From: "René Koch" <[email protected]>
To: "Martin Sivak" <[email protected]>
Cc: [email protected]
Sent: Tuesday, April 22, 2014 1:46:38 PM
Subject: Re: [ovirt-users] hosted engine health check issues
Hi,
I rebooted one of my ovirt hosts today and the result is now that I
can't start hosted-engine anymore.
ovirt-ha-agent isn't running because the lockspace file is missing
(sanlock complains about it).
So I tried to start hosted-engine with --vm-start and I get the
following errors:
==> /var/log/sanlock.log <==
2014-04-22 12:38:17+0200 654 [3093]: r2 cmd_acquire 2,9,5733 invalid
lockspace found -1 failed 0 name 2851af27-8744-445d-9fb1-a0d083c8dc82
==> /var/log/messages <==
Apr 22 12:38:17 ovirt-host02 sanlock[3079]: 2014-04-22 12:38:17+0200 654
[3093]: r2 cmd_acquire 2,9,5733 invalid lockspace found -1 failed 0 name
2851af27-8744-445d-9fb1-a0d083c8dc82
Apr 22 12:38:17 ovirt-host02 kernel: ovirtmgmt: port 2(vnet0) entering
disabled state
Apr 22 12:38:17 ovirt-host02 kernel: device vnet0 left promiscuous mode
Apr 22 12:38:17 ovirt-host02 kernel: ovirtmgmt: port 2(vnet0) entering
disabled state
==> /var/log/vdsm/vdsm.log <==
Thread-21::DEBUG::2014-04-22
12:38:17,563::libvirtconnection::124::root::(wrapper) Unknown
libvirterror: ecode: 38 edom: 42 level: 2 message: Failed to acquire
lock: No space left on device
Thread-21::DEBUG::2014-04-22
12:38:17,563::vm::2263::vm.Vm::(_startUnderlyingVm)
vmId=`f26dd37e-13b5-430c-b2f2-ecd098b82a91`::_ongoingCreations released
Thread-21::ERROR::2014-04-22
12:38:17,564::vm::2289::vm.Vm::(_startUnderlyingVm)
vmId=`f26dd37e-13b5-430c-b2f2-ecd098b82a91`::The vm start process failed
Traceback (most recent call last):
File "/usr/share/vdsm/vm.py", line 2249, in _startUnderlyingVm
self._run()
File "/usr/share/vdsm/vm.py", line 3170, in _run
self._connection.createXML(domxml, flags),
File "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py",
line 92, in wrapper
ret = f(*args, **kwargs)
File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2665, in
createXML
if ret is None:raise libvirtError('virDomainCreateXML() failed',
conn=self)
libvirtError: Failed to acquire lock: No space left on device
==> /var/log/messages <==
Apr 22 12:38:17 ovirt-host02 vdsm vm.Vm ERROR
vmId=`f26dd37e-13b5-430c-b2f2-ecd098b82a91`::The vm start process
failed#012Traceback (most recent call last):#012 File
"/usr/share/vdsm/vm.py", line 2249, in _startUnderlyingVm#012
self._run()#012 File "/usr/share/vdsm/vm.py", line 3170, in _run#012
self._connection.createXML(domxml, flags),#012 File
"/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py", line 92,
in wrapper#012 ret = f(*args, **kwargs)#012 File
"/usr/lib64/python2.6/site-packages/libvirt.py", line 2665, in
createXML#012 if ret is None:raise libvirtError('virDomainCreateXML()
failed', conn=self)#012libvirtError: Failed to acquire lock: No space
left on device
==> /var/log/vdsm/vdsm.log <==
Thread-21::DEBUG::2014-04-22
12:38:17,569::vm::2731::vm.Vm::(setDownStatus)
vmId=`f26dd37e-13b5-430c-b2f2-ecd098b82a91`::Changed state to Down:
Failed to acquire lock: No space left on device
No space left on device is nonsense as there is enough space (I had this
issue last time as well where I had to patch machine.py, but this file
is now Python 2.6.6 compatible.
Any idea what prevents hosted-engine from starting?
ovirt-ha-broker, vdsmd and sanlock are running btw.
Btw, I can see in log that json rpc server module is missing - which
package is required for CentOS 6.5?
Apr 22 12:37:14 ovirt-host02 vdsm vds WARNING Unable to load the json
rpc server module. Please make sure it is installed.
