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CI_CORRUPT_CATALOG
CI_CORRUPT_CATALOG — 0xC0041801
The built-in message is only the immediate status; the useful boundary is that catalog-level metadata describing scopes, indexes, or administration state is inconsistent or unreadable.
Operational meaning
Indexing Service catalogs are derived from source documents, filter output, word lists, indexes, and a property store. In the context of corrupt Indexing Service catalog metadata, corruption is reported, preserve source data and catalog evidence, validate storage, and rebuild derived structures rather than modifying documents to match the damaged index. Locate the first component changing state in corrupt Indexing Service catalog metadata and distinguish later summary errors.
Important boundary. Catalog metadata corruption is narrower than a bad source document and can prevent the service from reaching individual files. Record the exact constant and returning API.
Facts worth preserving
| Preserve | Why it matters |
|---|---|
| Catalog identity/path, scope definitions, administrative properties, and first failure | Provides a stable before/after comparison for rebuilding or correcting the index path. |
| Service and catalog version, registry configuration, and backup state | Shows whether the first inconsistency arose during filtering, storage, administration, or enumeration. |
| Filesystem health and recent moves/restores of catalog files | Ties the result to one catalog, source document, filter, or query object. |
| Whether a new catalog can index the same scopes | Separates catalog state from source data, filter output, and client lifecycle. |
Preserve the smallest reproducible evidence set and remove document content or access-control details before sharing diagnostics.
Reproduce the boundary safely
- Export scope/configuration information before changing catalog files. Retain a known-good document or query so a broad catalog rebuild is not mistaken for repair of the reported failure.
- Create a new catalog with one identical scope. Record the first filter, catalog, merge, query, or enumeration result that changes.
- Compare metadata on a known-good catalog from the same service version. Keep source bytes, scope, filter version, and unrelated catalog settings fixed.
Retry only after one controlled catalog, filter, source, query, or merge condition changed; reopening the service may create a new catalog generation and hide the original evidence.
What not to infer
| Observed comparison | Interpretation |
|---|---|
| A known-good object succeeds through the same component | The platform path exists; concentrate on the production object, identity, metadata, or state captured above. |
| The control fails at the same first operation | Preserve catalog, storage, filter-host, source, and query evidence before modifying indexed documents. |
| The status changes after one deliberate adjustment | The diagnostic boundary moved; the replacement status now describes the next contract to investigate. |
Closing the incident
Correction: Recreate or restore the catalog metadata after storage validation, then re-add scopes through supported administration objects. Keep the original catalog configuration, source inventory, filter identity, query definition, and event sequence so the change can be reversed and explained.
Accept the repair only when the catalog opens, scopes match the intended configuration, and indexing/querying survives restart. Repeat the original supported operation under the original identity and object state; a new catalog, different source scope, or replacement filter is useful comparison evidence but not final regression proof.
Technical references
These sources describe the API, service architecture, and status values relevant to this diagnosis: Check version-specific behavior against the Windows and Indexing Service generation that produced the result.
- Microsoft: Indexing Service purpose and architecture — defines the formal status or component boundary.
- Microsoft: Indexing Service helper-function values — documents the relevant API or lifecycle.
- Microsoft: indexing and catalog management — provides the architecture, format, or protocol context.
- Microsoft: Indexing Service configuration entries — supports the controlled verification criteria.
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