Tag: Schema
Problems related to database or storage schema issues, such as schema mismatches, validation failures, or migration problems
| ID | Title | Description | Category | Technology | Tags |
|---|---|---|---|---|---|
| prequel-2025-0097 Medium Impact: 6/10 Mitigation: 5/10 | Loki Compactor Schema Table Mismatch | Loki compactor encounters schema configuration mismatches when it finds index tables in object storagethat don't correspond to any configured schema period in the Loki configuration. This causes the compactorto skip compaction for those tables, leading to storage inefficiency and potential query performance degradation.The issue typically occurs after schema migrations, configuration changes, or when legacy data exists withdifferent table naming conventions. | Observability Problems | compactor | LokiCompactorSchemaConfigurationStorageObservabilityIndex |