From blanchet at abes.fr Mon Jun 2 07:24:22 2014 Content-Type: multipart/mixed; boundary="===============8344636356672490087==" MIME-Version: 1.0 From: =?utf-8?q?Nathana=C3=ABl_Blanchet_=3Cblanchet_at_abes=2Efr=3E?= To: users at ovirt.org Subject: [ovirt-users] probing peers in gluster after installing hosts Date: Mon, 02 Jun 2014 13:24:19 +0200 Message-ID: <538C5EE3.1000808@abes.fr> --===============8344636356672490087== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------050806000807090207010701 Content-Type: text/plain; charset=3DISO-8859-1; format=3Dflowed Content-Transfer-Encoding: 8bit Hi all, I created 3 clusters in unique datacenter. I installed my hosts to the = first one after activating the gluster service in the cluster tab. A = expected otopi installed then the vdsm-gluster rpm and everything were = ok for this first cluster. The other ones weren't initially gluster ready and I wanted to activate = the service after installing the host (so they were without vdsm-gluster = package). But checking that item didn't do anything for these hosts, so = that I had to manually install vdsm-gluster package. Then, when creating = a volume, the UI told me that hosts couldn't communicate. So I had to = manually probe them. This leads me to that question : is it an expected = behaviour? The whole gluster job (installing appropriated package and = probing peers in the cluster) should be done thanks to the UI cluster = tab "gluster service". A last question : why isn't it possible to probe host on different = clusters in the same datacenter, could be very useful. -- = Nathana=C3=ABl Blanchet Supervision r=C3=A9seau P=C3=B4le exploitation et maintenance D=C3=A9partement des syst=C3=A8mes d'information 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 = T=C3=A9l. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr --------------050806000807090207010701 Content-Type: text/html; charset=3DISO-8859-1 Content-Transfer-Encoding: 7bit Hi all,

I created 3 clusters in unique datacenter. I installed
my hosts to the first one after activating the gluster service in the cluster tab. A expected otopi installed then the vdsm-gluster rpm and everything were ok for this first cluster.
The other ones weren't initially gluster ready and I wanted to activate the service after installing the host (so they were without vdsm-gluster package). But checking that item didn't do anything for these hosts, so that I had to manually install vdsm-gluster package. Then, when creating a volume, the UI told me that hosts couldn't communicate. So I had to manually probe them. This leads me to that question : is it an expected behaviour? The whole gluster job (installing appropriated package and probing peers in the cluster) should be done thanks to the UI cluster tab "gluster service".
A last question : why isn't it possible to probe host on different clusters in the same datacenter, could be very useful.
-- =

Nathanaël Blanchet

Supervision réseau
Pôle exploitation et maintenance
Département des systèmes d'information
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5 	=

Tél. 33 (0)4 67 54 84 55
Fax  33 (0)4 67 54 84 14
bl=
anchet(a)abes.fr 
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boundary="===============6052319508222056043==" MIME-Version: 1.0 From: Kanagaraj To: users at ovirt.org Subject: Re: [ovirt-users] probing peers in gluster after installing hosts Date: Mon, 02 Jun 2014 19:12:36 +0530 Message-ID: <538C7F4C.2050108@redhat.com> In-Reply-To: 538C5EE3.1000808@abes.fr --===============6052319508222056043== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------060009080107030600040909 Content-Type: text/plain; charset=3DISO-8859-1; format=3Dflowed Content-Transfer-Encoding: 8bit - selecting the 'enable gluster service' in later stage(after the hosts = are added) doesn't do anything. As you said, this could be a nice = feature though. - 'gluster peer probe' is used to form a logical cluster. I don't think = having the hosts from different clusters to form a gluster-cluster is = the right way. Thanks, Kanagaraj On 06/02/2014 04:54 PM, Nathana=C3=ABl Blanchet wrote: > Hi all, > > I created 3 clusters in unique datacenter. I installed my hosts to the = > first one after activating the gluster service in the cluster tab. A = > expected otopi installed then the vdsm-gluster rpm and everything were = > ok for this first cluster. > The other ones weren't initially gluster ready and I wanted to = > activate the service after installing the host (so they were without = > vdsm-gluster package). But checking that item didn't do anything for = > these hosts, so that I had to manually install vdsm-gluster package. = > Then, when creating a volume, the UI told me that hosts couldn't = > communicate. So I had to manually probe them. This leads me to that = > question : is it an expected behaviour? The whole gluster job = > (installing appropriated package and probing peers in the cluster) = > should be done thanks to the UI cluster tab "gluster service". > A last question : why isn't it possible to probe host on different = > clusters in the same datacenter, could be very useful. > -- = > Nathana=C3=ABl Blanchet > > Supervision r=C3=A9seau > P=C3=B4le exploitation et maintenance > D=C3=A9partement des syst=C3=A8mes d'information > 227 avenue Professeur-Jean-Louis-Viala > 34193 MONTPELLIER CEDEX 5 = > T=C3=A9l. 33 (0)4 67 54 84 55 > Fax 33 (0)4 67 54 84 14 > blanchet(a)abes.fr = > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users --------------060009080107030600040909 Content-Type: text/html; charset=3DISO-8859-1 Content-Transfer-Encoding: 7bit - selecting the 'enable gluster service' in later stage(after the hosts are added) doesn't do anything. As you said, this could be a nice feature though.
- 'gluster peer probe' is used to form a logical cluster. I don't think having the hosts from different clusters to form a gluster-cluster is the right way.

