Re: [openstack-dev] [Ceilometer][Gnocchi] inconsistent instanceattributes cause infinite update

2015-12-21 Thread gord chung 
shall we try to synchronise the two datapoints more than? i think that'd 
be the better route since pollster and notification values are 
attempting to meter the same thing.


On 21/12/2015 8:33 AM, Luo Gangyi wrote:

gord, I have looked your link, seems related.
But still, image_ref is a problem.


--
gord


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Re: [openstack-dev] [Ceilometer][Gnocchi] inconsistent instanceattributes cause infinite update

2015-12-21 Thread Luo Gangyi 
@gord, I have looked your link, seems related. 
  
 But still, image_ref is a problem.
  
  --
 Luo Gangyi   luogan...@cmss.chinamobile.com



  
  

 

 -- Original --
  From:  "gord chung";<g...@live.ca>;
 Date:  Mon, Dec 21, 2015 09:12 PM
 To:  "openstack-dev"<openstack-dev@lists.openstack.org>; 
 
 Subject:  Re: [openstack-dev] [Ceilometer][Gnocchi] inconsistent 
instanceattributes cause infinite update

 

we actually looked at this problem here: 
https://review.openstack.org/#/c/235702/

i think we should add support of new attribute instead.

 On 20/12/2015 10:52 AM, Luo Gangyi wrote:

  Hi devs,
  
 I found a problem which may cause infinite update of instance's attributes in 
gnocchi.
  
 Let's see the resource definition of instance.
  
   - resource_type: instance
metrics:
  - 'instance'
  - 'memory'
  - 'memory.usage'
  - 'memory.resident'
  - 'vcpus'
  - 'cpu'
  - 'cpu_util'
  - 'disk.root.size'
 ...
 attributes:
  host: resource_metadata.host
  image_ref: resource_metadata.image_ref_url
 ...

 Here is the problem, although they have same  attributes, they are *not* same.
  
 Some of them came from nova's notifications and the others are came from 
ceilometer-compute-agent.
  
 1) Those came from notifications, their attributes looks like
  
 image_ref :http://10.133.12.125:9292/images/  
 host: compute.lgy-openstack-kilo.novalocal 
  
 2) Those came from ceilometer-compute-agent, 
 image_ref : 
http://10.133.12.125:8774/4994e42421a04beda56fff7d817e810e/images/8d6a9cd9-48ae-4a41-bd13-262a46c93d72
 
 host:ea8f8e465d9caff06e80a0fda6f30d02725e0b55dc0fd940954cb55c
  
 Such difference will cause alternately and infinitely update of a instance's 
attributes if we enable nova audit.
  
 So I suggest we seperate these meters which came from notifications to another 
resource type like "instance_from_notification".
  
 Any other idea?
 
 
  --
 Luo Gangyi   luogan...@chinamobile.com



  

  
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