Hi, the docs for the SimpleRegionNormalizer say that empty regions are not merged. Looking at the code I don't see anything that actually filters out empty regions though.
And I have logs here: 2019-05-04 01:17:03,892 INFO org.apache.hadoop.hbase.master.normalizer.SimpleRegionNormalizer: Table XXX, small region size: 0 plus its neighbor size: 0, less than the avg size 5068.338632750398, merging them This is CDH 5.11 so it's a bit older but it already includes the documentation and I don't see anything in current master branch either. Am I missing something obvious? Cheers, Lars
