283 lines
11 KiB
Plaintext
283 lines
11 KiB
Plaintext
================================================================================
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ROLLBACK RUNBOOK: rb_921c0bca
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================================================================================
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Migration ID: 23a52ed1507f
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Created: 2026-02-16T13:47:31.108500
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EMERGENCY CONTACTS
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----------------------------------------
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Incident Commander: TBD - Assigned during migration
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Phone: +1-XXX-XXX-XXXX
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Email: incident.commander@company.com
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Backup: backup.commander@company.com
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Technical Lead: TBD - Migration technical owner
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Phone: +1-XXX-XXX-XXXX
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Email: tech.lead@company.com
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Backup: senior.engineer@company.com
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Business Owner: TBD - Business stakeholder
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Phone: +1-XXX-XXX-XXXX
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Email: business.owner@company.com
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Backup: product.manager@company.com
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On-Call Engineer: Current on-call rotation
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Phone: +1-XXX-XXX-XXXX
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Email: oncall@company.com
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Backup: backup.oncall@company.com
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Executive Escalation: CTO/VP Engineering
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Phone: +1-XXX-XXX-XXXX
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Email: cto@company.com
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Backup: vp.engineering@company.com
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ESCALATION MATRIX
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----------------------------------------
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LEVEL_1:
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Trigger: Single component failure
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Response Time: 5 minutes
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Contacts: on_call_engineer, migration_lead
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Actions: Investigate issue, Attempt automated remediation, Monitor closely
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LEVEL_2:
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Trigger: Multiple component failures or single critical failure
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Response Time: 2 minutes
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Contacts: senior_engineer, team_lead, devops_lead
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Actions: Initiate rollback, Establish war room, Notify stakeholders
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LEVEL_3:
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Trigger: System-wide failure or data corruption
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Response Time: 1 minutes
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Contacts: engineering_manager, cto, incident_commander
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Actions: Emergency rollback, All hands on deck, Executive notification
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EMERGENCY:
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Trigger: Business-critical failure with customer impact
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Response Time: 0 minutes
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Contacts: ceo, cto, head_of_operations
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Actions: Emergency procedures, Customer communication, Media preparation if needed
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AUTOMATIC ROLLBACK TRIGGERS
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----------------------------------------
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• Error Rate Spike
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Condition: error_rate > baseline * 5 for 5 minutes
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Auto-Execute: Yes
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Evaluation Window: 5 minutes
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Contacts: on_call_engineer, migration_lead
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• Response Time Degradation
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Condition: p95_response_time > baseline * 3 for 10 minutes
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Auto-Execute: No
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Evaluation Window: 10 minutes
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Contacts: performance_team, migration_lead
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• Service Availability Drop
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Condition: availability < 95% for 2 minutes
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Auto-Execute: Yes
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Evaluation Window: 2 minutes
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Contacts: sre_team, incident_commander
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• Data Integrity Check Failure
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Condition: data_validation_failures > 0
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Auto-Execute: Yes
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Evaluation Window: 1 minutes
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Contacts: dba_team, data_team
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• Migration Progress Stalled
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Condition: migration_progress unchanged for 30 minutes
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Auto-Execute: No
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Evaluation Window: 30 minutes
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Contacts: migration_team, dba_team
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ROLLBACK PHASES
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----------------------------------------
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1. ROLLBACK_CLEANUP
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Description: Rollback changes made during cleanup phase
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Urgency: MEDIUM
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Duration: 570 minutes
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Risk Level: MEDIUM
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Prerequisites:
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✓ Incident commander assigned and briefed
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✓ All team members notified of rollback initiation
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✓ Monitoring systems confirmed operational
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✓ Backup systems verified and accessible
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Steps:
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99. Validate rollback completion
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Duration: 10 min
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Type: manual
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Success Criteria: cleanup fully rolled back, All validation checks pass
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Validation Checkpoints:
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☐ cleanup rollback steps completed
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☐ System health checks passing
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☐ No critical errors in logs
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☐ Key metrics within acceptable ranges
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☐ Validation command passed: SELECT COUNT(*) FROM {table_name};...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.tables WHE...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.columns WH...
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2. ROLLBACK_CONTRACT
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Description: Rollback changes made during contract phase
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Urgency: MEDIUM
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Duration: 570 minutes
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Risk Level: MEDIUM
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Prerequisites:
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✓ Incident commander assigned and briefed
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✓ All team members notified of rollback initiation
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✓ Monitoring systems confirmed operational
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✓ Backup systems verified and accessible
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✓ Previous rollback phase completed successfully
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Steps:
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99. Validate rollback completion
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Duration: 10 min
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Type: manual
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Success Criteria: contract fully rolled back, All validation checks pass
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Validation Checkpoints:
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☐ contract rollback steps completed
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☐ System health checks passing
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☐ No critical errors in logs
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☐ Key metrics within acceptable ranges
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☐ Validation command passed: SELECT COUNT(*) FROM {table_name};...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.tables WHE...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.columns WH...
