[Users] Issues starting hosted engine VM
Itamar Heim
iheim at redhat.com
Mon Jan 20 11:23:03 UTC 2014
On 01/20/2014 01:22 PM, Dafna Ron wrote:
> Itamar, was this only applied for hosted engine or was this added or
> planed to be added to all engine setups?
resume paused VMs is not related to hosted engine
>
>
> On 01/20/2014 11:19 AM, Andrew Lau wrote:
>> Hi,
>>
>> That bug seems to be private :(
>>
>> I'm interested also to hear about this feature, as with 3.3.2 I had my
>> gluster vms go into paused state quite a few times and they actually
>> couldn't be resumed at all, they needed to be forced off and back on.
>>
>> On Mon, Jan 20, 2014 at 10:13 PM, Dafna Ron <dron at redhat.com
>> <mailto:dron at redhat.com>> wrote:
>>
>> interesting... :) so this is now configurable...
>> what happens if qemu fails to start the vm (this happens sometimes
>> - mostly on file type storage). do we have a re-try or a specific
>> error telling the use that the activation failed and manual
>> intervention is required?
>>
>>
>>
>> On 01/20/2014 11:02 AM, Leonid Natapov wrote:
>>
>> All vms. Check this PRD:
>> https://bugzilla.redhat.com/show_bug.cgi?id=723055
>>
>>
>> ----- Original Message -----
>> From: "Dafna Ron" <dron at redhat.com <mailto:dron at redhat.com>>
>> To: "Leonid Natapov" <lnatapov at redhat.com
>> <mailto:lnatapov at redhat.com>>
>> Cc: "Andrew Lau" <andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>, "Yedidyah Bar David"
>> <didi at redhat.com <mailto:didi at redhat.com>>, "users"
>> <users at ovirt.org <mailto:users at ovirt.org>>
>> Sent: Monday, January 20, 2014 12:44:46 PM
>> Subject: Re: [Users] Issues starting hosted engine VM
>>
>> On 01/20/2014 10:38 AM, Leonid Natapov wrote:
>>
>> 1.hosted-engine --vm-start should start engine vm. There
>> was no problem with it when I tested it.
>> 2.hosted-engine --vm-start-paused was added for the case
>> when something is wrong with engine vm and it can't start
>> and requires user intervention. For example in case of
>> kernel panic.
>> User can start engine vm in paused mode ,connect to it and
>> try to fix the problem by booting in single user mode ,etc.
>> 3.When the connectivity to shared storage is lost engine
>> vm becomes paused. VM should be automatically unpaused
>> after connectivity resumes (we introduced this feature in
>> 3.3) but in case of NFS it could take quite time.so may be
>> we should add something like --vm-resume in order to resume
>>
>> Are we talking only on the hosted engine vm or all other vm's?
>> if I have
>> other vm's they will also stop, will they be auto started as
>> well?
>>
>> the engine vm manually.
>>
>> Thanks,
>> Leonid.
>>
>>
>> ----- Original Message -----
>> From: "Andrew Lau" <andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>
>> To: dron at redhat.com <mailto:dron at redhat.com>
>> Cc: "Leonid Natapov" <lnatapov at redhat.com
>> <mailto:lnatapov at redhat.com>>, "Yedidyah Bar David"
>> <didi at redhat.com <mailto:didi at redhat.com>>, "users"
>> <users at ovirt.org <mailto:users at ovirt.org>>
>> Sent: Monday, January 20, 2014 12:28:15 PM
>> Subject: Re: [Users] Issues starting hosted engine VM
>>
>> It was paused due to the connection loss to the NFS
>> server, I would assume
>> once the connection is restored it could attempt to
>> restore it? But I can
>> try dig up the vdsm logs if you want, they would only be a
>> few hours old
>>
>> I think having an option like --vm-resume would at least
>> hide the reason of
>> having to dig into virsh and messing with authentication
>> at the very least.
>>
>> On Mon, Jan 20, 2014 at 9:23 PM, Dafna Ron
>> <dron at redhat.com <mailto:dron at redhat.com>> wrote:
>>
>> the question is what was the vm paused on... this can
>> be found in the qemu
>> vm log.
>> if the vm is paused it will not be auto started - so I
>> am not sure what
>> you expect to change? virsh requires authentication
>> regardless to hosted
>> engine :)
>> Leonid, did you do any testing there?
>>
>>
>> On 01/20/2014 10:13 AM, Andrew Lau wrote:
>>
>> I have opened this BZ 1055461 anyway just in case
>>
>>
>> On Mon, Jan 20, 2014 at 8:33 PM, Andrew Lau
>> <andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com><mailto:
>> andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>> wrote:
>>
>> I was more interested in how the score
>> process would be
>> calculated, the vm-status option considered
>> the VM in a bad state.
