The temporary buckets you describe are searchable hot buckets. They're just actively open for writing "now". You'll wait for a few possibilities: the bucket going idle (maxHotIdleSecs), the bucket being crowded out (maxHotBuckets), reaching its largest size (maxDataSize, default "auto" or 750MB unless your index is "main", in which case it's "auto_high_volume" which is 10 GB on a 64-bit platform). Also, a restart (on the "start" part of the stop/start) will force buckets to roll from hot to warm. There are a few edge cases in an indexing cluster related to a loss of connectivity with the cluster master as well.
In any event, just wait, and eventually you'll have many more rb than the hot searchable copies!
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