I have a busy region, and there are 43 StoreFiles (> compactionThreshold=8) in this region. Now, I stopped the client and stopped put new data into it. I expect these StoreFiles to be compacted later.
But, one day after, these 43 StoreFiles are still there. It seems the compaction does not work automatically. And I checked the code, it seems the compaction would only start after split....