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MSG_CI_MASTER_MERGE_COMPLETED
This value reports completion, not failure
MSG_CI_MASTER_MERGE_COMPLETED (0x40001007) is an Indexing Service informational result: a master merge has completed for the named catalog. Indexing Service merges temporary word lists and shadow indexes into the catalog's master index, so this message marks the end of that maintenance step.
Useful operational data
- Catalog name substituted into the message and the service instance that owns it.
- Merge start/completion timestamps and whether the merge was scheduled, automatic or explicitly forced.
- Catalog state immediately after completion: query availability, pending indexing work and any errors that occurred before or after the merge.
- Disk-space and catalog-growth measurements if the merge was investigated because of capacity or performance symptoms.
How to interpret it
Do not open an incident merely because this value appears. Correlate it with the operation that requested or triggered the merge. If searches remain stale after the completion message, diagnose crawl/filter/catalog state separately; the completion status does not guarantee that every source document was indexed successfully.
Verification
Run a known query against the catalog after the merge and confirm expected indexed content is visible. If a forced master merge was used during troubleshooting, keep the original indexing error or stale-document evidence—the successful merge only proves that the merge itself completed.
Technical references
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