>>
>> I left it for a few minutes and nothing
>> seemed to have changed, I
>> think it relates to hosted engine as virsh
>> requires
>> authentication. Should I still open a bz?
>>
>> Cheers,
>> Andrew.
>>
>> On Jan 20, 2014 7:48 PM, "Dafna Ron"
>> <dron at redhat.com <mailto:dron at redhat.com>
>> <mailto:dron at redhat.com
>> <mailto:dron at redhat.com>>> wrote:
>>
>> I am not sure this is a hosted engine
>> question as much as a
>> qemu question.
>> qemu-kvm will not support auto start of
>> vm's after EIO because
>> of remote possibility of corruption.
>>
>> On 01/20/2014 05:46 AM, Andrew Lau wrote:
>>
>> Hi,
>>
>> Quick question, in the scenario eg.
>> the NFS server becomes
>> unreachable and the hosted-engine
>> goes into a paused
>> state. Will other hosts attempt to
>> bring it back up?
>> Should there be a command eg.
>> hosted-engine --vm-resume ?
>>
>> When this happened, I manually
>> forced it to resume using virsh
>>
>>
>> On Sun, Jan 19, 2014 at 7:21 PM,
>> Yedidyah Bar David
>> <didi at redhat.com
>> <mailto:didi at redhat.com> <mailto:didi at redhat.com
>> <mailto:didi at redhat.com>>
>> <mailto:didi at redhat.com
>> <mailto:didi at redhat.com> <mailto:didi at redhat.com
>> <mailto:didi at redhat.com>>>> wrote:
>>
>> Thanks a lot for your efforts
>> and the report!
>> -- Didi
>>
>> ------------------------------
>> ------------------------------------------
>>
>> *From: *"Andrew Lau"
>> <andrew at andrewklau.com <mailto:andrew at andrewklau.com>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>
>>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>>>
>> *To: *"users"
>> <users at ovirt.org <mailto:users at ovirt.org>
>> <mailto:users at ovirt.org
>> <mailto:users at ovirt.org>> <mailto:users at ovirt.org
>> <mailto:users at ovirt.org>
>>
>> <mailto:users at ovirt.org
>> <mailto:users at ovirt.org>>>>
>> *Sent: *Saturday, January
>> 18, 2014 3:20:22 PM
>> *Subject: *Re: [Users]
>> Issues starting hosted
>> engine VM
>>
>>
>> I believe I found the issue
>> and have reported it here
>> https://bugzilla.redhat.com/show_bug.cgi?id=1055059
>>
>> On Sat, Jan 18, 2014 at
>> 11:33 PM, Andrew Lau
>> <andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>
>>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>>> wrote:
>>
>> The interesting thing -
>> trying it with the
>> paused option
>> vdsm seems to create the VM
>>
>> hosted-engine
>> --vm-start-paused
>>
>> vdsm.log
>> http://www.fpaste.org/69604/13900482/
>>
>> But I'm not sure how to
>> then proceed to
>> "resume" it.
>>
>> On Sat, Jan 18, 2014 at
>> 10:23 PM, Andrew Lau
>> <andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>
>>
>> <mailto:andrew at andrewklau.com
>> <mailto:andrew at andrewklau.com>>>> wrote:
>>
>> Hi,
>>
>> With the great help
>> from sbonazzo, I
>> managed to step
>> past the initial bug
>> with the
>> hosted-engine-setup but
>> appear to have run
>> into another show stopper.
>>
>> I ran through the
>> install process
>> successfully up to
>> the stage where it
>> completed and the
>> engine VM was to
>> be shutdown. (The
>> engine has already been
>> installed on
>> the VM and the host
>> has been connected to
>> the engine).
>>
>> The issue starts
>> here that the host finds
>> itself not
>> able to start the VM
>> up again.
>>
>> VDSM Logs:
>> http://www.fpaste.org/69592/00427141/
>> ovirt-hosted-engine-ha agent.log
>> http://www.fpaste.org/69595/43609139/
>>
>> It seems to keep
>> failing to start the VM..
>> when I
>> restart the agent I
>> can see the score drop
>> to 0 after
>> 3 boot attempts.
>> The interesting thing
>> seems to be in
>> the VDSM Logs
>> "'Virtual machine does not
>> exist',
>> 'code': 1}}"
>>
>> I'm not sure where
>> else to look. Suggestions?
>>
>> Cheers,
>>
>> Andrew
>>
>>
>>
>>
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>> <mailto:Users at ovirt.org>>>
>>
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>>
>> -- Didi
>>
>>
>>
>>
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>> <mailto:Users at ovirt.org <mailto:Users at ovirt.org>>
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>>
>>
>>
>> -- Dafna Ron
>>
>>
>>
>> --
>> Dafna Ron
>>
>>
>>
>>
>> -- Dafna Ron
>>
>>
>
>
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