Traceback (most recent call last):


 "/data/projects/fate/python/fate_flow/fate_flow_server.py", line 94, in <module>

session_utils.init_session_for_flow_server()


 "/data/projects/fate/python/fate_flow/utils/session_utils.py", line 60, in init_session_for_flow_server

options={"eggroll.session.processors.per.node": 1})


 "/data/projects/fate/python/arch/api/session.py", line 112, in init

RuntimeInstance.SESSION = builder.build_session()


 "/data/projects/fate/python/arch/api/impl/based_2x/build.py", line 38, in build_session

persistent_engine=self._persistent_engine, options=self._options)


 "/data/projects/fate/python/arch/api/impl/based_2x/session.py", line 45, in build_session

eggroll_session = build_eggroll_session(work_mode=work_mode, job_id=job_id, options=options)


 "/data/projects/fate/python/arch/api/impl/based_2x/session.py", line 36, in build_eggroll_session

return session_init(session_id=job_id, options=options)


 "/data/projects/fate/eggroll/python/eggroll/core/session.py", line 32, in session_init

er_session = ErSession(session_id=session_id, options=options)


 "/data/projects/fate/eggroll/python/eggroll/core/session.py", line 113, in __init__

self.__session_meta = self._cluster_manager_client.get_or_create_session(session_meta)


 "/data/projects/fate/eggroll/python/eggroll/core/client.py", line 176, in get_or_create_session

serdes_type=self.__serdes_type))


 "/data/projects/fate/eggroll/python/eggroll/core/client.py", line 226, in __do_sync_request_internal

serdes_type=serdes_type)


 "/data/projects/fate/eggroll/python/eggroll/core/client.py", line 54, in simple_sync_send

results = self.sync_send(inputs=[input], output_types=[output_type], endpoint=endpoint, command_uri=command_uri, serdes_type=serdes_type)


 "/data/projects/fate/eggroll/python/eggroll/core/client.py", line 84, in sync_send

raise CommandCallError(command_uri, endpoint, e)
eggroll.core.client.CommandCallError: ('Failed to call command: CommandURI(_uri=v1/cluster-manager/session/getOrCreateSession) to endpoint: <ip>:4670, caused by: ', <_Rendezvous of RPC that terminated with:

Traceback (most recent call last):

 "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 516, in extract_info
ie_result = ie.extract(url)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 169, in extract
return self._real_extract(url)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 845, in _real_extract
encrypted_sig, video_id, player_url, age_gate)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 479, in _decrypt_signature
u'Automatic signature extraction failed: ' + tb, cause=e)ExtractorError: Automatic signature extraction failed: Traceback (most recent call last):