Thanks,
René
On 04/17/2014 10:02 AM, Martin Sivak wrote:
Hi,
How can I disable notifications?
The notification is configured in /etc/ovirt-hosted-engine-ha/broker.conf
section notification.
The email is sent when the key state_transition exists and the string
OldState-NewState contains the (case insensitive) regexp from the value.
Is it intended to send out these messages and detect that ovirt engine
is down (which is false anyway), but not to restart the vm?
Forget about emails for now and check the
/var/log/ovirt-hosted-engine-ha/agent.log and broker.log (and attach them
as well btw).
oVirt hosts think that hosted engine is down because it seems that
hosts
can't write to hosted-engine.lockspace due to glusterfs issues (or at
least I think so).
The hosts think so or can't really write there? The lockspace is managed
by
sanlock and our HA daemons do not touch it at all. We only ask sanlock to
get make sure we have unique server id.
Is is possible or planned to make the whole ha feature optional?
Well the system won't perform any automatic actions if you put the hosted
engine to global maintenance and only start/stop/migrate the VM manually.
I would discourage you from stopping agent/broker, because the engine
itself has some logic based on the reporting.
Regards
--
Martin Sivák
[email protected]
Red Hat Czech
RHEV-M SLA / Brno, CZ
----- Original Message -----
On 04/15/2014 04:53 PM, Jiri Moskovcak wrote:
On 04/14/2014 10:50 AM, René Koch wrote:
Hi,
I have some issues with hosted engine status.
oVirt hosts think that hosted engine is down because it seems that
hosts
can't write to hosted-engine.lockspace due to glusterfs issues (or at
least I think so).
Here's the output of vm-status:
# hosted-engine --vm-status
--== Host 1 status ==--
Status up-to-date : False
Hostname : 10.0.200.102
Host ID : 1
Engine status : unknown stale-data
Score : 2400
Local maintenance : False
Host timestamp : 1397035677
Extra metadata (valid at timestamp):
metadata_parse_version=1
metadata_feature_version=1
timestamp=1397035677 (Wed Apr 9 11:27:57 2014)
host-id=1
score=2400
maintenance=False
state=EngineUp
--== Host 2 status ==--
Status up-to-date : True
Hostname : 10.0.200.101
Host ID : 2
Engine status : {'reason': 'vm not running on
this
host', 'health': 'bad', 'vm': 'down', 'detail': 'unknown'}
Score : 0
Local maintenance : False
Host timestamp : 1397464031
Extra metadata (valid at timestamp):
metadata_parse_version=1
metadata_feature_version=1
timestamp=1397464031 (Mon Apr 14 10:27:11 2014)
host-id=2
score=0
maintenance=False
state=EngineUnexpectedlyDown
timeout=Mon Apr 14 10:35:05 2014
oVirt engine is sending me 2 emails every 10 minutes with the
following
subjects:
- ovirt-hosted-engine state transition EngineDown-EngineStart
- ovirt-hosted-engine state transition EngineStart-EngineUp
In oVirt webadmin I can see the following message:
VM HostedEngine is down. Exit message: internal error Failed to
acquire
lock: error -243.
These messages are really annoying as oVirt isn't doing anything with
hosted engine - I have an uptime of 9 days in my engine vm.
So my questions are now:
Is it intended to send out these messages and detect that ovirt engine
is down (which is false anyway), but not to restart the vm?
How can I disable notifications? I'm planning to write a Nagios plugin
which parses the output of hosted-engine --vm-status and only Nagios
should notify me, not hosted-engine script.
Is is possible or planned to make the whole ha feature optional? I
really really really hate cluster software as it causes more troubles
then standalone machines and in my case the hosted-engine ha feature
really causes troubles (and I didn't had a hardware or network outage
yet only issues with hosted-engine ha agent). I don't need any ha
feature for hosted engine. I just want to run engine virtualized on
oVirt and if engine vm fails (e.g. because of issues with a host) I'll
restart it on another node.
Hi, you can:
1. edit /etc/ovirt-hosted-engine-ha/{agent,broker}-log.conf and tweak
the logger as you like
2. or kill ovirt-ha-broker & ovirt-ha-agent services
Thanks for the information.
So engine is able to run when ovirt-ha-broker and ovirt-ha-agent isn't
running?
Regards,
René
--Jirka
Thanks,
René
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