Open Stack

Sam,
I afraid, maybe, there is no others use nova cells that i cannot got reply anymore. Could you help me?

Waiting your reply.




------------------
 Best Regards
  
 ZhangJialong




 
 
 
------------------ Original ------------------
From:  "张家龙"<zhangjl at awcloud.com>;
Date:  Mon, Feb 17, 2014 11:29 AM
To:  "Sam Morrison"<sorrison at gmail.com>; 
Cc:  "openstack"<openstack at lists.openstack.org>; 
Subject:  Re: [Openstack] Running multiple nova-cells

 
Make sure 2 cells are communicating with each other? Your means the child cells should konw each other and connect to others? Does any specail key words?

And there are errors in my cells: when i execute nova host-list,something error occured
DEBUG (shell:740) The server has either erred or is incapable of performing the requested operation. (HTTP 500) (Request-ID: req-de2a288e-47a0-4675-984e-4dc98c356ca4)
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/novaclient/shell.py", line 737, in main
    OpenStackComputeShell().main(map(strutils.safe_decode, sys.argv[1:]))
  File "/usr/lib/python2.6/site-packages/novaclient/shell.py", line 673, in main
    args.func(self.cs, args)
  File "/usr/lib/python2.6/site-packages/novaclient/v1_1/shell.py", line 2775, in do_host_list
    result = cs.hosts.list(args.zone)
  File "/usr/lib/python2.6/site-packages/novaclient/v1_1/hosts.py", line 68, in list
    return self._list(url, "hosts")
  File "/usr/lib/python2.6/site-packages/novaclient/base.py", line 61, in _list
    _resp, body = self.api.client.get(url)
  File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 229, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 213, in _cs_request
    **kwargs)
  File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 195, in _time_request
    resp, body = self.request(url, method, **kwargs)
  File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 189, in request
    raise exceptions.from_response(resp, body, url, method)
ClientException: The server has either erred or is incapable of performing the requested operation. (HTTP 500) (Request-ID: req-de2a288e-47a0-4675-984e-4dc98c356ca4)
ERROR: The server has either erred or is incapable of performing the requested operation. (HTTP 500) (Request-ID: req-de2a288e-47a0-4675-984e-4dc98c356ca4)

And the detailed error log is here:http://pastebin.com/ium8xHjX






------------------
 Best Regards
  
 ZhangJialong




 
 
 
------------------ Original ------------------
From:  "Sam Morrison"<sorrison at gmail.com>;
Date:  Mon, Feb 17, 2014 08:49 AM
To:  "张家龙"<zhangjl at awcloud.com>; 

Subject:  Re: [Openstack] Running multiple nova-cells

 
Hi,

Good to hear other people using cells, do you have specific errors? First I’d make sure your 2 cells are communicating with each other, you can check logs for that. 
If you’re having issues the best place to ask is on the mailing list that way lots of people can reply.


Cheers,
Sam


Hi,
    It`s a good news to konw your success that large deployment with nova cells.Could you shared me your experience how to deploy with nova cells? With the documents 
https://wiki.openstack.org/wiki/Blueprint-nova-compute-cells, 
I deployed a nova cluster with 2 cells,while failed to create vm instance. It`s my pleasure that you can give me some advise if possible.

Thanks!





------------------
 Best Regards
  
 ZhangJialong



 
 
 
------------------ Original ------------------
From:  "Sam Morrison"<sorrison at gmail.com>;
Date:  Mon, Jul 15, 2013 02:52 PM
To:  "openstack"<openstack at lists.launchpad.net>; 

Subject:  [Openstack] Running multiple nova-cells

 
Hi,

We have a reasonably large deployment with nova cells and we are having issues consuming messages fast enough at the top level due to all the instance updates etc.

We've done some tuning to some of the periodic tasks but users can trigger hundreds of messages to be sent upwards.
It looks like a bug where 1 message to be sent upwards somehow turns into about 50. We're debugging this at the moment.


Bu what I'm also wondering is if it's possible to run multiple nova-cell processes within a cell?
I see there is a blueprint [1]  which makes me think it's not possible yet?


We get spikes of 100/200 messages a second for a couple minutes and it takes a while for our nova-cell service to consume all of these.


Cheers,
Sam




 [1] https://blueprints.launchpad.net/nova/+spec/multiple-nova-cell
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