def create_session(self, lang='hive', properties=None):
application = 'beeswax' if lang == 'hive' or lang == 'llap' else lang
if has_session_pool():
session = Session.objects.get_tez_session(
self.user, application, MAX_NUMBER_OF_SESSIONS.get())
elif not has_multiple_sessions():
session = Session.objects.get_session(self.user,
application=application)
else:
session = None
reuse_session = session is not None
if not reuse_session:
db = dbms.get(self.user,
query_server=get_query_server_config(
name=lang, connector=self.interpreter))
session = db.open_session(self.user)
response = {'type': lang, 'id': session.id}
if not properties:
config = None
if USE_DEFAULT_CONFIGURATION.get():
config = DefaultConfiguration.objects.get_configuration_for_user(
app=lang, user=self.user)
if config is not None:
properties = config.properties_list
else:
properties = self.get_properties(lang)
response['properties'] = properties
response['configuration'] = json.loads(session.properties)
response['reuse_session'] = reuse_session
response['session_id'] = ''
try:
decoded_guid = session.get_handle().sessionId.guid
response['session_id'] = unpack_guid(decoded_guid)
except Exception as e:
LOG.warn('Failed to decode session handle: %s' % e)
if lang == 'impala' and session:
http_addr = _get_impala_server_url(session)
response['http_addr'] = http_addr
return response
def create_session(self, lang='hive', properties=None):
application = 'beeswax' if lang == 'hive' or lang == 'llap' else lang
uses_session_pool = has_session_pool()
uses_multiple_sessions = has_multiple_sessions()
if lang == 'impala':
uses_session_pool = False
uses_multiple_sessions = False
try:
if uses_session_pool:
session = Session.objects.get_tez_session(
self.user, application, MAX_NUMBER_OF_SESSIONS.get())
elif not uses_multiple_sessions:
session = Session.objects.get_session(self.user,
application=application)
else:
session = None
except Exception as e:
if 'Connection refused' in str(
e) or 'Name or service not known' in str(e):
LOG.exception(
'Connection being refused or service is not available in either session or in multiple sessions'
'- HA failover')
reset_ha()
reuse_session = session is not None
if not reuse_session:
db = dbms.get(self.user,
query_server=get_query_server_config(
name=lang, connector=self.interpreter))
try:
session = db.open_session(self.user)
except Exception as e:
if 'Connection refused' in str(
e) or 'Name or service not known' in str(e):
LOG.exception(
'Connection being refused or service is not available in reuse session - HA failover'
)
reset_ha()
response = {'type': lang, 'id': session.id}
if not properties:
config = None
if USE_DEFAULT_CONFIGURATION.get():
config = DefaultConfiguration.objects.get_configuration_for_user(
app=lang, user=self.user)
if config is not None:
properties = config.properties_list
else:
properties = self.get_properties(lang)
response['properties'] = properties
response['configuration'] = json.loads(session.properties)
response['reuse_session'] = reuse_session
response['session_id'] = ''
try:
decoded_guid = session.get_handle().sessionId.guid
response['session_id'] = unpack_guid(decoded_guid)
except Exception as e:
LOG.warning('Failed to decode session handle: %s' % e)
if lang == 'impala' and session:
http_addr = _get_impala_server_url(session)
response['http_addr'] = http_addr
return response
