10:02 a.m.
Hello,
[Here : oVirt 3.5.3, 3 x CentOS 7.0 hosts with replica-3 gluster SD on
the hosts].
On the switchs, I have created a dedicated VLAN to isolate the glusterFS
traffic, but I'm not using it yet.
I was thinking of creating a dedicated IP for each node's gluster NIC,
and a DNS record by the way ("my_nodes_name_GL"), but I fear using this
hostname or this ip in oVirt GUI host network interface tab, leading
oVirt think this is a different host.
Not being sure this fear is clearly described, let's say :
- On each node, I create a second ip+(dns record in the soa) used by
gluster, plugged on the correct VLAN
- in oVirt gui, in the host network setting tab, the interface will be
seen, with its ip, but reverse-dns-related to a different hostname.
Here, I fear oVirt might check this reverse DNS and declare this NIC
belongs to another host.
I would also prefer not use a reverse pointing to the name of the host
management ip, as this is evil and I'm a good guy.
On your side, how do you cope with a dedicated storage network in case
of storage+compute mixed hosts?
--
Nicolas ECARNOT
10:47 a.m.
Hello Nicolas,
Did you have a look to this :
http://www.ovirt.org/Features/Select_Network_For_Gluster ?
But it is only available from >=3.6...
Le 27/11/2015 17:02, Nicolas Ecarnot a écrit :
Hello,
[Here : oVirt 3.5.3, 3 x CentOS 7.0 hosts with replica-3 gluster SD on
the hosts].
On the switchs, I have created a dedicated VLAN to isolate the
glusterFS traffic, but I'm not using it yet.
I was thinking of creating a dedicated IP for each node's gluster NIC,
and a DNS record by the way ("my_nodes_name_GL"), but I fear using
this hostname or this ip in oVirt GUI host network interface tab,
leading oVirt think this is a different host.
Not being sure this fear is clearly described, let's say :
- On each node, I create a second ip+(dns record in the soa) used by
gluster, plugged on the correct VLAN
- in oVirt gui, in the host network setting tab, the interface will be
seen, with its ip, but reverse-dns-related to a different hostname.
Here, I fear oVirt might check this reverse DNS and declare this NIC
belongs to another host.
I would also prefer not use a reverse pointing to the name of the host
management ip, as this is evil and I'm a good guy.
On your side, how do you cope with a dedicated storage network in case
of storage+compute mixed hosts?
--
Nathanaël Blanchet
Supervision réseau
Pôle Infrastrutures Informatiques
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
1 p.m.
Hi Nicolas,
what works for me in 3.6 is creating a new network for gluster within
oVirt, marking it for gluster use only, optionally setting bonded
interface upon NIC's that are dedicated for gluster traffic and
providing it with an IP address without configuring a gateway, and then
modifying /etc/hosts so that hostnames are resolvable between nodes.
Every node should have two hostnames, one for ovirtmgmt network that is
resolvable via DNS (or via /etc/hosts), and the other for gluster
network that is resolvable purely via /etc/hosts (every node should
contain entries for themselves and for each gluster node).
Peers should be probed via their gluster hostnames, while ensuring that
gluster peer status contains only addresses and hostnames that are
dedicated for gluster on each node. Same goes for adding bricks,
creating a volume etc.
This way, no communication (except gluster one) should be allowed
through gluster dedicated vlan. To be on the safe side, we can also
force gluster to listen only on dedicated interfaces via
transport.socket.bind-address option (haven't tried this one, will do).
Separation of gluster (or in the future any storage network), live
migration network, vm and management network is always a good thing.
Perhaps, we could manage failover of those networks within oVirt, ie. in
case lm network is down - use gluster network for lm and vice versa.
Cool candidate for an RFE, but first we need this supported within
gluster itself. This may prove useful when there is not enough NIC's
available to do a bond beneath every defined network. But we can still
separate traffic and provide failover by selecting multiple networks
without actually doing any load balancing between the two.
As Nathanaël mentioned, marking network for gluster use is only
available in 3.6. I'm also interested if there is a better way around
this procedure, or perharps enhancing it.
Kind regards,
Ivan
On 11/27/2015 05:47 PM, Nathanaël Blanchet wrote:
Hello Nicolas,
Did you have a look to this :
http://www.ovirt.org/Features/Select_Network_For_Gluster ?
But it is only available from >=3.6...
Le 27/11/2015 17:02, Nicolas Ecarnot a écrit :
> Hello,
>
> [Here : oVirt 3.5.3, 3 x CentOS 7.0 hosts with replica-3 gluster SD
> on the hosts].
>
> On the switchs, I have created a dedicated VLAN to isolate the
> glusterFS traffic, but I'm not using it yet.
> I was thinking of creating a dedicated IP for each node's gluster
> NIC, and a DNS record by the way ("my_nodes_name_GL"), but I fear
> using this hostname or this ip in oVirt GUI host network interface
> tab, leading oVirt think this is a different host.
>
> Not being sure this fear is clearly described, let's say :
> - On each node, I create a second ip+(dns record in the soa) used by
> gluster, plugged on the correct VLAN
> - in oVirt gui, in the host network setting tab, the interface will
> be seen, with its ip, but reverse-dns-related to a different hostname.
> Here, I fear oVirt might check this reverse DNS and declare this NIC
> belongs to another host.
>
> I would also prefer not use a reverse pointing to the name of the
> host management ip, as this is evil and I'm a good guy.
>
> On your side, how do you cope with a dedicated storage network in
> case of storage+compute mixed hosts?
>
2:55 p.m.
Hi Ivan, Nathanaël and everyone,
Today, I finally upgraded this oVirt 3.5.2 into 3.6.1, and I saw
appearing the gluster network in the networks settings.
I'm not using it yet because I still have questions.
I think I perfectly understood your answer, but there are points I'd
like to know better :
- I'm not sure that using DNS or /etc/hosts is making any difference.
Once every dedicated NIC is using a dedicated ip address, with the
dedicated DNS-record + PTR, I see no benefit to use /etc/hosts... ?
- The oVirt setup I'm working on in this discussion is an
storage+compute setup (oVirt+gluster on the same hosts). That means that
my oVirt nodes are both clients and servers of themselves - data storage
speaking.
