[AMBARI-24196] Mpack Instance Manager Produces Bad JSON and Doesn't List Versions

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: ambari-server
• Labels: pull-request-available
• Assignee: Scott Duan
• Reporter: Scott Duan
• Created: 26/Jun/18 20:39
• Updated: 29/Jun/18 19:15
• Resolved: 29/Jun/18 19:15

Description

The Mpack Instance manage is producing JSON output which cannot be parsed by non-Python parsers:

• Includes unicode markers for strings (like u'ZOOKEEPER')
• Uses non-standard single quotes

  [root@c7403 mpack-instance-manager]$ python mpack-instance-manager.py list-instances
  {'mpacks': \{'hdpcore': {'mpack-instances': {'HDPCORE': {'name': 'HDPCORE', 'subgroups': {'default': {'modules': {'zookeeper': {'category': u'SERVER', 'name': 'zookeeper', 'components': {'zookeeper_server': {'component-instances': {'default': {'path': '/usr/hwx/mpacks/hdpcore/1.0.0-b450/zookeeper_server', 'name': 'default'}}}}}, 'zookeeper_clients': \{'category': u'CLIENT', 'name': 'zookeeper_clients', 'components': {'zookeeper_client': {'component-instances': {'default': {'path': '/usr/hwx/mpacks/hdpcore/1.0.0-b450/zookeeper_client', 'name': 'default'}}}}}}}}}}}}}
  

It also fails to provide information about the mpack version and component version. The output from the command list-instances needs to provide both the mpack version and the module component version. Otherwise, this data cannot be reported back.

If the list-instances is not the correct command for this, then that's fine, but we still need a command we can invoke to get this information back in a structure manner.

Issue Links

• links to: GitHub Pull Request #1637