private Put createPut(int rowIdx, byte[] dummyData) throws IOException {
    Put p = new Put(Bytes.add(STARTROW, Bytes.toBytes(rowIdx)));
    p.setDurability(Durability.SKIP_WAL);
    p.addColumn(COLUMN_FAMILY, Bytes.toBytes("colX"), dummyData);
    return p;
  }
This test will first generate store files, then bulk load them and trigger the compaction. When
compaction, the cell value will be larger than the threshold.
hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestMobStoreCompaction.java