I'm worrying about not specifying any gateway for the gluster network :
* How will all my hosts - as gluster clients - be able to find a route
towards the gluster network (gluster servers)?
* How will my guest - my VMs as gluster clients - be able to find a
route towards the gluster network (indeed, sometimes also provided that
way!) ?
- Obviously, all this wouldn't be that fun if is wasn't already in
production (well OK, QA), and thus I have to change the ip of my gluster
nodes
(https://www.gluster.org/pipermail/gluster-users/2014-May/017328.html).
--
Nicolas ECARNOT
Le 27/11/2015 20:00, Ivan Bulatovic a écrit :
Hi Nicolas,
what works for me in 3.6 is creating a new network for gluster within
oVirt, marking it for gluster use only, optionally setting bonded
interface upon NIC's that are dedicated for gluster traffic and
providing it with an IP address without configuring a gateway, and then
modifying /etc/hosts so that hostnames are resolvable between nodes.
Every node should have two hostnames, one for ovirtmgmt network that is
resolvable via DNS (or via /etc/hosts), and the other for gluster
network that is resolvable purely via /etc/hosts (every node should
contain entries for themselves and for each gluster node).
Peers should be probed via their gluster hostnames, while ensuring that
gluster peer status contains only addresses and hostnames that are
dedicated for gluster on each node. Same goes for adding bricks,
creating a volume etc.
This way, no communication (except gluster one) should be allowed
through gluster dedicated vlan. To be on the safe side, we can also
force gluster to listen only on dedicated interfaces via
transport.socket.bind-address option (haven't tried this one, will do).
Separation of gluster (or in the future any storage network), live
migration network, vm and management network is always a good thing.
Perhaps, we could manage failover of those networks within oVirt, ie. in
case lm network is down - use gluster network for lm and vice versa.
Cool candidate for an RFE, but first we need this supported within
gluster itself. This may prove useful when there is not enough NIC's
available to do a bond beneath every defined network. But we can still
separate traffic and provide failover by selecting multiple networks
without actually doing any load balancing between the two.
As Nathanaël mentioned, marking network for gluster use is only
available in 3.6. I'm also interested if there is a better way around
this procedure, or perharps enhancing it.
Kind regards,
Ivan
On 11/27/2015 05:47 PM, Nathanaël Blanchet wrote:
> Hello Nicolas,
>
> Did you have a look to this :
> http://www.ovirt.org/Features/Select_Network_For_Gluster ?
> But it is only available from >=3.6...
>
> Le 27/11/2015 17:02, Nicolas Ecarnot a écrit :
>> Hello,
>>
>> [Here : oVirt 3.5.3, 3 x CentOS 7.0 hosts with replica-3 gluster SD
>> on the hosts].
>>
>> On the switchs, I have created a dedicated VLAN to isolate the
>> glusterFS traffic, but I'm not using it yet.
>> I was thinking of creating a dedicated IP for each node's gluster
>> NIC, and a DNS record by the way ("my_nodes_name_GL"), but I fear
>> using this hostname or this ip in oVirt GUI host network interface
>> tab, leading oVirt think this is a different host.
>>
>> Not being sure this fear is clearly described, let's say :
>> - On each node, I create a second ip+(dns record in the soa) used by
>> gluster, plugged on the correct VLAN
>> - in oVirt gui, in the host network setting tab, the interface will
>> be seen, with its ip, but reverse-dns-related to a different hostname.
>> Here, I fear oVirt might check this reverse DNS and declare this NIC
>> belongs to another host.
>>
>> I would also prefer not use a reverse pointing to the name of the
>> host management ip, as this is evil and I'm a good guy.
>>
>> On your side, how do you cope with a dedicated storage network in
>> case of storage+compute mixed hosts?
>>
>
--
Nicolas ECARNOT
1:59 a.m.
Hello,
I'm digging out this thread because I now had the time to work on this
subject, and I'm stuck.
This oVirt setup has a standalone engine, and 3 hosts.
These 3 hosts are hypervisors and gluster nodes, each using one NIC for
all the traffic, that is a very bad idea. (Well, it's working, but not
recommended).
I added 3 OTHER nodes, and so far, I only created the gluster setup and
created a replica-3 volume.
Each of these new nodes now have one NIC for management, one NIC for
gluster, and other NICs for other things.
Each NIC has an IP + DNS name in its dedicated VLAN : one for mgmt and
one for gluster.
The mgmt subnet is routed, though the gluster subnet is not.
Every node can ping each other, either using the mgmt or the gluster
subnets.
The creation of the gluster subnet and volume went very well and seems
to be perfect.
Now, in the oVirt web gui, I'm trying to add these nodes as oVirt hosts.
I'm using their mgmt DNS names, and I'm getting :
"Error while executing action: Server xxxxxxxx is already part of
another cluster."
I found no idea when googling, except something related to gluster (you
bet!), telling this may be related to the fact that there is already a
volume, managed with a different name.
Obviously, using a different name and IP is what I needed!
I used "transport.socket.bind-address" to make sure the gluster traffic
will only use the dedicated NICs.
Well, I also tried to created a storage domain relying on the freshly
created gluster volume, but as this subnet is not routed, it is not
reachable from the manager nor the existing SPM.
I'm feeling I'm missing something here, so your help is warmly welcome.
Nicolas ECARNOT
PS : CentOS 7.2 everywhere, oVirt 3.6.7
Le 27/11/2015 à 20:00, Ivan Bulatovic a écrit :
Hi Nicolas,
what works for me in 3.6 is creating a new network for gluster within
oVirt, marking it for gluster use only, optionally setting bonded
interface upon NIC's that are dedicated for gluster traffic and
providing it with an IP address without configuring a gateway, and then
modifying /etc/hosts so that hostnames are resolvable between nodes.
Every node should have two hostnames, one for ovirtmgmt network that is
resolvable via DNS (or via /etc/hosts), and the other for gluster
network that is resolvable purely via /etc/hosts (every node should
contain entries for themselves and for each gluster node).
Peers should be probed via their gluster hostnames, while ensuring that
gluster peer status contains only addresses and hostnames that are
dedicated for gluster on each node. Same goes for adding bricks,
creating a volume etc.
This way, no communication (except gluster one) should be allowed
through gluster dedicated vlan. To be on the safe side, we can also
force gluster to listen only on dedicated interfaces via
transport.socket.bind-address option (haven't tried this one, will do).
