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Rollback

Rollback ka matlab hai kisi system, application, database, ya infrastructure ko uski previous…

Overview
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Rollback — Quick Facts

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Field: Detail

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Full Name: Rollback (System State Reversion)

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Short Name: Rollback

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Category: DevOps, Version Control, Database,…

Topic 1
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Infobox

📚 | Field | Detail | |---|---| | Full Name | Rollback (System State Reversion) | | Short…
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Rollback Decision Flow

💡 Neeche diya gaya Mermaid diagram ek typical rollback decision process dikhata hai —…
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1. Types of Rollback

🎯 Rollback multiple contexts me hota hai — har context ka scope, speed, aur complexity alag…
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2. Rollback Strategies

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Do identical environments (blue =…

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Green par deploy karo, test karo

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Issue aaye to traffic wapas blue…

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Cost: double infrastructure…

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3. Database Rollback

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Database transaction ke andar jab…

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ROLLBACK command se sab…

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ACID guarantee: Atomicity ensure…

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WAL (Write-Ahead Logging)…

Topic 6
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4. Deployment Rollback

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Kubernetes har Deployment ka…

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kubectl rollout undo…

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kubectl rollout undo…

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RevisionHistoryLimit control karta…

Topic 7
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5. Version Control Rollback

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Shared/pushed branches par: git…

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Local/unpushed branches par: git…

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Force push (git push --force)…

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Merge revert karna: git revert -m…

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6. Infrastructure Rollback

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Terraform ka explicit "rollback"…

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Strategy 1: Git se previous…

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Strategy 2: Terraform state file…

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Strategy 3: Terraform Cloud me…

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7. Configuration Rollback

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Ansible: Previous playbook run…

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Chef/Puppet: Previous…

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Consul/etcd/ZooKeeper: Key-value…

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Feature flags configuration ka hi…

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8. Rollback Automation

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Tools: Argo Rollouts, Flagger,…

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Analysis phase me automated…

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Agar metrics degrade hon to…

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No human intervention needed —…

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9. Challenges & Risks

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"We'll fix forward" mindset bina…

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Rollback procedure kabhi test nahi…

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Database backup nahi liya…

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Rollback ke baad root cause…

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10. Rollback in Distributed Systems

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Distributed transactions me ACID…

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Har step ka ek compensating action…

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Agar koi step fail ho to sab…

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Example: Order placed → Payment…

Topic 13
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11. Rollback Metrics & Monitoring

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Change Failure Rate: percentage of…

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Mean Time to Restore (MTTR):…

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Elite teams ka MTTR < 1 hour hota…

Topic 14
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12. Best Practices

✨ 1. Har deployment ka rollback plan mandatory karo — bina rollback plan ke production…
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Glossary

🌟 | Term | Meaning | |---|---| | Rollback | System ko previous known-good state me revert…
Diagram
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Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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Deployment

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Continuous Delivery

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Continuous Integration

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Blue-Green Deployment

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Feature Flag

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Database Migration

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Rollback ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Rollback ka 'Full Name' kya hai?

Complete! 🎉
COMPLETE

Rollback Complete!

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Rollback Complete

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