Waiting for api-server to start..

[amandeepsingh91]

I'm Using single node installation (Openstack Ocata + Opencontrail 4.0)

After running ./contrail.sh start command

Sometime the command execute successfully but sometimes it fails and generate response like :

2017-09-15 11:25:37 ++ screen -S contrail -p apiSrv -X stuff '/usr/bin/contrail-api --conf_file /etc/contrail/contrail-api.conf --reset_config --rabbit_user rabbitcontrail --rabbit_password contrail123 --rabbit_server 192.168.56.104 & echo $! >/home/stack/contrail-installer/status/contrail/apiSrv.pid; fg || echo "apiSrv failed to start" | tee "/home/stack/contrail-installer/status/contrail/apiSrv'failure"
2017-09-15 11:25:37 Waiting for api-server to start...
2017-09-15 11:25:37 ++ [[ apiSrv == \a\g\e\n\t ]]
2017-09-15 11:25:37 ++ echo 'Waiting for api-server to start...'
2017-09-15 11:25:37 ++ timeout 180 sh -c 'while ! http_proxy= wget -q -O- http://192.168.56.104:8082; do sleep 1; done'
2017-09-15 11:28:37 api-server did not start
2017-09-15 11:28:37 ++ echo 'api-server did not start'
2017-09-15 11:28:37 exited with status :1
2017-09-15 11:28:37 ++ exit 1
2017-09-15 11:28:37 ++ clean
2017-09-15 11:28:37 ++ local r=1
2017-09-15 11:28:37 ++ echo 'exited with status :1'
2017-09-15 11:28:37 ++ exit 1

Logs : apiSrv

Traceback (most recent call last):
File "/usr/bin/contrail-api", line 11, in
load_entry_point('vnc-cfg-api-server==0.1.dev0', 'console_scripts', 'contrail-api')()
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 3445, in server_main
main(args_str, VncApiServer(args_str))
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 1395, in init
self._db_connect(self._args.reset_config)
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 2452, in _db_connect
obj_cache_exclude_types=obj_cache_exclude_types, connection=rdbms_connection)
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_db.py", line 606, in init
self._zk_db.master_election("/api-server-election", db_client_init)
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_db.py", line 421, in master_election
func, *args)
File "/usr/lib/python2.7/dist-packages/cfgm_common/zkclient.py", line 405, in master_election
self._election.run(func, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/kazoo/recipe/election.py", line 54, in run
func(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_db.py", line 604, in db_client_init
obj_cache_exclude_types)
File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_db.py", line 92, in init
obj_cache_exclude_types=obj_cache_exclude_types, pool_size=20)
File "/usr/lib/python2.7/dist-packages/cfgm_common/vnc_cassandra.py", line 143, in init
self._cassandra_init(server_list)
File "/usr/lib/python2.7/dist-packages/cfgm_common/vnc_cassandra.py", line 505, in _cassandra_init
self._cassandra_ensure_keyspace(keyspace, cf_dict)
File "/usr/lib/python2.7/dist-packages/cfgm_common/vnc_cassandra.py", line 544, in _cassandra_ensure_keyspace
self.sys_mgr.drop_keyspace(keyspace_name)
File "/usr/local/lib/python2.7/dist-packages/pycassa/system_manager.py", line 248, in drop_keyspace
self._schema_update(self._conn.system_drop_keyspace, keyspace)
File "/usr/local/lib/python2.7/dist-packages/pycassa/system_manager.py", line 463, in _schema_update
schema_version = schema_func(*args)
File "/usr/local/lib/python2.7/dist-packages/pycassa/cassandra/Cassandra.py", line 1682, in system_drop_keyspace
return self.recv_system_drop_keyspace()
File "/usr/local/lib/python2.7/dist-packages/pycassa/cassandra/Cassandra.py", line 1693, in recv_system_drop_keyspace
(fname, mtype, rseqid) = self._iprot.readMessageBegin()
File "/usr/local/lib/python2.7/dist-packages/thrift/protocol/TBinaryProtocol.py", line 126, in readMessageBegin
sz = self.readI32()
File "/usr/local/lib/python2.7/dist-packages/thrift/protocol/TBinaryProtocol.py", line 206, in readI32
buff = self.trans.readAll(4)
File "/usr/local/lib/python2.7/dist-packages/thrift/transport/TTransport.py", line 58, in readAll
chunk = self.read(sz - have)
File "/usr/local/lib/python2.7/dist-packages/thrift/transport/TTransport.py", line 276, in read
self.readFrame()
File "/usr/local/lib/python2.7/dist-packages/thrift/transport/TTransport.py", line 280, in readFrame
buff = self.__trans.readAll(4)
File "/usr/local/lib/python2.7/dist-packages/thrift/transport/TTransport.py", line 58, in readAll
chunk = self.read(sz - have)
File "/usr/local/lib/python2.7/dist-packages/thrift/transport/TSocket.py", line 120, in read
message='TSocket read 0 bytes')
TTransportException: TSocket read 0 bytes

apiSrv failed to start

Please provide any help ion this