Separation of gluster (or in the future any storage network), live
migration network, vm and management network is always a good thing.
Perhaps, we could manage failover of those networks within oVirt, ie. in
case lm network is down - use gluster network for lm and vice versa.
Cool candidate for an RFE, but first we need this supported within
gluster itself. This may prove useful when there is not enough NIC's
available to do a bond beneath every defined network. But we can still
separate traffic and provide failover by selecting multiple networks
without actually doing any load balancing between the two.
As Nathanaël mentioned, marking network for gluster use is only
available in 3.6. I'm also interested if there is a better way around
this procedure, or perharps enhancing it.
Kind regards,
Ivan
On 11/27/2015 05:47 PM, Nathanaël Blanchet wrote:
> Hello Nicolas,
>
> Did you have a look to this :
> http://www.ovirt.org/Features/Select_Network_For_Gluster ?
> But it is only available from >=3.6...
>
> Le 27/11/2015 17:02, Nicolas Ecarnot a écrit :
>> Hello,
>>
>> [Here : oVirt 3.5.3, 3 x CentOS 7.0 hosts with replica-3 gluster SD
>> on the hosts].
>>
>> On the switchs, I have created a dedicated VLAN to isolate the
>> glusterFS traffic, but I'm not using it yet.
>> I was thinking of creating a dedicated IP for each node's gluster
>> NIC, and a DNS record by the way ("my_nodes_name_GL"), but I fear
>> using this hostname or this ip in oVirt GUI host network interface
>> tab, leading oVirt think this is a different host.
>>
>> Not being sure this fear is clearly described, let's say :
>> - On each node, I create a second ip+(dns record in the soa) used by
>> gluster, plugged on the correct VLAN
>> - in oVirt gui, in the host network setting tab, the interface will
>> be seen, with its ip, but reverse-dns-related to a different hostname.
>> Here, I fear oVirt might check this reverse DNS and declare this NIC
>> belongs to another host.
>>
>> I would also prefer not use a reverse pointing to the name of the
>> host management ip, as this is evil and I'm a good guy.
>>
>> On your side, how do you cope with a dedicated storage network in
>> case of storage+compute mixed hosts?
>>
>
--
Nicolas ECARNOT
2:55 a.m.
On Fri, Aug 19, 2016 at 12:29 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net>
wrote:
Hello,
I'm digging out this thread because I now had the time to work on this
subject, and I'm stuck.
This oVirt setup has a standalone engine, and 3 hosts.
These 3 hosts are hypervisors and gluster nodes, each using one NIC for
all the traffic, that is a very bad idea. (Well, it's working, but not
recommended).
I added 3 OTHER nodes, and so far, I only created the gluster setup and
created a replica-3 volume.
Each of these new nodes now have one NIC for management, one NIC for
gluster, and other NICs for other things.
Each NIC has an IP + DNS name in its dedicated VLAN : one for mgmt and one
for gluster.
The mgmt subnet is routed, though the gluster subnet is not.
Every node can ping each other, either using the mgmt or the gluster
subnets.
The creation of the gluster subnet and volume went very well and seems to
be perfect.
Now, in the oVirt web gui, I'm trying to add these nodes as oVirt hosts.
I'm using their mgmt DNS names, and I'm getting :
"Error while executing action: Server xxxxxxxx is already part of another
cluster."
Did you peer probe the gluster cluster prior to adding the nodes to oVirt?
What's the output of "gluster peer status"
If I understand correctly:
node1 - mgmt.ip.1 & gluster.ip.1
node2 - mgmt.ip.2 & gluster.ip.2
node3 - mgmt.ip.3 & gluster.ip.3
Did you create a network and assign "gluster" role to it in the cluster?
Were you able to add the first node to cluster, and got this error on
second node addition ?
From the error, it looks like oVirt does not understand the peer list
returned from gluster is a match with node being added.
Please provide the log snippet of the failure (from engine.log as well as
vdsm.log on node)
I found no idea when googling, except something related to gluster
(you
bet!), telling this may be related to the fact that there is already a
volume, managed with a different name.
Obviously, using a different name and IP is what I needed!
I used "transport.socket.bind-address" to make sure the gluster traffic
will only use the dedicated NICs.
Well, I also tried to created a storage domain relying on the freshly
created gluster volume, but as this subnet is not routed, it is not
reachable from the manager nor the existing SPM.
The existing SPM - isn't it one of the the 3 new nodes being added? Or are
you adding the 3 nodes to your existing cluster? If so, I suggest you try
adding this to a new cluster
I'm feeling I'm missing something here, so your help is warmly welcome.
Nicolas ECARNOT
PS : CentOS 7.2 everywhere, oVirt 3.6.7
Le 27/11/2015 à 20:00, Ivan Bulatovic a écrit :
> Hi Nicolas,
>
> what works for me in 3.6 is creating a new network for gluster within
> oVirt, marking it for gluster use only, optionally setting bonded
> interface upon NIC's that are dedicated for gluster traffic and
> providing it with an IP address without configuring a gateway, and then
> modifying /etc/hosts so that hostnames are resolvable between nodes.
> Every node should have two hostnames, one for ovirtmgmt network that is
> resolvable via DNS (or via /etc/hosts), and the other for gluster
> network that is resolvable purely via /etc/hosts (every node should
> contain entries for themselves and for each gluster node).
>
> Peers should be probed via their gluster hostnames, while ensuring that
> gluster peer status contains only addresses and hostnames that are
> dedicated for gluster on each node. Same goes for adding bricks,
> creating a volume etc.
>
> This way, no communication (except gluster one) should be allowed
> through gluster dedicated vlan. To be on the safe side, we can also
> force gluster to listen only on dedicated interfaces via
> transport.socket.bind-address option (haven't tried this one, will do).
>
> Separation of gluster (or in the future any storage network), live
> migration network, vm and management network is always a good thing.
> Perhaps, we could manage failover of those networks within oVirt, ie. in
> case lm network is down - use gluster network for lm and vice versa.
> Cool candidate for an RFE, but first we need this supported within
> gluster itself. This may prove useful when there is not enough NIC's
> available to do a bond beneath every defined network. But we can still
> separate traffic and provide failover by selecting multiple networks
> without actually doing any load balancing between the two.
