Problem: DR weekly test failed with ORA-00600 [kcbzib_kcrsds_1] when executed
via cron, but succeeded when run manually. Error occurred during "ALTER DATABASE
OPEN RESETLOGS" step after successful restore and recovery.
Root Cause Analysis:
- Manual test (12:09): Undo initialization = 0ms, no errors
- Cron test (10:45): Undo initialization = 2735ms, ORA-00600 crash
- Alert log showed: "Undo initialization recovery: err:600"
- Oracle instance was in inconsistent state from previous run
The cleanup_database.ps1 script had an "optimization" that preserved the
running Oracle service to "save ~30s startup time". This left the service
in an inconsistent state between test runs, causing Oracle to crash when
attempting to open the database with RESETLOGS.
Solution:
Modified cleanup_database.ps1 to ALWAYS stop Oracle service completely:
1. SHUTDOWN ABORT the instance (not just when /AFTER flag)
2. Stop-Service OracleServiceROA (force clean state)
3. Kill remaining oracle processes
4. Service starts fresh during restore (clean Undo initialization)
Changes:
- Removed if/else branch that skipped shutdown before restore
- Always perform full shutdown regardless of /AFTER parameter
- Updated messages to reflect clean state approach
- Added explanation: "This ensures no state inconsistencies (prevents ORA-00600)"
Testing: Manual test confirmed clean 0ms Undo initialization after fix.
Related: Works in conjunction with weekly-dr-test-proxmox.sh PATH fix (commit 34f91ba)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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