[Users] hosted engine help

Jiri Moskovcak jmoskovc at redhat.com
Tue Mar 25 17:34:16 UTC 2014 

On 03/13/2014 05:25 PM, Jason Brooks wrote:
>
>
> ----- Original Message -----
>> From: "Greg Padgett" <gpadgett at redhat.com>
>> To: "Jason Brooks" <jbrooks at redhat.com>
>> Cc: "Sandro Bonazzola" <sbonazzo at redhat.com>, users at ovirt.org, "Martin Sivak" <msivak at redhat.com>
>> Sent: Tuesday, March 11, 2014 7:52:42 AM
>> Subject: Re: [Users] hosted engine help
>>
>> On 03/11/2014 04:09 PM, Sandro Bonazzola wrote:
>>> Il 07/03/2014 01:10, Jason Brooks ha scritto:
>>>> Hey everyone, I've been testing out oVirt 3.4 w/ hosted engine, and
>>>> while I've managed to bring the engine up, I've only been able to do it
>>>> manually, using "hosted-engine --vm-start".
>>>>
>>>> The ovirt-ha-agent service fails reliably for me, erroring out with
>>>> "RequestError: Request failed: success."
>>>>
>>>> I've pasted error passages from the ha agent and vdsm logs below.
>>>>
>>>> Any pointers?
>>>>
>>>> Regards, Jason
>>>>
>>>> ***
>>>>
>>>> ovirt-ha-agent.log
>>>>
>>>> MainThread::CRITICAL::2014-03-06
>>>> 18:48:30,622::agent::103::ovirt_hosted_engine_ha.agent.agent.Agent::(run)
>>>> Could not start ha-agent
>>>> Traceback (most recent call last):
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py",
>>>> line 97, in run
>>>>       self._run_agent()
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py",
>>>> line 154, in _run_agent
>>>>
>>>> hosted_engine.HostedEngine(self.shutdown_requested).start_monitoring()
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
>>>> line 303, in start_monitoring
>>>>       for old_state, state, delay in self.fsm:
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/fsm/machine.py",
>>>> line 125, in next
>>>>       new_data = self.refresh(self._state.data)
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/state_machine.py",
>>>> line 77, in refresh
>>>>       stats.update(self.hosted_engine.collect_stats())
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
>>>> line 623, in collect_stats
>>>>       constants.SERVICE_TYPE)
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>> line 171, in get_stats_from_storage
>>>>       result = self._checked_communicate(request)
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>> line 198, in _checked_communicate
>>>>       raise RequestError("Request failed: {0}".format(msg))
>>>> RequestError: Request failed: success
>>>>
>>>>
>>>> vdsm.log
>>>>
>>>> Thread-29::ERROR::2014-03-06 18:48:11,101::API::1607::vds::(_getHaInfo)
>>>> failed to retrieve Hosted Engine HA info
>>>> Traceback (most recent call last):
>>>>     File "/usr/share/vdsm/API.py", line 1598, in _getHaInfo
>>>>       stats = instance.get_all_stats()
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
>>>> line 86, in get_all_stats
>>>>       constants.SERVICE_TYPE)
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>> line 171, in get_stats_from_storage
>>>>       result = self._checked_communicate(request)
>>>>     File
>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>> line 198, in _checked_communicate
>>>>       raise RequestError("Request failed: {0}".format(msg))
>>>> RequestError: Request failed: success
>>>
>>>
>>> Greg, Martin, "Request failed: success" ?
>>
>> Hi Jason,
>>
>> I talked to Martin about this and opened a bug [1]/submitted a patch [2].
>>    Based on your mail, I'm not sure if you experienced a race condition or
>> some other issue.  This patch should help the former case, but if you're
>> still experiencing problems then we would need to investigate further.
>
> I made these changes to my install and now I get a different error:
>
> MainThread::CRITICAL::2014-03-13 12:05:47,749::agent::103::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Could not start ha-agent
> Traceback (most recent call last):
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 97, in run
>      self._run_agent()
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 154, in _run_agent
>      hosted_engine.HostedEngine(self.shutdown_requested).start_monitoring()
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 303, in start_monitoring
>      for old_state, state, delay in self.fsm:
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/fsm/machine.py", line 125, in next
>      new_data = self.refresh(self._state.data)
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/state_machine.py", line 77, in refresh
>      stats.update(self.hosted_engine.collect_stats())
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 623, in collect_stats
>      constants.SERVICE_TYPE)
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 171, in get_stats_from_storage
>      result = self._checked_communicate(request)
>    File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 191, in _checked_communicate
>      return parts[1]
> IndexError: list index out of range
>
> I'm attaching my vdsm.log, agent.log and broker.log.
>
> Jason

Hi Jason,
this bug is already fixed in the latest builds.

I was able to successfully install the hosted engine with the following 
rpms installed.

1. Install and enable the preview repo as described here: 
http://www.ovirt.org/OVirt_3.4_Test_Day

and then install the following packages:

http://jenkins.ovirt.org/view/Packaging/job/ovirt-hosted-engine-ha_create_rpms/label=fedora19/lastSuccessfulBuild/artifact/exported-artifacts/ovirt-hosted-engine-ha-1.2.0-0.0.master.20140324152134.20140324.git24efa6a.fc19.noarch.rpm

http://jenkins.ovirt.org/view/Packaging/job/ovirt-hosted-engine-setup_create_rpms/label=fedora19/lastSuccessfulBuild/artifact/exported-artifacts/ovirt-hosted-engine-setup-1.2.0-0.0.master.20140324112909.gitc0e9c96.fc19.noarch.rpm

--Jirka


>
>
>>
>> Thanks,
>> Greg
>>
>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1075126
>> [2] http://gerrit.ovirt.org/#/c/25621/
>>
>>>>
>>>>
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>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>
>>>
>>
>>
>>
>>
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