>
> As Nathanaël mentioned, marking network for gluster use is only
> available in 3.6. I'm also interested if there is a better way around
> this procedure, or perharps enhancing it.
>
> Kind regards,
>
> Ivan
>
> On 11/27/2015 05:47 PM, Nathanaël Blanchet wrote:
>
>> Hello Nicolas,
>>
>> Did you have a look to this :
>> http://www.ovirt.org/Features/Select_Network_For_Gluster ?
>> But it is only available from >=3.6...
>>
>> Le 27/11/2015 17:02, Nicolas Ecarnot a écrit :
>>
>>> Hello,
>>>
>>> [Here : oVirt 3.5.3, 3 x CentOS 7.0 hosts with replica-3 gluster SD
>>> on the hosts].
>>>
>>> On the switchs, I have created a dedicated VLAN to isolate the
>>> glusterFS traffic, but I'm not using it yet.
>>> I was thinking of creating a dedicated IP for each node's gluster
>>> NIC, and a DNS record by the way ("my_nodes_name_GL"), but I fear
>>> using this hostname or this ip in oVirt GUI host network interface
>>> tab, leading oVirt think this is a different host.
>>>
>>> Not being sure this fear is clearly described, let's say :
>>> - On each node, I create a second ip+(dns record in the soa) used by
>>> gluster, plugged on the correct VLAN
>>> - in oVirt gui, in the host network setting tab, the interface will
>>> be seen, with its ip, but reverse-dns-related to a different hostname.
>>> Here, I fear oVirt might check this reverse DNS and declare this NIC
>>> belongs to another host.
>>>
>>> I would also prefer not use a reverse pointing to the name of the
>>> host management ip, as this is evil and I'm a good guy.
>>>
>>> On your side, how do you cope with a dedicated storage network in
>>> case of storage+compute mixed hosts?
>>>
>>>
>>
>
--
Nicolas ECARNOT
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
4:03 a.m.
Le 19/08/2016 à 09:55, Sahina Bose a écrit :
On Fri, Aug 19, 2016 at 12:29 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net
<mailto:nicolas@ecarnot.net>> wrote:
Hello,
I'm digging out this thread because I now had the time to work on
this subject, and I'm stuck.
This oVirt setup has a standalone engine, and 3 hosts.
These 3 hosts are hypervisors and gluster nodes, each using one
NIC for all the traffic, that is a very bad idea. (Well, it's
working, but not recommended).
I added 3 OTHER nodes, and so far, I only created the gluster
setup and created a replica-3 volume.
Each of these new nodes now have one NIC for management, one NIC
for gluster, and other NICs for other things.
Each NIC has an IP + DNS name in its dedicated VLAN : one for mgmt
and one for gluster.
The mgmt subnet is routed, though the gluster subnet is not.
Every node can ping each other, either using the mgmt or the
gluster subnets.
The creation of the gluster subnet and volume went very well and
seems to be perfect.
Now, in the oVirt web gui, I'm trying to add these nodes as oVirt
hosts.
I'm using their mgmt DNS names, and I'm getting :
"Error while executing action: Server xxxxxxxx is already part of
another cluster."
Did you peer probe the gluster cluster prior to adding the nodes to oVirt?
Yes, and using their "gluster subnet" names.
It went fine.
What's the output of "gluster peer status"
[root@serv-vm-al04 log]# gluster peer status
Number of Peers: 2
Hostname: serv-vm-al05-data.sdis.isere.fr
Uuid: eddb3c6d-2e98-45ca-bd1f-6d2153bbb60e
State: Peer in Cluster (Connected)
Hostname: serv-vm-al06-data.sdis.isere.fr
Uuid: cafefdf3-ffc3-4589-abf6-6ca76905593b
State: Peer in Cluster (Connected)
On the two other nodes, the same command output is OK.
If I understand correctly:
node1 - mgmt.ip.1 & gluster.ip.1
node2 - mgmt.ip.2 & gluster.ip.2
node3 - mgmt.ip.3 & gluster.ip.3
Right
Did you create a network and assign "gluster" role to it in the cluster?
I created a gluster network, but did not assign the gluster role so far,
as my former 3 hosts had no dedicated NIC not ip for that.
I planned to assign this role once my 3 new hosts were part of the game.
Were you able to add the first node to cluster
No
, and got this error on second node addition ?
I had the error
when trying to add the first node.
From the error, it looks like oVirt does not understand the peer list
returned from gluster is a match with node being added.
Sounds correct
Please provide the log snippet of the failure (from engine.log as
well
as vdsm.log on node)
See attached file
I found no idea when googling, except something related to gluster
(you bet!), telling this may be related to the fact that there is
already a volume, managed with a different name.
Obviously, using a different name and IP is what I needed!
I used "transport.socket.bind-address" to make sure the gluster
traffic will only use the dedicated NICs.
Well, I also tried to created a storage domain relying on the
freshly created gluster volume, but as this subnet is not routed,
it is not reachable from the manager nor the existing SPM.
The existing SPM - isn't it one of the the 3 new nodes being added?
No, the SPM
is one of the 3 former and still existing hosts.
Or are you adding the 3 nodes to your existing cluster? If so, I
suggest you try adding this to a new cluster
OK, I tried and succeed to create a
new cluster.
In this new cluster, I was ABLE to add the first new host, using its
mgmt DNS name.
This first host still has to have its NICs configured, and (using Chrome
or FF) the access to the network settings window is stalling the browser
(I tried to restart even the engine, to no avail). Thus, I can not setup
this first node NICs.
Thus, I can not add any further host because oVirt relies on a first
host to validate the further ones.
--
Nicolas ECARNOT
6:43 a.m.
On Fri, Aug 19, 2016 at 2:33 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net>
wrote:
Le 19/08/2016 à 09:55, Sahina Bose a écrit :
On Fri, Aug 19, 2016 at 12:29 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net>
wrote:
> Hello,
>
> I'm digging out this thread because I now had the time to work on this
> subject, and I'm stuck.
>
> This oVirt setup has a standalone engine, and 3 hosts.
> These 3 hosts are hypervisors and gluster nodes, each using one NIC for
> all the traffic, that is a very bad idea. (Well, it's working, but not
> recommended).
>
> I added 3 OTHER nodes, and so far, I only created the gluster setup and
> created a replica-3 volume.
