5be64ce4_Apache_HBase___Reference_Guide__Description
[Parameter] hbase.hregion.majorcompaction.jitter [Default] .50F [Description] 
A multiplier applied to hbase.hregion.majorcompaction to cause compaction to occur a given amount of time either side of hbase.hregion.majorcompaction. The smaller the number, the closer the compactions will happen to the hbase.hregion.majorcompaction interval. Expressed as a floating-point decimal.
Apache HBase ™ Reference Guide
Description