public Path getDnsPath(Path path) throws MetaException {
    return getDnsPath(path, conf);
  }
Get a path with canonical scheme and authority.
<p>
Since creating a new file system object is expensive, this method
mimics getFileSystem() without creating an actual FileSystem object.
When the input path lacks a scheme or an authority this is added
from the default URI.

@param path
         Path to be canonicalized
@return Path with canonical scheme and authority
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/Warehouse.java