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CI_E_OUTOFSEQ_INCREMENT_DATA
Incremental load data arrived out of sequence
CI_E_OUTOFSEQ_INCREMENT_DATA is HRESULT 0x8004181A (-2147215334 signed; 2147751962 unsigned). Its severity bit is 1, facility is 4 (FACILITY_ITF for these values), and code field is 0x181A. Standard HRESULT severity rules classify the value as a failure. AllStat describes the value as “The incremental data given to Load is not valid. It may be out of sequence.”
Where the result belongs
This result belongs to applying ordered change data through a content-index Load operation. The decisive interpretation is that the next increment does not follow the catalog checkpoint or sequence expected by the loader. Keep the symbolic constant and method stage together in logs; its hexadecimal value alone cannot identify the owning transition or input.
The legacy content-index helper layer has explicit object, catalog and service states. In the result investigation, a generic retry can hide lifecycle, ordering or policy defects. This context narrows the responsible component without replacing the code-specific checks below.
Concrete causes
- check a batch is replayed after acknowledgment loss.
- check parallel workers reorder increments.
- check a checkpoint is restored without its matching data stream.
- check source and target generations diverge.
The useful hypothesis for it must explain both applying ordered change data through a content-index Load operation and the documented condition. Compare the failing case with a control that preserves catalog generation and checkpoint and changes only batch sequence and predecessor; this prevents unrelated environment differences from dominating the result test.
Evidence to retain
- Catalog generation and checkpoint; preserve the observation under the result correlation record.
- Batch sequence and predecessor; preserve the observation under the result correlation record.
- Producer/consumer timestamps; preserve the observation under the result correlation record.
- Hash or identifier of each increment; preserve the observation under the result correlation record.
Capture catalog generation and checkpoint before releasing objects, closing handles or reconnecting. Retain the raw HRESULT with batch sequence and predecessor, component version, UTC timestamp and correlation ID. Bound the result telemetry to diagnostic metadata because document content, credentials and unrestricted query text may be sensitive.
Diagnostic path
- Stop applying later increments. Associate this observation specifically with this result.
- Compare the failing predecessor with the catalog checkpoint.
- Determine whether data is duplicate, missing or from another generation.
- Resume from a verified checkpoint or perform a controlled full reload. Associate this observation specifically with it.
Change one variable per it control run. Preserve the component version and target identity, then alter only the condition described as the next increment does not follow the catalog checkpoint or sequence expected by the loader. This isolates whether it is causal rather than merely repeatable.
Recovery and retry
Replay only the exact missing ordered data, or rebuild from a trusted baseline. Blindly accepting the batch can corrupt logical state. Record whether applying ordered change data through a content-index Load operation produced any content, update or state transition before returning. If completion remains unknown, the path must not replay non-idempotent work until the owner confirms final state.
The retry gate for it should be a concrete change in catalog generation and checkpoint or batch sequence and predecessor. A timer alone cannot demonstrate that the result contract condition has changed.
What must not be inferred
It does not mean the document-level change itself is invalid. Without the call boundary for applying ordered change data through a content-index Load operation, it also cannot identify which wrapper or configuration layer introduced the condition.
Nearby results
CI_E_DUPLICATE_NOTIFICATION concerns duplicate work-ID notifications; it protects the ordered incremental stream. In it telemetry, preserve neighboring constants separately because the same visible symptom may require a different caller action, owner or recovery gate.
Developer and administrator actions
- The result investigation should record At the code boundary, keep catalog generation and checkpoint beside the returned HRESULT.
- The result investigation should record In telemetry, correlate batch sequence and predecessor with the target and component generation.
- The result investigation should record For regression coverage, force the documented condition: the next increment does not follow the catalog checkpoint or sequence expected by the loader.
- The result investigation should record For operations staff, expose the corrective state change rather than a generic retry button.
- The result investigation should record After remediation, validate one known-good control and the original failing case.
Operational example
Two queue partitions deliver batches 105 and 104 in reverse order. A single sequencer holds 105 until 104 commits. In this scenario, handling it at its real contract boundary prevents the application from collapsing a precise state into an unhelpful generic “search failed” message.
Official Microsoft references
- Microsoft: content-indexing helper-function values — official contract information relevant to it.
- Microsoft: Content-Indexing values
- Microsoft: HRESULT values
- Microsoft: Windows Search SQL syntax
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