Can not create alarm successfully according to examples in community

[Zhang Yun]

Steps:
1. Install ceilometer by install scripts successfully.
2. Create an alarm according to examples in community - http://docs.openstack.org/developer/ceilometer/webapi/v2.html

POST http://10.1.0.182:8777/v2/alarms
body:
{
    "alarm_actions": [
        "http://site:8000/alarm"
    ],
    "alarm_id": null,
    "combination_rule": null,
    "description": "An alarm",
    "enabled": true,
    "insufficient_data_actions": [
        "http://site:8000/nodata"
    ],
    "name": "SwiftObjectAlarm11",
    "ok_actions": [
        "http://site:8000/ok"
    ],
    "project_id": "c96c887c216949acbdfbd8b494863567",
    "repeat_actions": false,
    "state": "ok",
    "state_timestamp": "2013-10-08T12:32:07.253899",
    "threshold_rule": null,
    "timestamp": "2013-10-08T12:32:07.253890",
    "type": "threshold",
    "user_id": "c96c887c216949acbdfbd8b494863567"
}

The return result is 500 Internal Server Error:
{
    "error_message": {
        "debuginfo": null,
        "faultcode": "Server",
        "faultstring": "CL-EFFDED5 Alarm with that name exists"
    }
}

But when running "ceilometer alarm-list", there is no same alarm name exists.

[root@osee15-control01 ˜]# ceilometer alarm-list
+---------------------+-----------------------------------------------------------------+-------------------+---------+------------+--------------------------------------+----------------------------------+----------------------------------+
| Name | Description | State | Enabled | Continuous | Alarm ID | User ID | Project ID |
+---------------------+-----------------------------------------------------------------+-------------------+---------+------------+--------------------------------------+----------------------------------+----------------------------------+
| zyalarm-imagesize | Alarm when image.size is eq a avg of 1.0 over 60 seconds | insufficient data | True | False | ec5dcce2-5278-4180-8918-fd2718268023 | aa5b233474d14b6fb93e99161a637599 | f5f2932bab5d4930998e7f80e8470d8f |
| zyalarm-imagesize1 | Alarm when image.size is eq a avg of 9761280.0 over 600 seconds | insufficient data | True | False | ee588dc3-5b3d-4327-8c0f-04b096e709eb | aa5b233474d14b6fb93e99161a637599 | f5f2932bab5d4930998e7f80e8470d8f |
| zyalarm-imagesize2 | Alarm when image.size is eq a avg of 9761280.0 over 1 seconds | insufficient data | True | False | aef96037-1474-4010-b9ee-74c298c88e72 | aa5b233474d14b6fb93e99161a637599 | f5f2932bab5d4930998e7f80e8470d8f |
| zyalarm-imagesize22 | Alarm when image.size is eq a avg of 9761280.0 over 3 seconds | insufficient data | True | False | 83fb9b4b-0e1c-40ee-bf21-d2164d864cab | aa5b233474d14b6fb93e99161a637599 | f5f2932bab5d4930998e7f80e8470d8f |
+---------------------+-----------------------------------------------------------------+-------------------+---------+------------+--------------------------------------+----------------------------------+----------------------------------+
[root@osee15-control01 ˜]#

And from the /var/log/ceilometer/api.log, it prompts below error:

2013-10-10 08:09:35.612 23872 ERROR wsme.api [-] Server-side error: "'NoneType' object has no attribute 'as_dict'". Detail:
Traceback (most recent call last):

  File "/usr/lib/python2.6/site-packages/wsmeext/pecan.py", line 72, in callfunction
    result = f(self, *args, **kwargs)

  File "/usr/lib/python2.6/site-packages/ceilometer/api/controllers/v2.py", line 1393, in post
    change = data.as_dict(storage.models.Alarm)

  File "/usr/lib/python2.6/site-packages/ceilometer/api/controllers/v2.py", line 1156, in as_dict
    d['rule'] = getattr(self, "%s_rule" % self.type).as_dict()

AttributeError: 'NoneType' object has no attribute 'as_dict'

Expected results: Alarm should create successfully following example in community.

[Vladimir Vechkanov (vvechkanov)]

I check alarm creating by your (and exmple) command and get return error message:
{
    "error_message": {
     "debuginfo": null,
     "faultcode": "Server",
      "faultstring": "'NoneType' object has no attribute 'as_dict'"
    }
}

To fix this error you should change body of your request.
Instead line:
   threshold_rule": null,
You should use lines, for example:
    "threshold_rule": {
        "threshold": "50",
        "meter_name": "image.update",
    },
So your new body should be like this:
{
    "alarm_actions": [
        "http://site:8000/alarm"
    ],
    "alarm_id": null,
    "combination_rule": null,
    "description": "An alarm",
    "enabled": true,
    "insufficient_data_actions": [
        "http://site:8000/nodata"
    ],
    "name": "SwiftObjectAlarm",
    "ok_actions": [
        "http://site:8000/ok"
    ],
    "project_id": "c96c887c216949acbdfbd8b494863567",
    "repeat_actions": false,
    "state": "ok",
    "state_timestamp": "2013-10-08T12:32:07.253899",
    "threshold_rule": {
        "threshold": "50",
        "meter_name": "image.update"
    },
    "timestamp": "2013-10-30T11:03:53.483447",
    "type": "threshold",
    "user_id": "c96c887c216949acbdfbd8b494863567"
}

An appropriate changes to the examples will be added.

I think that this changes will also fix error "CL-EFFDED5 Alarm with that name exists". But if it will show again, please comment here or let us know in any other way.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/68071

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/havana
Review: https://review.openstack.org/68120

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/68071
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=7b0f1c87795fecedce7e1d4d701fafcd6ba90581
Submitter: Jenkins
Branch: master

commit 7b0f1c87795fecedce7e1d4d701fafcd6ba90581
Author: Ildiko Vancsa <email address hidden>
Date: Tue Jan 21 11:21:06 2014 +0100

    Fix the Alarm documentation of Web API V2

    Correct the Alarm example on the API documentation to contain a
    valid Alarm sample and complete the Note section with information
    about the connection between the type and rules fields of the
    Alarm.

    Fixes bug #1245362

    Change-Id: Id7209d3f7a7ab29a50bdb1dfbe90937b1c7c6c8d

[Zhang Yun (zhangyun)]

I will be out of the office starting 01/28/2014 and will not return until
02/10/2014.

I will have limited internet access during 1/28 to 2/2, any urgent thing,
please call me 13811788324.

[Eoghan Glynn (eglynn)]

Fix committed to stable/havana:

  https://github.com/openstack/ceilometer/commit/92e498561b3cbebd076e758d35ea51193168194c