> Each of these new nodes now have one NIC for management, one NIC for
> gluster, and other NICs for other things.
> Each NIC has an IP + DNS name in its dedicated VLAN : one for mgmt and
> one for gluster.
> The mgmt subnet is routed, though the gluster subnet is not.
> Every node can ping each other, either using the mgmt or the gluster
> subnets.
>
> The creation of the gluster subnet and volume went very well and seems to
> be perfect.
>
> Now, in the oVirt web gui, I'm trying to add these nodes as oVirt hosts.
> I'm using their mgmt DNS names, and I'm getting :
> "Error while executing action: Server xxxxxxxx is already part of another
> cluster."
>
Did you peer probe the gluster cluster prior to adding the nodes to oVirt?
Yes, and using their "gluster subnet" names.
It went fine.
What's the output of "gluster peer status"
[root@serv-vm-al04 log]# gluster peer status
Number of Peers: 2
Hostname: serv-vm-al05-data.sdis.isere.fr
Uuid: eddb3c6d-2e98-45ca-bd1f-6d2153bbb60e
State: Peer in Cluster (Connected)
Hostname: serv-vm-al06-data.sdis.isere.fr
Uuid: cafefdf3-ffc3-4589-abf6-6ca76905593b
State: Peer in Cluster (Connected)
On the two other nodes, the same command output is OK.
If I understand correctly:
node1 - mgmt.ip.1 & gluster.ip.1
node2 - mgmt.ip.2 & gluster.ip.2
node3 - mgmt.ip.3 & gluster.ip.3
Right
Did you create a network and assign "gluster" role to it in the cluster?
I created a gluster network, but did not assign the gluster role so far,
as my former 3 hosts had no dedicated NIC not ip for that.
I planned to assign this role once my 3 new hosts were part of the game.
Were you able to add the first node to cluster
No
, and got this error on second node addition ?
I had the error when trying to add the first node.
From the error, it looks like oVirt does not understand the peer list
returned from gluster is a match with node being added.
Sounds correct
Please provide the log snippet of the failure (from engine.log as well as
vdsm.log on node)
See attached file
I couldn't view the attached log files for some reason, but the issue is
that you're adding the node which is part of a cluster to an existing
cluster. That will not work, even from gluster CLI
> I found no idea when googling, except something related to gluster (you
> bet!), telling this may be related to the fact that there is already a
> volume, managed with a different name.
>
> Obviously, using a different name and IP is what I needed!
> I used "transport.socket.bind-address" to make sure the gluster traffic
> will only use the dedicated NICs.
>
>
> Well, I also tried to created a storage domain relying on the freshly
> created gluster volume, but as this subnet is not routed, it is not
> reachable from the manager nor the existing SPM.
>
The existing SPM - isn't it one of the the 3 new nodes being added?
No, the SPM is one of the 3 former and still existing hosts.
Or are you adding the 3 nodes to your existing cluster? If so, I suggest
you try adding this to a new cluster
OK, I tried and succeed to create a new cluster.
In this new cluster, I was ABLE to add the first new host, using its mgmt
DNS name.
This first host still has to have its NICs configured, and (using Chrome
or FF) the access to the network settings window is stalling the browser (I
tried to restart even the engine, to no avail). Thus, I can not setup this
first node NICs.
Thus, I can not add any further host because oVirt relies on a first host
to validate the further ones.
Network team should be able to help you here.
--
Nicolas ECARNOT
7:50 a.m.
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Le 19/08/2016 à 13:43, Sahina Bose a écrit :
> Or are you adding the 3 nodes to your existing cluster? If so, I
> suggest you try adding this to a new cluster
OK, I tried and succeed to create a new cluster.
In this new cluster, I was ABLE to add the first new host, using
its mgmt DNS name.
This first host still has to have its NICs configured, and (using
Chrome or FF) the access to the network settings window is
stalling the browser (I tried to restart even the engine, to no
avail). Thus, I can not setup this first node NICs.
Thus, I can not add any further host because oVirt relies on a
first host to validate the further ones.
Network team should be able to help you here.
OK, there were no mean I could continue this way (browser crash), so I
tried and succeed doing so :
- remove the newly created host and cluster
- create a new DATACENTER
- create a new cluster in this DC
- add the first new host : OK
- add the 2 other new hosts : OK
Now, I can smoothly configure their NICs.
Doing all this, I saw that oVirt detected there already was existing
gluster cluster and volume, and integrated it in oVirt.
Then, I was able to create a new storage domain in this new DC and
cluster, using one of the *gluster* FQDN's host. It went nicely.
BUT, when viewing the volume tab and brick details, the displayed brick
names are the host DNS name, and NOT the host GLUSTER DNS names.
I'm worrying about this, confirmed by what I read in the logs :
2016-08-19 14:46:30,484 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate brick
'serv-vm-al04-data.sdis.isere.fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct network
as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
2016-08-19 14:46:30,492 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate brick
'serv-vm-al05-data.sdis.isere.fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct network
as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
2016-08-19 14:46:30,500 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate brick
'serv-vm-al06-data.sdis.isere.fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct network
as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
[oVirt shell (connected)]# list clusters
id : 00000001-0001-0001-0001-000000000045
name : cluster51
description: Cluster d'alerte de test
id : 1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30
name : cluster52
description: Cluster d'alerte de test
[oVirt shell (connected)]#
"cluster52" is the recent cluster, and I do have a dedicated gluster
network, marked as gluster network, in the correct DC and cluster.
The only point is that :
- Each host has its name ("serv-vm-al04") and a second name for gluster
("serv-vm-al04-data").
- Using blahblahblah-data is correct on a gluster point of view
- Maybe oVirt is disturb not to be able to ping the gluster FQDN (not
routed) and then throwing this error?
