pod contrail-analytics-* restarting

[heisenbergye]

pod contrail-analytics-jlh7l restarted so many times. It seems an error "Failed to import package "sandesh"" in container contrail-analytics-alarm-gen, details:

[root@dce07 ~]# kubectl logs -f contrail-analytics-jlh7l -n kube-system contrail-analytics-alarm-gen
12/13/2018 01:30:41 PM [contrail-alarm-gen] [INFO]: SANDESH: CONNECT TO COLLECTOR: True
12/13/2018 01:30:42 PM [contrail-alarm-gen] [ERROR]: Failed to import package "sandesh"
12/13/2018 01:30:42 PM [contrail-alarm-gen] [INFO]: SANDESH: INTROSPECT IS ON: 0.0.0.0:5995
12/13/2018 01:30:42 PM [contrail-alarm-gen] [ERROR]: Failed to import package "sandesh"
12/13/2018 01:30:42 PM [contrail-alarm-gen] [INFO]: SANDESH: Logging: LEVEL: [SYS_INFO] -> [SYS_NOTICE]
^C
[root@dce07 ~]# ss -ltnp | grep 5995
LISTEN     0      128          *:5995                     *:*                   users:(("python",pid=9360,fd=6))