public static void updateRegionLocation(Connection connection, RegionInfo regionInfo,
    ServerName sn, long openSeqNum, long masterSystemTime) throws IOException {
    updateLocation(connection, regionInfo, sn, openSeqNum, masterSystemTime);
  }
Updates the location of the specified region in hbase:meta to be the specified server hostname
and startcode.
<p>
Uses passed catalog tracker to get a connection to the server hosting hbase:meta and makes
edits to that region.
@param connection       connection we're using
@param regionInfo       region to update location of
@param openSeqNum       the latest sequence number obtained when the region was open
@param sn               Server name
@param masterSystemTime wall clock time from master if passed in the open region RPC
hbase-server/src/main/java/org/apache/hadoop/hbase/MetaTableAccessor.java