--
Nicolas ECARNOT
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<div class="moz-cite-prefix">Le 19/08/2016 à 13:43, Sahina Bose a
écrit :<br>
</div>
<blockquote
cite="mid:CACjzOvf4_vEzdG=ZdzsD4Neddu8JdOWnL5YX-4jHLGVsgS2usA@mail.gmail.com"
type="cite">
<div dir="ltr"><span
class=""></span><br>
<span class=""> </span>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span
class="">
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<div> Or are you adding the 3 nodes to your
existing cluster? If so, I suggest you try
adding this to a new cluster<br>
</div>
</div>
</div>
</div>
</blockquote>
</span> OK, I tried and succeed to create a new cluster.<br>
In this new cluster, I was ABLE to add the first new
host, using its mgmt DNS name.<br>
This first host still has to have its NICs configured,
and (using Chrome or FF) the access to the network
settings window is stalling the browser (I tried to
restart even the engine, to no avail). Thus, I can not
setup this first node NICs.<br>
<br>
Thus, I can not add any further host because oVirt
relies on a first host to validate the further ones.<span
class=""><font color="#888888"><br>
</font></span></div>
</blockquote>
<div><br>
<br>
</div>
<div>Network team should be able to help you here.<br>
</div>
</div>
<br>
</div>
</div>
</blockquote>
<br>
OK, there were no mean I could continue this way (browser crash), so
I tried and succeed doing so :<br>
- remove the newly created host and cluster<br>
- create a new DATACENTER<br>
- create a new cluster in this DC<br>
- add the first new host : OK<br>
- add the 2 other new hosts : OK<br>
<br>
Now, I can smoothly configure their NICs.<br>
<br>
Doing all this, I saw that oVirt detected there already was existing
gluster cluster and volume, and integrated it in oVirt.<br>
<br>
Then, I was able to create a new storage domain in this new DC and
cluster, using one of the *gluster* FQDN's host. It went nicely.<br>
<br>
BUT, when viewing the volume tab and brick details, the displayed
brick names are the host DNS name, and NOT the host GLUSTER DNS
names.<br>
<br>
I'm worrying about this, confirmed by what I read in the logs :<br>
<br>
2016-08-19 14:46:30,484 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate
brick 'serv-vm-al04-data.sdis.isere.fr:/gluster/data/brick04<br>
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
network as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'<br>
2016-08-19 14:46:30,492 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate
brick 'serv-vm-al05-data.sdis.isere.fr:/gluster/data/brick04<br>
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
network as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'<br>
2016-08-19 14:46:30,500 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate
brick 'serv-vm-al06-data.sdis.isere.fr:/gluster/data/brick04<br>
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
network as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'<br>
<br>
[oVirt shell (connected)]# list clusters<br>
<br>
id : 00000001-0001-0001-0001-000000000045<br>
name : cluster51<br>
description: Cluster d'alerte de test<br>
<br>
id : 1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30<br>
name : cluster52<br>
description: Cluster d'alerte de test<br>
<br>
[oVirt shell (connected)]# <br>
<br>
"cluster52" is the recent cluster, and I do have a dedicated gluster
network, marked as gluster network, in the correct DC and cluster.<br>
The only point is that :<br>
- Each host has its name ("serv-vm-al04") and a second name for
gluster ("serv-vm-al04-data").<br>
- Using blahblahblah-data is correct on a gluster point of view<br>
- Maybe oVirt is disturb not to be able to ping the gluster FQDN
(not routed) and then throwing this error?<br>
<br>
-- <br>
Nicolas ECARNOT<br>
</body>
</html>
--------------799007BC4F4CF3293454B115--
12:54 a.m.
On Fri, Aug 19, 2016 at 6:20 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net>
wrote:
Le 19/08/2016 à 13:43, Sahina Bose a écrit :
Or are you adding the 3 nodes to your existing cluster? If so, I suggest
> you try adding this to a new cluster
>
> OK, I tried and succeed to create a new cluster.
> In this new cluster, I was ABLE to add the first new host, using its mgmt
> DNS name.
> This first host still has to have its NICs configured, and (using Chrome
> or FF) the access to the network settings window is stalling the browser (I
> tried to restart even the engine, to no avail). Thus, I can not setup this
> first node NICs.
>
> Thus, I can not add any further host because oVirt relies on a first host
> to validate the further ones.
>
Network team should be able to help you here.
OK, there were no mean I could continue this way (browser crash), so I
tried and succeed doing so :
- remove the newly created host and cluster
- create a new DATACENTER
- create a new cluster in this DC
- add the first new host : OK
- add the 2 other new hosts : OK
Now, I can smoothly configure their NICs.
Doing all this, I saw that oVirt detected there already was existing
gluster cluster and volume, and integrated it in oVirt.
Then, I was able to create a new storage domain in this new DC and
cluster, using one of the *gluster* FQDN's host. It went nicely.
BUT, when viewing the volume tab and brick details, the displayed brick
names are the host DNS name, and NOT the host GLUSTER DNS names.
I'm worrying about this, confirmed by what I read in the logs :
2016-08-19 14:46:30,484 WARN [org.ovirt.engine.core.vdsbroker.gluster.
GlusterVolumesListReturnForXmlRpc] (DefaultQuartzScheduler_Worker-100)
[107dc2e3] Could not associate brick 'serv-vm-al04-data.sdis.isere.
fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct network
as no gluster network found in cluster '1c8e75a0-af3f-4e97-a8fb-
2f7ef3ed9f30'
2016-08-19 14:46:30,492 WARN [org.ovirt.engine.core.vdsbroker.gluster.
GlusterVolumesListReturnForXmlRpc] (DefaultQuartzScheduler_Worker-100)
[107dc2e3] Could not associate brick 'serv-vm-al05-data.sdis.isere.
fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct network
as no gluster network found in cluster '1c8e75a0-af3f-4e97-a8fb-
2f7ef3ed9f30'
2016-08-19 14:46:30,500 WARN [org.ovirt.engine.core.vdsbroker.gluster.
GlusterVolumesListReturnForXmlRpc] (DefaultQuartzScheduler_Worker-100)
[107dc2e3] Could not associate brick 'serv-vm-al06-data.sdis.isere.
fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct network
as no gluster network found in cluster '1c8e75a0-af3f-4e97-a8fb-
2f7ef3ed9f30'
[oVirt shell (connected)]# list clusters
id : 00000001-0001-0001-0001-000000000045
name : cluster51
description: Cluster d'alerte de test
id : 1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30
name : cluster52
description: Cluster d'alerte de test
[oVirt shell (connected)]#
"cluster52" is the recent cluster, and I do have a dedicated gluster
network, marked as gluster network, in the correct DC and cluster.
