[Users] Ovirt and gluster storage (two servers in a cluster)
Robert Middleswarth
robert at middleswarth.net
Wed Jul 4 06:48:40 UTC 2012
On 07/04/2012 12:36 AM, Robert Middleswarth wrote:
>
> On 07/04/2012 12:20 AM, зоррыч wrote:
>>
>> In what may be the reason for my situation?
>>
> I had the problem using Fedora 17 using native posix fs mode.
>>
>> In your blog, I have not found any articles on ovirt. Last post by
>> date it11/17/2011
>>
> I am still finishing up my blog post I haven't posted it yet It is
> still a draft. Getting closer. I am waking though the steps in a
> fresh install to make sure I am not missing any steps.
>>
>> In any case, if my situation has been reproduced and you - a sign of
>> a bug that needs to be identified and transferred to the correction
>> of the developers.
>>
> When it was happening to me it looked like a locking problem. Since I
> was having other problems with Fedora 17 I rebuilt everything under
> CentOS 6.2 with zero problems. However I learned a few little tricks
> that might have helped make it not happen.
>>
>> In what configuration you have installed gluster?
>>
> Both Posix FS (Native mode) and NFS using localhost:/volume format
> over a 1G network.
>
>> Its performance depends on the choice of operating modes.
>>
> In both cases provisioning was really slow. I found the NFS ran
> better of the two from research it was likely because NFS shares are
> by default cached native gluster fs isn't. However if you are using
> Fedora 17 with the latest kernel and it is stable for you Posix FS is
> likely much faster since fuse supports direct IO now. Also a faster
> network could make a real difference.
>>
>> Thanks for your help
>>
> Thanks
> Robert
>
>> *From:*Robert Middleswarth [mailto:robert at middleswarth.net]
>> *Sent:* Wednesday, July 04, 2012 6:15 AM
>> *To:* зоррыч
>> *Cc:* users at ovirt.org
>> *Subject:* Re: [Users] Ovirt and gluster storage (two servers in a
>> cluster)
>>
>> I am writing a blog post on the steps I did to get it all working. I
>> have done it 3 times without issue. I am doing it a 4th time well
>> writing I had a lot of problems with Fedora 17 but that was because
>> of Fedora 17 not oVirt. Once I switched over to CentOS 6.2 and his
>> build #8 everything just started working and working very well. On
>> CentOS 6.2 I found that NFS is faster then native mode because of
>> Caching over my gigabyte network but both are slow well provisioning.
>>
>> Thanks
>> Robert
>>
>> On 07/03/2012 06:07 PM, зоррыч wrote:
>>
>> I use Scientific linux,and have already installed several times
>> ovirt and vdsm, but the problem is reproduced.
>>
>> I sent the logs vdsm, but they do not specify any error.
>>
>> How do I know what is going wrong?
>>
>> I would be grateful for any ideas.
>>
I was just able to repeat the issue. If you only have one node active
it will activate and work fine. But if you have 2 or more hosts / nodes
it will just round robin though the hosts with each host contending on
each round. I don't have that problem with NFS shares.
Thanks
Robert
>> *From:*Robert Middleswarth [mailto:robert at middleswarth.net]
>> *Sent:* Wednesday, July 04, 2012 1:31 AM
>> *To:* зоррыч
>> *Cc:* users at ovirt.org <mailto:users at ovirt.org>
>> *Subject:* Re: [Users] Ovirt and gluster storage (two servers in
>> a cluster)
>>
>> I had the same problem with Fedora 17. I killed everything and
>> started from scratch using centos and it works fine. I am wonder
>> if there is the an issue with the Direct IO support that was
>> added recently to Fedora 17.
>>
>> Thanks
>> Robert
>>
>> On 07/03/2012 05:15 PM, зоррыч wrote:
>>
>> I can not mount a volume cluster with two servers.
>>
>> In a separate node activation, gluster volume installed
>> successfully.
>>
>> For simultaneous operation of two servers with gluster volume
>> ovirt constantly switches SPM, without giving an error.
