[Openstack] Command to find out list of compute nodes
Ahmed Al-Mehdi
ahmed at coraid.com
Fri Nov 16 21:43:43 UTC 2012
Hello,
I would like to add, it would have been really helpful if nova-compute put
some error log message in /var/log/nova/nova-compute.log or
/var/log/syslog. Is that an enhancement worth filing against nova-compute?
Regards,
Ahmed.
On 11/16/12 1:40 PM, "Ahmed Al-Mehdi" <ahmed at coraid.com> wrote:
>Hello,
>
>I resolved the issue, and I feel really silly about the root cause.
>Thanks to a suggestion from a member of the community, running the exact
>command from /etc/init/nova-compute.conf manually revealed the issue.
>
>root at sonoma:~# date; exec su -s /bin/sh -c "exec nova-compute
>--config-file=/etc/nova/nova.conf
>--config-file=/etc/nova/nova-compute.conf" nova
>Fri Nov 16 13:12:45 PST 2012
>Traceback (most recent call last):
> File "/usr/bin/nova-compute", line 43, in <module>
> flags.parse_args(sys.argv)
> File "/usr/lib/python2.7/dist-packages/nova/flags.py", line 43, in
>parse_args
> default_config_files=default_config_files)
> File "/usr/lib/python2.7/dist-packages/nova/openstack/common/cfg.py",
>line 1026, in __call__
> self._parse_config_files()
> File "/usr/lib/python2.7/dist-packages/nova/openstack/common/cfg.py",
>line 1496, in _parse_config_files
> raise ConfigFilesNotFoundError(not_read_ok)
>nova.openstack.common.cfg.ConfigFilesNotFoundError: Failed to read some
><=======
>config files: /etc/nova/nova.conf
>Connection to sonoma closed.
>Ahmeds-MacBook-Pro:~ ahmed$
>Ahmeds-MacBook-Pro:~ ahmed$
>Ahmeds-MacBook-Pro:~ ahmed$ ssh root at sonoma
>root at sonoma's password:
>Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-23-generic x86_64)
>root at sonoma:~#
>root at sonoma:~# ls -l /etc/nova/nova.conf
>-rw-r----- 1 root root 2208 Nov 14 10:53 nova.conf <======
>
>
>Much thanks to everyone for helping out. I am a step closer to getting my
>setup working.
>
>
>
>Regards,
>
>Ahmed.
>
>
>On 11/16/12 11:34 AM, "Vishvananda Ishaya" <vishvananda at gmail.com> wrote:
>
>>nova-compute is crashing for some reason. Try running
>>sudo nova-compute --config-file=/etc/nova/nova.conf
>>
>>that should start it in the foreground so you can see any error messages
>>that might pop up.
>>
>>Vish
>>
>>On Nov 16, 2012, at 9:28 AM, Ahmed Al-Mehdi <ahmed at coraid.com> wrote:
>>
>>> Hello,
>>>
>>> The two servers time clock is off by 2 seconds, so obvious not time
>>> synced. I will work on getting that fixed. The compute node is ahead
>>>by
>>> about 2 seconds. Would that cause such a problem?
>>>
>>> Regards,
>>> Ahmed.
>>>
>>>
>>> On 11/16/12 8:56 AM, "Narayanan, Krishnaprasad" <narayana at uni-mainz.de>
>>> wrote:
>>>
>>>> Hi Ahmed,
>>>>
>>>> If I understand the email correctly from Gong Yong Sheng, he is asking
>>>> you to check the status of ntp server on control and compute nodes.
>>>>
>>>> Thanks
>>>> Krishnaprasad Narayanan
>>>>
>>>> -----Original Message-----
>>>> From: gong yong sheng [mailto:gongysh at linux.vnet.ibm.com]
>>>> Sent: Freitag, 16. November 2012 13:56
>>>> To: Ahmed Al-Mehdi
>>>> Cc: Narayanan, Krishnaprasad; openstack at lists.launchpad.net
>>>> Subject: Re: [Openstack] Command to find out list of compute nodes
>>>>
>>>> Can u check if the time is synchronized? Times on compute node and
>>>> control node should be synchronized.
>>>> On 11/16/2012 12:28 PM, Ahmed Al-Mehdi wrote:
>>>>> Hi Narayanan,
>>>>>
>>>>> Awesome, thank you. There reason I was not seeing the "nova-compute"
>>>>> listed is because it did not launch on the compute node. I did a
>>>>> manual start of "nova-compute" on the compute node, and I do see it
>>>>> listed on the control-node but with "XXX" State.
>>>>>
>>>>> root at bodega:~/ahmed/new_guide# nova-manage service list
>>>>>
>>>>> Binary Host Zone Status State Updated_At
>>>>> nova-network bodega nova enabled :-) 2012-11-15
>>>>>23:49:28
>>>>> nova-scheduler bodega nova enabled :-) 2012-11-15
>>>>> 23:49:28
>>>>> nova-compute sonoma nova enabled XXX 2012-11-15
>>>>>23:46:46
>>>>> <= compute-node
>>>>>
>>>>> What I don't understand is even though nova-compute is listed on the
>>>>> control-node, the service is not running on the compute node. That
>>>>> does not seem right.
>>>>>
>>>>> root at sonoma:~# service nova-compute status nova-compute stop/waiting
>>>>> root at sonoma:~# date; service nova-compute start Thu Nov 15 15:48:08
>>>>> PST 2012 nova-compute start/running, process 2785 root at sonoma:~#
>>>>> service nova-compute status nova-compute stop/waiting root at sonoma:~#
>>>>> ps aux | grep nova
>>>>> root 2810 0.0 0.0 9384 924 pts/0 S+ 15:49 0:00 grep
>>>>> --color=auto nova
>>>>> root at sonoma:~# service nova-compute status nova-compute stop/waiting
>>>>> root at sonoma:~#
>>>>>
>>>>> There are no log entries in the log files on compute-node or
>>>>> control-node.
>>>>> Any ideas please?
>>>>>
>>>>>
>>>>> Thank you,
>>>>> Ahmed.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 11/15/12 3:29 PM, "Narayanan, Krishnaprasad"
>>>>> <narayana at uni-mainz.de>
>>>>> wrote:
>>>>>
>>>>>> Hi Ahmed,
>>>>>>
>>>>>> You can use the command "nova-manage service list" from the command
>>>>>> line of control node to get the list of compute nodes along with the
>>>>>> nova-compute service status.
>>>>>>
>>>>>> Thanks
>>>>>> Krishnaprasad Narayanan
>>>>>> ________________________________
>>>>>> From: openstack-bounces+narayana=uni-mainz.de at lists.launchpad.net
>>>>>> [openstack-bounces+narayana=uni-mainz.de at lists.launchpad.net] on
>>>>>> behalf of Ahmed Al-Mehdi [ahmed at coraid.com]
>>>>>> Sent: Friday, November 16, 2012 12:19 AM
>>>>>> To: openstack at lists.launchpad.net
>>>>>> Subject: [Openstack] Command to find out list of compute nodes
>>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> Is there a command I can issue on the control node to find out the
>>>>>> list of compute node(s) (nodes running nova-compute), and
>>>>>>potentially
>>>>>> any additional info about the compute node(s)?
>>>>>>
>>>>>> Thank you,
>>>>>> Ahmed.
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Mailing list: https://launchpad.net/~openstack
>>>>> Post to : openstack at lists.launchpad.net
>>>>> Unsubscribe : https://launchpad.net/~openstack
>>>>> More help : https://help.launchpad.net/ListHelp
>>>>>
>>>>
>>>
>>>
>>> _______________________________________________
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>>
>
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