public static long getTS(Path p) {
      return getTimestamp(p.getName());
    }
Split a path to get the start time For example: 10.20.20.171%3A60020.1277499063250 Could also
be a meta WAL which adds a '.meta' suffix or a synchronous replication WAL which adds a
'.syncrep' suffix. Check.
@param p path to split
@return start time
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.java