The only point is that :
- Each host has its name ("serv-vm-al04") and a second name for gluster
("serv-vm-al04-data").
- Using blahblahblah-data is correct on a gluster point of view
- Maybe oVirt is disturb not to be able to ping the gluster FQDN (not
routed) and then throwing this error?
We do have a limitation currently that if you use multiple FQDNs, oVirt
cannot associate it to the gluster brick correctly. This will be a problem
only when you try brick management from oVirt - i.e try to remove or
replace brick from oVirt. For monitoring brick status and detecting bricks
- this is not an issue, and you can ignore the error in logs.
Adding Ramesh who has a patch to fix this .
--
Nicolas ECARNOT
1:10 a.m.
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Content-Transfer-Encoding: 8bit
On 08/22/2016 11:24 AM, Sahina Bose wrote:
On Fri, Aug 19, 2016 at 6:20 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net
<mailto:nicolas@ecarnot.net>> wrote:
Le 19/08/2016 à 13:43, Sahina Bose a écrit :
>
>> Or are you adding the 3 nodes to your existing cluster? If
>> so, I suggest you try adding this to a new cluster
> OK, I tried and succeed to create a new cluster.
> In this new cluster, I was ABLE to add the first new host,
> using its mgmt DNS name.
> This first host still has to have its NICs configured, and
> (using Chrome or FF) the access to the network settings
> window is stalling the browser (I tried to restart even the
> engine, to no avail). Thus, I can not setup this first node NICs.
>
> Thus, I can not add any further host because oVirt relies on
> a first host to validate the further ones.
>
>
>
> Network team should be able to help you here.
>
OK, there were no mean I could continue this way (browser crash),
so I tried and succeed doing so :
- remove the newly created host and cluster
- create a new DATACENTER
- create a new cluster in this DC
- add the first new host : OK
- add the 2 other new hosts : OK
Now, I can smoothly configure their NICs.
Doing all this, I saw that oVirt detected there already was
existing gluster cluster and volume, and integrated it in oVirt.
Then, I was able to create a new storage domain in this new DC and
cluster, using one of the *gluster* FQDN's host. It went nicely.
BUT, when viewing the volume tab and brick details, the displayed
brick names are the host DNS name, and NOT the host GLUSTER DNS names.
I'm worrying about this, confirmed by what I read in the logs :
2016-08-19 14:46:30,484 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate
brick 'serv-vm-al04-data.sdis.isere.fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
network as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
2016-08-19 14:46:30,492 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate
brick 'serv-vm-al05-data.sdis.isere.fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
network as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
2016-08-19 14:46:30,500 WARN
[org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
(DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not associate
brick 'serv-vm-al06-data.sdis.isere.fr:/gluster/data/brick04
' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
network as no gluster network found in cluster
'1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
[oVirt shell (connected)]# list clusters
id : 00000001-0001-0001-0001-000000000045
name : cluster51
description: Cluster d'alerte de test
id : 1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30
name : cluster52
description: Cluster d'alerte de test
[oVirt shell (connected)]#
"cluster52" is the recent cluster, and I do have a dedicated
gluster network, marked as gluster network, in the correct DC and
cluster.
The only point is that :
- Each host has its name ("serv-vm-al04") and a second name for
gluster ("serv-vm-al04-data").
- Using blahblahblah-data is correct on a gluster point of view
- Maybe oVirt is disturb not to be able to ping the gluster FQDN
(not routed) and then throwing this error?
We do have a limitation currently that if you use multiple FQDNs,
oVirt cannot associate it to the gluster brick correctly. This will be
a problem only when you try brick management from oVirt - i.e try to
remove or replace brick from oVirt. For monitoring brick status and
detecting bricks - this is not an issue, and you can ignore the error
in logs.
Adding Ramesh who has a patch to fix this .
Patch https://gerrit.ovirt.org/#/c/60083/ is posted to address this
issue. But it will work only if the oVirt Engine can resolve FQDN
*'serv-vm-al04-data.xx*'* to an IP address which is mapped to the
gluster NIC (NIC with gluster network) on the host.
Sahina: Can you review the patch :-)
Regards,
Ramesh
--
Nicolas ECARNOT
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<p><br>
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<br>
<div class="moz-cite-prefix">On 08/22/2016 11:24 AM, Sahina Bose
wrote:<br>
</div>
<blockquote
cite="mid:CACjzOvfM4kju4oWrpw2Lxbc7Kf3-OU8J2ErkxrgBKmcYEZEh6Q@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Aug 19, 2016 at 6:20 PM,
Nicolas Ecarnot <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:nicolas@ecarnot.net"
target="_blank"><a
class="moz-txt-link-abbreviated"
href="mailto:nicolas@ecarnot.net">nicolas@ecarnot.net</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span
class="">
<div>Le 19/08/2016 à 13:43, Sahina Bose a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr"><span></span><br>
<span> </span>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF"
text="#000000"><span>
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<div> Or are you adding the 3
nodes to your existing
cluster? If so, I suggest you
try adding this to a new
cluster<br>
</div>
</div>
</div>
</div>
</blockquote>
</span> OK, I tried and succeed to create
a new cluster.<br>
In this new cluster, I was ABLE to add the
first new host, using its mgmt DNS name.<br>
This first host still has to have its NICs
configured, and (using Chrome or FF) the
access to the network settings window is
stalling the browser (I tried to restart
even the engine, to no avail). Thus, I can
not setup this first node NICs.<br>
<br>
Thus, I can not add any further host
because oVirt relies on a first host to
validate the further ones.<span><font
color="#888888"><br>
</font></span></div>
</blockquote>
<div><br>
<br>
</div>
<div>Network team should be able to help you
here.<br>
</div>
</div>
<br>
</div>
</div>
</blockquote>
<br>
</span> OK, there were no mean I could continue this way