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3. ROLLBACK_MIGRATE
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Description: Rollback changes made during migrate phase
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Urgency: MEDIUM
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Duration: 570 minutes
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Risk Level: MEDIUM
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Prerequisites:
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✓ Incident commander assigned and briefed
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✓ All team members notified of rollback initiation
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✓ Monitoring systems confirmed operational
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✓ Backup systems verified and accessible
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✓ Previous rollback phase completed successfully
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Steps:
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99. Validate rollback completion
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Duration: 10 min
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Type: manual
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Success Criteria: migrate fully rolled back, All validation checks pass
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Validation Checkpoints:
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☐ migrate rollback steps completed
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☐ System health checks passing
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☐ No critical errors in logs
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☐ Key metrics within acceptable ranges
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☐ Validation command passed: SELECT COUNT(*) FROM {table_name};...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.tables WHE...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.columns WH...
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4. ROLLBACK_EXPAND
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Description: Rollback changes made during expand phase
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Urgency: MEDIUM
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Duration: 570 minutes
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Risk Level: MEDIUM
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Prerequisites:
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✓ Incident commander assigned and briefed
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✓ All team members notified of rollback initiation
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✓ Monitoring systems confirmed operational
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✓ Backup systems verified and accessible
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✓ Previous rollback phase completed successfully
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Steps:
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99. Validate rollback completion
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Duration: 10 min
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Type: manual
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Success Criteria: expand fully rolled back, All validation checks pass
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Validation Checkpoints:
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☐ expand rollback steps completed
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☐ System health checks passing
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☐ No critical errors in logs
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☐ Key metrics within acceptable ranges
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☐ Validation command passed: SELECT COUNT(*) FROM {table_name};...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.tables WHE...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.columns WH...
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5. ROLLBACK_PREPARATION
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Description: Rollback changes made during preparation phase
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Urgency: MEDIUM
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Duration: 570 minutes
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Risk Level: MEDIUM
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Prerequisites:
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✓ Incident commander assigned and briefed
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✓ All team members notified of rollback initiation
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✓ Monitoring systems confirmed operational
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✓ Backup systems verified and accessible
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✓ Previous rollback phase completed successfully
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Steps:
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1. Drop migration artifacts
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Duration: 5 min
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Type: sql
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Script:
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-- Drop migration artifacts
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DROP TABLE IF EXISTS migration_log;
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DROP PROCEDURE IF EXISTS migrate_data();
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Success Criteria: No migration artifacts remain
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99. Validate rollback completion
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Duration: 10 min
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Type: manual
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Success Criteria: preparation fully rolled back, All validation checks pass
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Validation Checkpoints:
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☐ preparation rollback steps completed
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☐ System health checks passing
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☐ No critical errors in logs
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☐ Key metrics within acceptable ranges
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☐ Validation command passed: SELECT COUNT(*) FROM {table_name};...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.tables WHE...
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☐ Validation command passed: SELECT COUNT(*) FROM information_schema.columns WH...
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DATA RECOVERY PLAN
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----------------------------------------
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Recovery Method: point_in_time
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Backup Location: /backups/pre_migration_{migration_id}_{timestamp}.sql
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Estimated Recovery Time: 45 minutes
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Recovery Scripts:
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• pg_restore -d production -c /backups/pre_migration_backup.sql
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• SELECT pg_create_restore_point('rollback_point');
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• VACUUM ANALYZE; -- Refresh statistics after restore
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Validation Queries:
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• SELECT COUNT(*) FROM critical_business_table;
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• SELECT MAX(created_at) FROM audit_log;
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• SELECT COUNT(DISTINCT user_id) FROM user_sessions;
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• SELECT SUM(amount) FROM financial_transactions WHERE date = CURRENT_DATE;
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POST-ROLLBACK VALIDATION CHECKLIST
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----------------------------------------
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1. ☐ Verify system is responding to health checks
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2. ☐ Confirm error rates are within normal parameters
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3. ☐ Validate response times meet SLA requirements
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4. ☐ Check all critical business processes are functioning
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5. ☐ Verify monitoring and alerting systems are operational
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6. ☐ Confirm no data corruption has occurred
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7. ☐ Validate security controls are functioning properly
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8. ☐ Check backup systems are working correctly
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9. ☐ Verify integration points with downstream systems
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10. ☐ Confirm user authentication and authorization working
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11. ☐ Validate database schema matches expected state
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12. ☐ Confirm referential integrity constraints
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13. ☐ Check database performance metrics
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14. ☐ Verify data consistency across related tables
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15. ☐ Validate indexes and statistics are optimal
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16. ☐ Confirm transaction logs are clean
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17. ☐ Check database connections and connection pooling
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POST-ROLLBACK PROCEDURES
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1. Monitor system stability for 24-48 hours post-rollback
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2. Conduct thorough post-rollback testing of all critical paths
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3. Review and analyze rollback metrics and timing
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4. Document lessons learned and rollback procedure improvements
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5. Schedule post-mortem meeting with all stakeholders
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6. Update rollback procedures based on actual experience
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7. Communicate rollback completion to all stakeholders
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8. Archive rollback logs and artifacts for future reference
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9. Review and update monitoring thresholds if needed
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10. Plan for next migration attempt with improved procedures
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11. Conduct security review to ensure no vulnerabilities introduced
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12. Update disaster recovery procedures if affected by rollback
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13. Review capacity planning based on rollback resource usage
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14. Update documentation with rollback experience and timings
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