンデプロイメント戦略、自動ロールバック、同期ポリシー、マルチクラスタ管理、本番環境でのトラブルシューティングまでを網羅。 Sat, 07 Mar 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) devopsargocdgitopsprogressive-deliverycanary-deploymentrollbackkubernetes2026-03