Re: [ovirt-users] Another way of CTDB to mount engine

2015-09-29 Thread Simone Tiraboschi 
On Mon, Sep 28, 2015 at 1:35 PM, Bello Florent <
florent.be...@ville-kourou.fr> wrote:

> hi,
>
> It's really not a single point of failure ? In this way i see 2 point of
> failure, if the hosted-engine break and if the mount server adress break.
> And it's not possible to migrate the engine.
>
>
> Can you explain me why is not a point of failure for you ?
>
That server should be up when you start deploying hosted-engine.
When VDSM accesses that volume it gathers the whole brick list so it will
then be able to use that volume also if the server you initially pointed to
start the deployment process has died.


>
> --
>
> Florent BELLO
>
>
>
> Le 28/09/2015 05:45, Simone Tiraboschi a écrit :
>
>
>
> On Fri, Sep 25, 2015 at 5:36 PM, Bello Florent <
> florent.be...@ville-kourou.fr> wrote:
>
>> Hi,
>>
>> I have 3 nodes with glusterfs installed. I configured replica 3 on my
>> engine volume.
>>
>
> Hi,
> on oVirt  3.6 we still not support hyper convergence that means that you
> cannot use the same hosts for virtualization and for storage with gluster.
>
> So the correct approach is renaming your hosts to:
> host 1 : "192.168.100.101 gluster1.localdomain gluster1"
> host 2 : "192.168.100.102 gluster2.localdomain gluster2"
> host 3 : "192.168.100.103 gluster3.localdomain gluster3"
>
> On an additional host, deploy hosted-engine choosing the gluster host you
> prefer as your entry point: it will not be a single point of failure.
> You don't really need to use CTDB to deploy oVirt hosted-engine.
>
>
>>
>> i don't want to use ctdb for my hosted-engine, but when i start
>> hosted-engine --deploy, use localhost:/engine or
>> gluster.localdomain:/engine, gluster.localdomain is configured in all
>> servers /etc/hosts like :
>> host 1 : "192.168.100.101 gluster.localdomain gluster"
>> host 2 : "192.168.100.102 gluster.localdomain gluster"
>> host 3 : "192.168.100.103 gluster.localdomain gluster",
>>
>> the setup failed with :
>>
>> --== STORAGE CONFIGURATION ==--
>>
>>   During customization use CTRL-D to abort.
>>   Please specify the storage you would like to use (glusterfs,
>> iscsi, fc, nfs3, nfs4)[nfs3]: glusterfs
>> [ INFO  ] Please note that Replica 3 support is required for the shared
>> storage.
>>   Please specify the full shared storage connection path to use
>> (example: host:/path): localhost:/engine
>> [WARNING] Due to several bugs in mount.glusterfs the validation of
>> GlusterFS share cannot be reliable.
>> [ INFO  ] GlusterFS replica 3 Volume detected
>> [ ERROR ] Failed to execute stage 'Environment customization': Connection
>> to storage server failed
>> [ INFO  ] Stage: Clean up
>> [ INFO  ] Generating answer file
>> '/var/lib/ovirt-hosted-engine-setup/answers/answers-20150925121036.conf'
>> [ INFO  ] Stage: Pre-termination
>> [ INFO  ] Stage: Termination
>>
>> I have to use obligatory ctdb or keepalived, or existing another way ?
>> --
>>
>> Florent BELLO
>> Service Informatique
>> informati...@ville-kourou.fr
>> 0594 22 31 22
>> Mairie de Kourou
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
> ___
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> http://lists.ovirt.org/mailman/listinfo/users
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Re: [ovirt-users] Another way of CTDB to mount engine

2015-09-28 Thread Bello Florent 
 
hi, 

It's really not a single point of failure ? In this way i see 2
point of failure, if the hosted-engine break and if the mount server
adress break. And it's not possible to migrate the engine. 

Can you
explain me why is not a point of failure for you ? 

-- 

Florent BELLO


Le 28/09/2015 05:45, Simone Tiraboschi a écrit : 

> On Fri, Sep 25,
2015 at 5:36 PM, Bello Florent  wrote:
>

>> Hi, 
>> 
>> I have 3 nodes with glusterfs installed. I configured
replica 3 on my engine volume.
> 
> Hi, 
> on oVirt 3.6 we still not
support hyper convergence that means that you cannot use the same hosts
for virtualization and for storage with gluster. 
> 
> So the correct
approach is renaming your hosts to: 
> host 1 : "192.168.100.101
gluster1.localdomain gluster1"
> host 2 : "192.168.100.102
gluster2.localdomain gluster2"
> host 3 : "192.168.100.103
gluster3.localdomain gluster3" 
> 
> On an additional host, deploy
hosted-engine choosing the gluster host you prefer as your entry point:
it will not be a single point of failure. 
> You don't really need to
use CTDB to deploy oVirt hosted-engine. 
> 
>> i don't want to use ctdb
for my hosted-engine, but when i start hosted-engine --deploy, use
localhost:/engine or gluster.localdomain:/engine, gluster.localdomain is
configured in all servers /etc/hosts like :
>> host 1 : "192.168.100.101
gluster.localdomain gluster"
>> host 2 : "192.168.100.102
gluster.localdomain gluster"
>> host 3 : "192.168.100.103
gluster.localdomain gluster", 
>> 
>> the setup failed with : 
>> 
>>
--== STORAGE CONFIGURATION ==--
>> 
>> During customization use CTRL-D
to abort.
>> Please specify the storage you would like to use
(glusterfs, iscsi, fc, nfs3, nfs4)[nfs3]: glusterfs
>> [ INFO ] Please
note that Replica 3 support is required for the shared storage.
>>
Please specify the full shared storage connection path to use (example:
host:/path): localhost:/engine
>> [WARNING] Due to several bugs in
mount.glusterfs the validation of GlusterFS share cannot be reliable.
>>
[ INFO ] GlusterFS replica 3 Volume detected
>> [ ERROR ] Failed to
execute stage 'Environment customization': Connection to storage server
failed
>> [ INFO ] Stage: Clean up
>> [ INFO ] Generating answer file
'/var/lib/ovirt-hosted-engine-setup/answers/answers-20150925121036.conf'
>>
[ INFO ] Stage: Pre-termination
>> [ INFO ] Stage: Termination 
>> 
>>
I have to use obligatory ctdb or keepalived, or existing another way ?

