[ovirt-users] how to handle mount options for hosted engine on glusterfs

Thu Mar 23 09:37:31 UTC 2017

I Think I am going to have to go the "virsh" path and mount a guest based
cdrom storage device using a live cd and fix the vm disk this way.
Meanwhile fix up the fact that vnc and serial console have both been wiped
out following the 4.1 upgrade.

On 22 March 2017 at 11:52, Ian Neilsen <ian.neilsen at gmail.com> wrote:

> Good to know. Ive been using the 1 dash notation following RH document.
> Dont think Ive seen the 1 dash before.
>
> On the original cluster I used IP's second cluster I used FQDN's but made
> sure I have a hosts file present.
>
> On 22 March 2017 at 10:09, /dev/null <devnull at linuxitil.org> wrote:
>
>> Ian, knara,
>>
>> success! I got it working using the two-dash-notation and ip addresses.
>> Shure this is the most relyable way, even with local hosts file.
>>
>> In my case, the hosted vm dies and takes some time to be running again.
>> Is it possible to have the vm surviving the switch to the
>> backup-volfile-server?
>>
>> Thanks & regards
>>
>> /dev/null
>>
>> *On Tue, 21 Mar 2017 11:52:32 +0530, knarra wrote*
>> > On 03/21/2017 10:52 AM, Ian Neilsen wrote:
>> >
>>
>>
>> >
>> > knara
>> >
>> > Looks like your conf is incorrect for mnt option.
>> >
>> >
>>
>> Hi Ian,
>> >
>> >     mnt_option should be mnt_options=backup-volfile-servers=<IP1>:<IP2>
>> and this is how we test it.
>> >
>> > Thanks
>> > kasturi.
>> >
>>
>>
>> >
>> > It should be I believe;  mnt_options=backupvolfile-server=server name
>> >
>> > not
>> >
>> > mnt_options=backup-volfile-servers=host2
>> >
>> > If your dns isnt working or your hosts file is incorrect this will
>> prevent it as well.
>> >
>> >
>> >
>> > On 21 March 2017 at 03:30, /dev/null <devnull at linuxitil.org> wrote:
>> >
>>>
>>>
>>> > Hi kasturi,
>>> >
>>> > thank you. I tested and it seems not to work, even after rebooting the
>>> current mount does not show up the mnt_options nor the switch over works.
>>> >
>>> > [root at host2 ~]# cat /etc/ovirt-hosted-engine/hosted-engine.conf
>>> > ca_cert=/etc/pki/vdsm/libvirt-spice/ca-cert.pem
>>> > gateway=192.168.2.1
>>> > iqn=
>>> > conf_image_UUID=7bdc29ad-bee6-4a33-8d58-feae9f45d54f
>>> > ca_cert=/etc/pki/vdsm/libvirt-spice/ca-cert.pem
>>> > sdUUID=1775d440-649c-4921-ba3b-9b6218c27ef3
>>> > connectionUUID=fcf70593-8214-4e8d-b546-63c210a3d5e7
>>> > conf_volume_UUID=06dd17e5-a440-417a-94e8-75929b6f9ed5
>>> > user=
>>> > host_id=2
>>> > bridge=ovirtmgmt
>>> > metadata_image_UUID=6252c21c-227d-4dbd-bb7b-65cf342154b6
>>> > spUUID=00000000-0000-0000-0000-000000000000
>>> > mnt_options=backup-volfile-servers=host2
>>> > fqdn=ovirt.test.lab
>>> > portal=
>>> > vm_disk_id=1bb9ea7f-986c-4803-ae82-8d5a47b1c496
>>> > metadata_volume_UUID=426ff2cc-58a2-4b83-b22f-3f7dc99890d4
>>> > vm_disk_vol_id=b57d40d2-e68b-440a-bab7-0a9631f4baa4
>>> > domainType=glusterfs
>>> > port=
>>> > console=qxl
>>> > ca_subject="C=EN, L=Test, O=Test, CN=Test"
>>> > password=
>>> > vmid=272942f3-99b9-48b9-aca4-19ec852f6874
>>> > lockspace_image_UUID=9fbdbfd4-3b31-43ce-80e2-283f0aeead49
>>> > lockspace_volume_UUID=b1e4d3ed-ec78-41cd-9a39-4372f488fb92
>>> > vdsm_use_ssl=true
>>> > storage=host1:/gvol0
>>> > conf=/var/run/ovirt-hosted-engine-ha/vm.conf
>>> >
>>> > [root at host2 ~]# mount |grep gvol0
>>> > host1:/gvol0 on /rhev/data-center/mnt/glusterSD/host1:_gvol0 type
>>> fuse.glusterfs (rw,relatime,user_id=0,group_i
>>> d=0,default_permissions,allow_other,max_read=131072 <13%2010%2072>)
>>> >
>>> > Any suggestion?
>>> >
>>> > I will try an answerfile-install as well later, but it was helpful to
>>> know, where to set this.
>>> >
>>> > Thanks & best regards
>>> >
>>> * > On Mon, 20 Mar 2017 12:12:25 +0530, knarra wrote*
>>> >
>>> > > On 03/20/2017 05:09 AM, /dev/null wrote:
>>> > >
>>>
>>> Hi,
>>>
>>> how do i make the hosted_storage aware of gluster server failure? In --deploy i
>>>
>>> cannot
>>> provide backup-volfile-servers. In
>>> /etc/ovirt-hosted-engine/hosted-engine.conf
>>>
>>> there
>>>
>>> is
>>> an mnt_options line, but i
>>>
>>> read
>>> (https://github.com/oVirt/ovirt-hosted-engine-setup/commit/995c6a65ab897d804f794306cc3654214f2c29b6)
>>> that this settings get lost during deployment on seconday
>>>
>>> servers.
>>>
>>> Is there an official way to deal with that? Should this option be set manualy on
>>>
>>> all
>>>
>>> nodes?
>>>
>>> Thanks!
>>>
>>> /dev/null
>>>
>>> Hi, > >    I think in the above patch they are just   hiding the the
>>> query for mount_options but i think all the code is still present and you
>>> should not loose mount options during additional host deployment. For more
>>> info you can refer [1]. >     >     You can set this option manually on all
>>> nodes by editing /etc/ovirt-hosted-engine/hosted-engine.conf. Following
>>> steps will help you to achieve this. > > 1) Move each host to maintenance,
>>> edit the file '/etc/ovirt-hosted-engine/hosted-engine.conf'. > 2) set
>>> mnt_options = backup-volfile-servers=<gluster_ip2>:<gluster_ip3> > 3)
>>> restart the services 'systemctl restart ovirt-ha-agent' ; 'systemctl
>>> restart ovirt-ha-broker' > 4) Activate the node. > > Repeat the above steps
>>> for all the nodes in the cluster. > > [1] https://bugzilla.redhat.com/sh
>>> ow_bug.cgi?id=1426517#c2 > > Hope this helps !! > > Thanks > kasturi >
>>>
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>>
>> --
>> >
>> > Ian Neilsen Mobile: 0424 379 762 Linkedin:
>> http://au.linkedin.com/in/ianneilsen
>> > Twitter : ineilsen
>>
>>
>> >
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>> freundliche Unterst�tzung.
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>>
>>
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>>
>
>
>
> --
> Ian Neilsen
>
> Mobile: 0424 379 762
> Linkedin: http://au.linkedin.com/in/ianneilsen
> Twitter : ineilsen
>

-- 
Ian Neilsen

Mobile: 0424 379 762
Linkedin: http://au.linkedin.com/in/ianneilsen
Twitter : ineilsen
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