public static RegionInfo getMobRegionInfo(TableName tableName) {
    return RegionInfoBuilder.newBuilder(tableName).setStartKey(MobConstants.MOB_REGION_NAME_BYTES)
      .setEndKey(HConstants.EMPTY_END_ROW).setSplit(false).setRegionId(0).build();
  }
Gets the RegionInfo of the mob files. This is a dummy region. The mob files are not saved in a
region in HBase. It's internally used only.
@return A dummy mob region info.
hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java