Created attachment 1427023 [details]
logs and configuration files

Description of problem:
Import without specified short Cluster Name failed with error:
```
Failure in Job 53bb0810-baa4-4e42-a882-df4c4cb3703a Flow tendrl.flows.ImportCluster with error:Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/tendrl/commons/jobs/__init__.py", line 213, in process_job#012    the_flow.run()#012  File "/usr/lib/python2.7/site-packages/tendrl/commons/flows/import_cluster/__init__.py", line 123, in run#012    raise ex#012TypeError: must be string, not None
```

Version-Release number of selected component (if applicable):
glusterfs-3.12.2-8.el7rhgs.x86_64
tendrl-ansible-1.6.3-2.el7rhgs.noarch
tendrl-api-1.6.3-1.el7rhgs.noarch
tendrl-api-httpd-1.6.3-1.el7rhgs.noarch
tendrl-commons-1.6.3-2.el7rhgs.noarch
tendrl-grafana-plugins-1.6.3-1.el7rhgs.noarch
tendrl-grafana-selinux-1.5.4-2.el7rhgs.noarch
tendrl-monitoring-integration-1.6.3-1.el7rhgs.noarch
tendrl-node-agent-1.6.3-2.el7rhgs.noarch
tendrl-notifier-1.6.3-2.el7rhgs.noarch
tendrl-selinux-1.5.4-2.el7rhgs.noarch
tendrl-ui-1.6.3-1.el7rhgs.noarch

How reproducible:
10%

Steps to Reproduce:
1. Install tendrl.
2. Import cluster, don't set Cluster Name in import wizard.
3. Check job progress.

Actual results:
Import failed with python TypeError.

Expected results:
Import should pass.

Additional info:
In attachment are logs and config files. In `fbalak-usm1-gl1.usmqe.lab.eng.brq.redhat.com/var/log/messages` directory is the error logged with additional details.