Thanks,
Kanagaraj

On 06/02/2014 04:54 PM, Nathanaël Blanchet wrote:
Hi all,

I created 3 clusters in unique datacenter. I installed
my hosts to the first one after activating the gluster service in the cluster tab. A expected otopi installed then the vdsm-gluster rpm and everything were ok for this first cluster.
The other ones weren't initially gluster ready and I wanted to activate the service after installing the host (so they were without vdsm-gluster package). But checking that item didn't do anything for these hosts, so that I had to manually install vdsm-gluster package. Then, when creating a volume, the UI told me that hosts couldn't communicate. So I had to manually probe them. This leads me to that question : is it an expected behaviour? The whole gluster job (installing appropriated package and probing peers in the cluster) should be done thanks to the UI cluster tab "gluster service".
A last question : why isn't it possible to probe host on different clusters in the same datacenter, could be very useful.
-- =

Nathanaël Blanchet

Supervision réseau
Pôle exploitation et maintenance
Département des systèmes d'information
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5 	=

Tél. 33 (0)4 67 54 84 55
Fax  33 (0)4 67 54 84 14
blanchet(a)abes.fr 


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MDcwMzA2MDAwNDA5MDktLQo= --===============6052319508222056043==-- From jvdwege at xs4all.nl Mon Jun 2 14:43:23 2014 Content-Type: multipart/mixed; boundary="===============0392176272027982590==" MIME-Version: 1.0 From: Joop To: users at ovirt.org Subject: Re: [ovirt-users] probing peers in gluster after installing hosts Date: Mon, 02 Jun 2014 20:43:00 +0200 Message-ID: <538CC5B4.90105@xs4all.nl> In-Reply-To: 538C5EE3.1000808@abes.fr --===============0392176272027982590== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------020202010309000408030402 Content-Type: text/plain; charset=3DISO-8859-1; format=3Dflowed Content-Transfer-Encoding: 8bit Nathana=C3=ABl Blanchet wrote: > Hi all, > > I created 3 clusters in unique datacenter. I installed my hosts to the = > first one after activating the gluster service in the cluster tab. A = > expected otopi installed then the vdsm-gluster rpm and everything were = > ok for this first cluster. > The other ones weren't initially gluster ready and I wanted to = > activate the service after installing the host (so they were without = > vdsm-gluster package). But checking that item didn't do anything for = > these hosts, so that I had to manually install vdsm-gluster package. = > Then, when creating a volume, the UI told me that hosts couldn't = > communicate. So I had to manually probe them. This leads me to that = > question : is it an expected behaviour? The whole gluster job = > (installing appropriated package and probing peers in the cluster) = > should be done thanks to the UI cluster tab "gluster service". > A last question : why isn't it possible to probe host on different = > clusters in the same datacenter, could be very useful. After checking the checkbox for gluster services you'll need to migrated = all vms from a host and put it into maintenance then use the re-install = link and the needed packages will be downloaded and installed and a peer = probe will be done. After that reactivate the host and proceed to the = next one. One caveat found: chkconfig glusterd on isn't executed. You'll = need to do that by hand and also start the service or restart the server = while in maintenance mode. Joop --------------020202010309000408030402 Content-Type: text/html; charset=3DISO-8859-1 Content-Transfer-Encoding: 7bit Nathanaël Blanchet wrote:
Hi all,

I created 3 clusters in unique datacenter. I installed
my hosts to the first one after activating the gluster service in the cluster tab. A expected otopi installed then the vdsm-gluster rpm and everything were ok for this first cluster.
The other ones weren't initially gluster ready and I wanted to activate the service after installing the host (so they were without vdsm-gluster package). But checking that item didn't do anything for these hosts, so that I had to manually install vdsm-gluster package. Then, when creating a volume, the UI told me that hosts couldn't communicate. So I had to manually probe them. This leads me to that question : is it an expected behaviour? The whole gluster job (installing appropriated package and probing peers in the cluster) should be done thanks to the UI cluster tab "gluster service".
A last question : why isn't it possible to probe host on different clusters in the same datacenter, could be very useful.
After checking the checkbox for gluster services you'll need to migrated all vms from a host and put it into maintenance then  use the re-install link and the needed packages will be downloaded and installed and a peer probe will be done. After that reactivate the host and proceed to the next one. One caveat found: chkconfig glusterd on isn't executed. You'll need to do that by hand and also start the service or restart the server while in maintenance mode.

Joop

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