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

knarra knarra at redhat.com
Tue Mar 21 06:22:32 UTC 2017


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 
> <mailto: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_id=0,default_permissions,allow_other,max_read=131072
>     <tel: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
>>     <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/show_bug.cgi?id=1426517#c2
>     <https://bugzilla.redhat.com/show_bug.cgi?id=1426517#c2> > > Hope
>     this helps !! > > Thanks > kasturi >
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