Rally task [NovaServers.list_servers] failed with network problems

[Adrian Gomez]

Hello to everyone,

We try to deploy the [NovaServers.list_servers] task with the next config:

{
  "NovaServers.list_servers": [
    {
      "runner": {
        "type": "constant",
        "times": 1,
        "concurrency": 1
      },
      "hooks": [],
      "args": {
        "detailed": true
      },
      "sla": {},
      "context": {
        "servers": {
          "flavor": {
            "name": "m1.small"
          },
          "image": {
            "name": "RHEL7.2"
          },
      }
    }
  ]
}

With this configuration of task the error is "Unexpected error: Multiple possible networks found, use a Network ID to be more specific. (HTTP 409) (Request-ID: req-d6bb23b8-d874-4be7-8433-cfa28cf8c868) "

We prove too the next task config:

{
  "NovaServers.list_servers": [
    {
      "runner": {
        "type": "constant",
        "times": 1,
        "concurrency": 1
      },
      "hooks": [],
      "args": {
        "detailed": true
      },
      "sla": {},
      "context": {
        "servers": {
          "flavor": {
            "name": "m1.small"
          },
          "image": {
            "name": "RHEL7.2"
          },
          "nics": [
            {
              "net-id": "f75e7970-6469-4784-b0a1-a9ed80172079"
            }
          ]
        }
      }
    }
  ]
}

In this case, the error is "Unexpected error: nics must be a list "

Someone could help me with this task? Maybe we use an incorrect configuration in this task?

I have rally version 0.8.2~dev71

Thanks for your help in advance.

[chenhb (chen-haibing1)]

looks this config is right.

[Andriy Kurilin (andreykurilin)]

yes, the config looks good to me. Also, I did not find any places in code, where nics can be transformed.

Can you modify the code, so we can add more debug messages? If yes, I'll share more details.

[Adrian Gomez (gomadn)]

Hello,

Yes, I will can try to modify the code to add more debug messages.
Could you share with me what do I need change in plugin code to enable debug mode?

Thanks in advance.

[narasimha18sv (narasimha18sv)]

As per the I think you are only trying to check nova list command. when we are trying list_servers context with create servers is not required. if you want to create and list the servers then
"NovaServers.list_servers" should be "NovaServers.boot_and_list_servers"

As per the code in rally list_servers doesn't take any arguments like image, flavor or net id

https://github.com/openstack/rally/blob/master/rally/plugins/openstack/scenarios/nova/servers.py#L78

[zhangzhihui (zhangzhang)]

“nics” have two format, one is
"nics": [
             {
               "net-id": "f75e7970-6469-4784-b0a1-a9ed80172079"
             }
           ]
but our rally codes seems to have a bug, i will try to fix it.
the other is
"nics": [
               "f75e7970-6469-4784-b0a1-a9ed80172079"
            ]
about this part of the code is ok。you can use this format.

[Andriy Kurilin (andreykurilin)]

a proposal for novaclient project - https://review.openstack.org/475816

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/475766
Committed: https://git.openstack.org/cgit/openstack/rally/commit/?id=eee85042c395f2c988c25e56bc50874540a674c0
Submitter: Jenkins
Branch: master

commit eee85042c395f2c988c25e56bc50874540a674c0
Author: zhangzhang <email address hidden>
Date: Tue Jun 20 16:03:19 2017 -0400

    fix Rally task [NovaServers.list_servers] failed with network problems

    when we get 'nics' information from rally task config
    'contexts', the type of self.config["nics"] is 'tuple', but we need it is 'list'
    type.

    Change-Id: If293700a5c0a2f30a23b1fcf808adb6e467c76c6
    Closes-Bug: #1695245