Open the Microsoft Store and search for "Indexer Diagnostics."
In a healthy indexer, the hottest threads should be write (merging) or refresh . If the hottest thread is GC (Garbage Collection), you have a memory leak. If it is wait or park , you have a deadlock. indexer diagnostics download
The ingestion queue is growing linearly, but indexing throughput has collapsed. A diagnostics download will reveal if the indexer is stuck on a single problematic document (e.g., a 100MB text field with insane n-gram analysis) or if the merge scheduler is thrashing because of too many small segments. Open the Microsoft Store and search for "Indexer Diagnostics
Does not always fix deeper corruption that requires a full index rebuild. indexer diagnostics download