public static WALEdit createRegionEventWALEdit(RegionInfo hri,
    RegionEventDescriptor regionEventDesc) {
    return createRegionEventWALEdit(getRowForRegion(hri), regionEventDesc);
  }
@return A meta Marker WALEdit that has a single Cell whose value is the passed in
        <code>regionEventDesc</code> serialized and whose row is this region, columnfamily is
        {@link #METAFAMILY} and qualifier is {@link #REGION_EVENT_PREFIX} +
        {@link RegionEventDescriptor#getEventType()}; for example
        HBASE::REGION_EVENT::REGION_CLOSE.
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALEdit.java