public static Path getQualifiedMobRootDir(Configuration conf) throws IOException {
    Path hbaseDir = new Path(conf.get(HConstants.HBASE_DIR));
    Path mobRootDir = new Path(hbaseDir, MobConstants.MOB_DIR_NAME);
    FileSystem fs = mobRootDir.getFileSystem(conf);
    return mobRootDir.makeQualified(fs.getUri(), fs.getWorkingDirectory());
  }
Gets the qualified root dir of the mob files.
@param conf The current configuration.
@return The qualified root dir.
hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java