Hi, I was looking for an answer to the same problem, and I came across this older post which kind of confirmed my understanding of the issue and the available solutions: https://community.splunk.com/t5/Deployment-Architecture/Why-is-cluster-master-reporting-quot-Cannot-fix-search-count-as/m-p/150441/highlight/true#M5597 Short summary: hot buckets are streamed from the originating indexer to the other indexers in the cluster, but sometimes they get out of sync for various reasons and the CM starts displaying this type of errors. Two ways to fix it: either roll the buckets (via the GUI on the CM, the API endpoint or by performing a rolling restart of the peers) or wait that they naturally roll. In my case, I'll now be investigating why and how we have these "de-synchronisations". On a different note, and perhaps not completely relevant, you indicated your hot buckets to have a retention of 91 days. This seems pretty long to me (not double checked the doc on that but still). There is also the warm stage between hot and cold, I would typically have a shorter period for the hot buckets, and keep them warm for a sensible period, before rolling them cold.
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