[Users] Attach nfs domain to gluster dc

Juan Pablo Lorier jplorier at gmail.com
Tue Dec 17 10:40:50 UTC 2013

Thank you both. I'll see that on Friday and let you know the results.

El 17/12/13 05:32, Itamar Heim escribió:
> On 12/17/2013 01:39 AM, Sergey Gotliv wrote:
>> Juan,
>> Ping me when you doing that, Friday is not a working day but usually 
>> I am checking my mails anyway.
>> I tested option #2 (see my previous mail) this morning - I just 
>> updated connection details from REST and from database directly
>> both options worked for me. Usually I wouldn't recommend to do that 
>> from database but in this particular case this is
>> the quickest possible solution.
>> Copying images between different export domain may be a little bit 
>> tricky, I'll try to create a summary for you.
>> When attaching storage domain to the new data center it makes sense 
>> to allow editing connection details at least for NFS,
>> because new data center contains new hosts that have different NFS 
>> client...
> Juan - you shouldn't have to learn to use the REST API directly. all 
> of it should be available via ovirt-shell - a command line tool (as 
> well as python and java sdk's for programming).
>> Regards,
>> Sergey
>> ----- Original Message -----
>>> From: "Juan Pablo Lorier" <jplorier at gmail.com>
>>> To: "Sergey Gotliv" <sgotliv at redhat.com>
>>> Cc: "Sander Grendelman" <sander at grendelman.com>, "users" 
>>> <users at ovirt.org>
>>> Sent: Tuesday, December 17, 2013 1:10:01 AM
>>> Subject: Re: [Users] Attach nfs domain to gluster dc
>>> Hi Sergey,
>>> No need to apologize. I'm used to hear that iso domains need to import
>>> the images, that just copying them won't work. I thought export domains
>>> were the same, but if you say I can just copy, I'll try that next 
>>> Friday
>>> when I come back to the office.
>>> I think this is the easier approach as using the REST would mean that I
>>> have to learn to use it and it's not the right time of the year :-).
>>> I think that been capable of modifying the options won't heart anybody
>>> and looks like harmless, at least when domain is in maintenance, you 
>>> may
>>> say if I'm wrong.
>>> Thank you very much for your help and for your disposition.
>>> I'll let you know what happens next Friday.
>>> Regards,
>>> El 16/12/13 20:59, Sergey Gotliv escribió:
>>>> Juan,
>>>> I apologize for discovering this thread with delay. Let me try to 
>>>> explain.
>>>> Attach option indeed missing a possibility to configure NFS options 
>>>> such as
>>>> nfsver, retrans and timeo
>>>> which by the way available when creating a new storage domain (see the
>>>> Advanced Parameters section).
>>>> I have to check this flow again and see which storage connection we 
>>>> use in
>>>> order to connect this storage to the new data center. If this is a bug
>>>> we'll fix it.
>>>> Now about the default NFS version, we are using version 3 because 
>>>> usually
>>>> customers have a problem to configure NFS server version 4 properly 
>>>> so we
>>>> allow using version 4 as an advanced option.
>>>> Now about your problem:
>>>> Option 1:
>>>> Can you just create another Export Storage Domain from scratch using
>>>> advanced parameters I mentioned above in order to configure the NFS
>>>> version and then just copy the content between these domains manually.
>>>> Option 2:
>>>> You can try to create new storage connection with the REST API as 
>>>> explained
>>>> here: http://www.ovirt.org/Features/Manage_Storage_Connections and 
>>>> then
>>>> try to re-attach this storage domain again.
>>>> Or we can just update storage_server_connections table manually in 
>>>> your
>>>> database.
>>>> I never tried option 2 by myself but it should work.
>>>> Please, feel free to contact me on my direct mail tomorrow
>>>> sgotliv at redhat.com and I'll walk you through one of these options 
>>>> and we
>>>> can check you NFS configuration.
>>>> Sergey
>>>> ----- Original Message -----
>>>>> From: "Juan Pablo Lorier" <jplorier at gmail.com>
>>>>> To: "Sander Grendelman" <sander at grendelman.com>
>>>>> Cc: "users" <users at ovirt.org>
>>>>> Sent: Friday, December 13, 2013 1:21:08 PM
>>>>> Subject: Re: [Users] Attach nfs domain to gluster dc
>>>>> Hi Sander,
>>>>> I'll do the changes to the firewall as you mention. I'm running the
>>>>> domain in a host as my engine is in a vm with low disk resources. I
>>>>> don't know if there's a way to set up the domain automatically with
>>>>> ovirt when it's deployed in a host.
>>>>> Regards,
>>>>> On 13/12/13 06:00, Sander Grendelman wrote:
>>>>>> On Thu, Dec 12, 2013 at 5:01 PM, Juan Pablo Lorier 
>>>>>> <jplorier at gmail.com>
>>>>>> wrote:
>>>>>> ...
>>>>>>> # nfs
>>>>>>> -A INPUT -p tcp -m tcp --dport 111   -j ACCEPT
>>>>>>> -A INPUT -p tcp -m tcp --dport 38467 -j ACCEPT
>>>>>>> -A INPUT -p tcp -m tcp --dport 2049  -j ACCEPT
>>>>>>> -A INPUT -p udp -m udp --dport 2049  -j ACCEPT
>>>>>>> -A INPUT -p udp -m udp --dport 41729  -j ACCEPT
>>>>>>> -A INPUT -p tcp -m tcp --dport 48491  -j ACCEPT
>>>>>>> -A INPUT -p udp -m udp --dport 43828  -j ACCEPT
>>>>>>> -A INPUT -p tcp -m tcp --dport 48491  -j ACCEPT
>>>>>>> -A INPUT -p udp -m udp --dport 47492  -j ACCEPT
>>>>>>> -A INPUT -p tcp -m tcp --dport 58837  -j ACCEPT
>>>>>> The above rules might break after a reboot.
>>>>>> Best practice is to set the normally dynamic nfs ports to fixed
>>>>>> values in /etc/sysconfig/nfs and then open those ports in the 
>>>>>> firewall.
>>>>>>> Now I'm changing the settings by overriding the defaults in the 
>>>>>>> domain
>>>>>>> and auto negotiating the protocol. This firewall correction may 
>>>>>>> be a
>>>>>>> good thing to add in the deploy.
>>>>>> Are you doing this on a node or on your engine server?
>>>>>> The engine-setup configured both /etc/sysconfig/nfs and iptables 
>>>>>> for me
>>>>>> on my engine server (for the iso domain).
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