[Users] Ovirt and gluster storage (two servers in a cluster)

Wed Jul 4 04:36:06 UTC 2012

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.
>
>     *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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