>>
>> *From:*Robert Middleswarth [mailto:robert at middleswarth.net]
>> *Sent:* Wednesday, July 04, 2012 12:00 AM
>> *To:* зоррыч
>> *Cc:* users at ovirt.org <mailto:users at ovirt.org>
>> *Subject:* Re: [Users] Ovirt and gluster storage (two servers
>> in a cluster)
>>
>> Are you having problems creating a Volume or mounting the volume?
>>
>> Thanks
>> Robert
>>
>>
>> On 07/03/2012 03:56 PM, зоррыч wrote:
>>
>> I've updated ovirt and vdsm to the latest test version
>> (git repository). But the situation continues to be repeated.
>>
>> What am I doing wrong? How do I find what is wrong?
>>
>> *From:*users-bounces at ovirt.org
>> <mailto:users-bounces at ovirt.org>
>> [mailto:users-bounces at ovirt.org] *On Behalf Of *??????
>> *Sent:* Wednesday, June 27, 2012 6:19 PM
>> *To:* robert at middleswarth.net
>> <mailto:robert at middleswarth.net>
>> *Cc:* users at ovirt.org <mailto:users at ovirt.org>
>> *Subject:* Re: [Users] Ovirt and gluster storage (two
>> servers in a cluster)
>>
>> logs in the attachment
>>
>> *From:*users-bounces at ovirt.org
>> <mailto:users-bounces at ovirt.org>
>> [mailto:users-bounces at ovirt.org]
>> <mailto:[mailto:users-bounces at ovirt.org]> *On Behalf Of
>> *??????
>> *Sent:* Wednesday, June 27, 2012 1:15 PM
>> *To:* 'Robert Middleswarth'
>> *Cc:* users at ovirt.org <mailto:users at ovirt.org>
>> *Subject:* Re: [Users] Ovirt and gluster storage (two
>> servers in a cluster)
>>
>> The problem still persists.
>>
>> How do I solve it?
>>
>> *From:*users-bounces at ovirt.org
>> <mailto:users-bounces at ovirt.org>
>> [mailto:users-bounces at ovirt.org] *On Behalf Of *??????
>> *Sent:* Tuesday, June 26, 2012 2:38 PM
>> *To:* 'Robert Middleswarth'
>> *Cc:* users at ovirt.org <mailto:users at ovirt.org>
>> *Subject:* Re: [Users] Ovirt and gluster storage (two
>> servers in a cluster)
>>
>> I checked the manual work gluster from two hosts.
>> Mounting is working correctly.
>>
>> However, in a pair of hosts refuse to work (connection
>> error storage).
>>
>> Individually, each of their hosts working correctly,
>>
>> and connects with gluster storage.
>>
>> I have to manually mount gluster storage? In which folder?
>>
>> You can write that how-to add a server to an existing
>> cluster of gluster?
>>
>> *From:*users-bounces at ovirt.org
>> <mailto:users-bounces at ovirt.org>
>> [mailto:users-bounces at ovirt.org] *On Behalf Of *Robert
>> Middleswarth
>> *Sent:* Monday, June 25, 2012 11:49 PM
>> *To:* users at ovirt.org <mailto:users at ovirt.org>
>> *Subject:* Re: [Users] Ovirt and gluster storage (two
>> servers in a cluster)
>>
>> On 06/25/2012 09:54 AM, ?????? wrote:
>>
>> Hi.
>>
>> I use ovirt 3.1 and gluster storage.
>>
>> I added the two servers in a cluster.
>>
>> And faced with the problem of their joint work with
>> gluster storage.
>>
>> Storage not initialized, although on one server
>> working successfully with gluster storage.
>>
>> Vdsm log an attachment
>>
>> (vdsm-6.log – node -1)
>>
>> (vdsm-7.log – node -2)
>>
>> You have to tweak you ipstates table to allow glusterd to
>> talk to the other box glusterd and you have to manually
>> peer the systems together.
>>
>> _______________________________________________
>>
>> Users mailing list
>>
>> Users at ovirt.org <mailto:Users at ovirt.org>
>>
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>> Thanks
>> Robert
>>
>
>
>
>
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