We see the following message on most of the indexers ( varies anywhere from 1-4): throttled: The index processor has paused data flow. Too many tsidx files in idx=myindex bucket="/xxxxxxx/xxxx/xxxxxxxxxx/splunk/db/myindex/db/hot_v1_648" , waiting for the splunk-optimize indexing helper to catch up merging them. Ensure reasonable disk space is available, and that I/O write throughput is not compromised. It's 24 hot buckets rolled to warm across all indexers. Currently we have 4 indexers and each has 2 parallel pipelines. Two of our indexes see this sort of the rate of roll. Rest of them ingest lot less data.
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