[Sahara] Job executions don't show Job and Cluster for pending state

[Andrew Lazarev]

Steps to repro:
1. Create job execution
2. See job execution page

Job and Cluster columns contain dashes.
Logs:
The attribute job_name doesn't exist on JobExecution {u'output_id': u'91e796c9-1896-49dd-a807-5a34b0f733fb', u'info': {u'status': u'PENDING'}, u'job_id': u'02e0f0c1-6698-47cc-b0b9-439953f9b3a2', u'tenant_id': u'8e44eb2ce32b4c72b82070abbcd61ba8', u'start_time': None, u'return_code': None, u'updated_at': None, u'oozie_job_id': None, u'input_id': u'e8865f9a-f666-4df4-9612-8571d98d8ec6', u'end_time': None, u'progress': None, u'id': u'a106f3bb-b2f2-4187-9702-0de5d2a0f25d', u'cluster_id': u'04ad1b90-d04b-4b96-93f9-bd24c03f8693', u'job_configs': {u'configs': {}, u'args': [], u'params': {}}, u'created_at': u'2014-11-11 01:02:11.219366'}.
The attribute cluster_name doesn't exist on JobExecution {u'output_id': u'91e796c9-1896-49dd-a807-5a34b0f733fb', u'info': {u'status': u'PENDING'}, u'job_id': u'02e0f0c1-6698-47cc-b0b9-439953f9b3a2', u'tenant_id': u'8e44eb2ce32b4c72b82070abbcd61ba8', u'start_time': None, u'return_code': None, u'updated_at': None, u'oozie_job_id': None, u'input_id': u'e8865f9a-f666-4df4-9612-8571d98d8ec6', u'end_time': None, u'progress': None, u'id': u'a106f3bb-b2f2-4187-9702-0de5d2a0f25d', u'cluster_id': u'04ad1b90-d04b-4b96-93f9-bd24c03f8693', u'job_configs': {u'configs': {}, u'args': [], u'params': {}}, u'created_at': u'2014-11-11 01:02:11.219366'}.

3. Wait while job moved to SUCCEEDED state

Job and Cluster contain correct values.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/136871

[OpenStack Infra (hudson-openstack)]

Change abandoned by Andrew Lazarev (<email address hidden>) on branch: master
Review: https://review.openstack.org/136871
Reason: Addressed by https://review.openstack.org/#/c/125927

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/125927
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=4f947f8cb21e68f3dffbeac52ad9b1e938946060
Submitter: Jenkins
Branch: master

commit 4f947f8cb21e68f3dffbeac52ad9b1e938946060
Author: Nikita Konovalov <email address hidden>
Date: Fri Oct 3 14:48:27 2014 +0400

    [Data_processing] fix job_executions table

    The table does not crash anymore after the cluster is deleted.
    Both the cluster object and the job are queried before extending a job execution.
    When the cluster or the job are deleted 'Not available' is assigned as the name.

    Closes-Bug: #1376738
    Closes-Bug: #1391356
    Closes-Bug: #1391507
    Change-Id: Iee60572f3a6e02447a6cd8508735bbb91ec020e9