>> -- 
>> 
>> Florent BELLO
>> Service Informatique
>>
informati...@ville-kourou.fr
>> 0594 22 31 22
>> Mairie de Kourou 
>>
___
>> Users mailing list
>>
Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users [1]



Links:
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Re: [ovirt-users] Another way of CTDB to mount engine

2015-09-28 Thread Simone Tiraboschi 
On Fri, Sep 25, 2015 at 5:36 PM, Bello Florent <
florent.be...@ville-kourou.fr> wrote:

> Hi,
>
> I have 3 nodes with glusterfs installed. I configured replica 3 on my
> engine volume.
>

Hi,
on oVirt  3.6 we still not support hyper convergence that means that you
cannot use the same hosts for virtualization and for storage with gluster.

So the correct approach is renaming your hosts to:
host 1 : "192.168.100.101 gluster1.localdomain gluster1"
host 2 : "192.168.100.102 gluster2.localdomain gluster2"
host 3 : "192.168.100.103 gluster3.localdomain gluster3"

On an additional host, deploy hosted-engine choosing the gluster host you
prefer as your entry point: it will not be a single point of failure.
You don't really need to use CTDB to deploy oVirt hosted-engine.


> i don't want to use ctdb for my hosted-engine, but when i start
> hosted-engine --deploy, use localhost:/engine or
> gluster.localdomain:/engine, gluster.localdomain is configured in all
> servers /etc/hosts like :
> host 1 : "192.168.100.101 gluster.localdomain gluster"
> host 2 : "192.168.100.102 gluster.localdomain gluster"
> host 3 : "192.168.100.103 gluster.localdomain gluster",
>
> the setup failed with :
>
> --== STORAGE CONFIGURATION ==--
>
>   During customization use CTRL-D to abort.
>   Please specify the storage you would like to use (glusterfs,
> iscsi, fc, nfs3, nfs4)[nfs3]: glusterfs
> [ INFO  ] Please note that Replica 3 support is required for the shared
> storage.
>   Please specify the full shared storage connection path to use
> (example: host:/path): localhost:/engine
> [WARNING] Due to several bugs in mount.glusterfs the validation of
> GlusterFS share cannot be reliable.
> [ INFO  ] GlusterFS replica 3 Volume detected
> [ ERROR ] Failed to execute stage 'Environment customization': Connection
> to storage server failed
> [ INFO  ] Stage: Clean up
> [ INFO  ] Generating answer file
> '/var/lib/ovirt-hosted-engine-setup/answers/answers-20150925121036.conf'
> [ INFO  ] Stage: Pre-termination
> [ INFO  ] Stage: Termination
>
> I have to use obligatory ctdb or keepalived, or existing another way ?
> --
>
> Florent BELLO
> Service Informatique
> informati...@ville-kourou.fr
> 0594 22 31 22
> Mairie de Kourou
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

[ovirt-users] Another way of CTDB to mount engine

2015-09-25 Thread Bello Florent 
 

Hi, 

I have 3 nodes with glusterfs installed. I configured replica
3 on my engine volume.

i don't want to use ctdb for my hosted-engine,
but when i start hosted-engine --deploy, use localhost:/engine or
gluster.localdomain:/engine, gluster.localdomain is configured in all
servers /etc/hosts like :
host 1 : "192.168.100.101 gluster.localdomain
gluster"
host 2 : "192.168.100.102 gluster.localdomain gluster"
host 3 :
"192.168.100.103 gluster.localdomain gluster", 

the setup failed with :


--== STORAGE CONFIGURATION ==--

 During customization use CTRL-D to
abort.
 Please specify the storage you would like to use (glusterfs,
iscsi, fc, nfs3, nfs4)[nfs3]: glusterfs
[ INFO ] Please note that
Replica 3 support is required for the shared storage.
 Please specify
the full shared storage connection path to use (example: host:/path):
localhost:/engine
[WARNING] Due to several bugs in mount.glusterfs the
validation of GlusterFS share cannot be reliable.
[ INFO ] GlusterFS
replica 3 Volume detected
[ ERROR ] Failed to execute stage 'Environment
customization': Connection to storage server failed
[ INFO ] Stage:
Clean up
[ INFO ] Generating answer file
'/var/lib/ovirt-hosted-engine-setup/answers/answers-20150925121036.conf'
[
INFO ] Stage: Pre-termination
[ INFO ] Stage: Termination 

I have to
use obligatory ctdb or keepalived, or existing another way ? 
--


Florent BELLO
Service Informatique
informati...@ville-kourou.fr
0594
22 31 22
Mairie de Kourou ___
Users mailing list
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