context.py 文件源码

def applicationId(self):
        """
        A unique identifier for the Spark application.
        Its format depends on the scheduler implementation.

        * in case of local spark app something like 'local-1433865536131'
        * in case of YARN something like 'application_1433865536131_34483'

        >>> sc.applicationId  # doctest: +ELLIPSIS
        u'local-...'
        """
        return self._jsc.sc().applicationId()