(browser crash), so I tried and succeed doing so :<br>
- remove the newly created host and cluster<br>
- create a new DATACENTER<br>
- create a new cluster in this DC<br>
- add the first new host : OK<br>
- add the 2 other new hosts : OK<br>
<br>
Now, I can smoothly configure their NICs.<br>
<br>
Doing all this, I saw that oVirt detected there already
was existing gluster cluster and volume, and integrated
it in oVirt.<br>
<br>
Then, I was able to create a new storage domain in this
new DC and cluster, using one of the *gluster* FQDN's
host. It went nicely.<br>
<br>
BUT, when viewing the volume tab and brick details, the
displayed brick names are the host DNS name, and NOT the
host GLUSTER DNS names.<br>
<br>
I'm worrying about this, confirmed by what I read in the
logs :<br>
<br>
2016-08-19 14:46:30,484 WARN
[org.ovirt.engine.core.<wbr>vdsbroker.gluster.<wbr>GlusterVolumesListReturnForXml<wbr>Rpc]
(DefaultQuartzScheduler_<wbr>Worker-100) [107dc2e3]
Could not associate brick
'serv-vm-al04-data.sdis.isere.<wbr>fr:/gluster/data/brick04<br>
' of volume '35026521-e76e-4774-8ddf-<wbr>0a701b9eb40c'
with correct network as no gluster network found in
cluster
'1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30'<br>
2016-08-19 14:46:30,492 WARN
[org.ovirt.engine.core.<wbr>vdsbroker.gluster.<wbr>GlusterVolumesListReturnForXml<wbr>Rpc]
(DefaultQuartzScheduler_<wbr>Worker-100) [107dc2e3]
Could not associate brick
'serv-vm-al05-data.sdis.isere.<wbr>fr:/gluster/data/brick04<br>
' of volume '35026521-e76e-4774-8ddf-<wbr>0a701b9eb40c'
with correct network as no gluster network found in
cluster
'1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30'<br>
2016-08-19 14:46:30,500 WARN
[org.ovirt.engine.core.<wbr>vdsbroker.gluster.<wbr>GlusterVolumesListReturnForXml<wbr>Rpc]
(DefaultQuartzScheduler_<wbr>Worker-100) [107dc2e3]
Could not associate brick
'serv-vm-al06-data.sdis.isere.<wbr>fr:/gluster/data/brick04<br>
' of volume '35026521-e76e-4774-8ddf-<wbr>0a701b9eb40c'
with correct network as no gluster network found in
cluster
'1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30'<br>
<br>
[oVirt shell (connected)]# list clusters<br>
<br>
id : 00000001-0001-0001-0001-<wbr>000000000045<br>
name : cluster51<br>
description: Cluster d'alerte de test<br>
<br>
id : 1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30<br>
name : cluster52<br>
description: Cluster d'alerte de test<br>
<br>
[oVirt shell (connected)]# <br>
<br>
"cluster52" is the recent cluster, and I do have a
dedicated gluster network, marked as gluster network, in
the correct DC and cluster.<br>
The only point is that :<br>
- Each host has its name ("serv-vm-al04") and a second
name for gluster ("serv-vm-al04-data").<br>
- Using blahblahblah-data is correct on a gluster point
of view<br>
- Maybe oVirt is disturb not to be able to ping the
gluster FQDN (not routed) and then throwing this error?<span
class="HOEnZb"><font
color="#888888"><br>
<br>
</font></span></div>
</blockquote>
<div><br>
</div>
<div>We do have a limitation currently that if you use
multiple FQDNs, oVirt cannot associate it to the gluster
brick correctly. This will be a problem only when you try
brick management from oVirt - i.e try to remove or replace
brick from oVirt. For monitoring brick status and
detecting bricks - this is not an issue, and you can
ignore the error in logs.<br>
<br>
</div>
<div>Adding Ramesh who has a patch to fix this .<br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
Patch <a
href="https://gerrit.ovirt.org/#/c/60083/">https://gerrit.ov...
is posted to address this issue. But it will work only if the oVirt
Engine can resolve FQDN <b>'serv-vm-al04-data.xx*'</b> to an IP
address which is mapped to the gluster NIC (NIC with gluster
network) on the host.<br>
<br>
Sahina: Can you review the patch :-)<br>
<br>
Regards,<br>
Ramesh<br>
<br>
<div bgcolor="#FFFFFF"
text="#000000"><wbr></div>
<blockquote
cite="mid:CACjzOvfM4kju4oWrpw2Lxbc7Kf3-OU8J2ErkxrgBKmcYEZEh6Q@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span
class="HOEnZb"><font
color="#888888"> -- <br>
Nicolas ECARNOT<br>
</font></span></div>
</blockquote>
</div>
<br>
</div>
</div>
</blockquote>
<br>
</body>
</html>
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2:33 a.m.
This is a multi-part message in MIME format.
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Le 22/08/2016 à 08:10, Ramesh Nachimuthu a écrit :
> Now, I can smoothly configure their NICs.
>
> Doing all this, I saw that oVirt detected there already was
> existing gluster cluster and volume, and integrated it in oVirt.
>
> Then, I was able to create a new storage domain in this new DC
> and cluster, using one of the *gluster* FQDN's host. It went nicely.
>
> BUT, when viewing the volume tab and brick details, the displayed
> brick names are the host DNS name, and NOT the host GLUSTER DNS
> names.
>
> I'm worrying about this, confirmed by what I read in the logs :
>
> 2016-08-19 14:46:30,484 WARN
> [org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
> (DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not
> associate brick
> 'serv-vm-al04-data.sdis.isere.fr:/gluster/data/brick04
> ' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
> network as no gluster network found in cluster
> '1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
> 2016-08-19 14:46:30,492 WARN
> [org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
> (DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not
> associate brick
> 'serv-vm-al05-data.sdis.isere.fr:/gluster/data/brick04
> ' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
> network as no gluster network found in cluster
> '1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
> 2016-08-19 14:46:30,500 WARN
> [org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturnForXmlRpc]
> (DefaultQuartzScheduler_Worker-100) [107dc2e3] Could not
> associate brick
> 'serv-vm-al06-data.sdis.isere.fr:/gluster/data/brick04
> ' of volume '35026521-e76e-4774-8ddf-0a701b9eb40c' with correct
> network as no gluster network found in cluster
> '1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30'
>
> [oVirt shell (connected)]# list clusters
>
> id : 00000001-0001-0001-0001-000000000045
> name : cluster51
> description: Cluster d'alerte de test
>
> id : 1c8e75a0-af3f-4e97-a8fb-2f7ef3ed9f30
> name : cluster52
> description: Cluster d'alerte de test
>
> [oVirt shell (connected)]#
>
> "cluster52" is the recent cluster, and I do have a dedicated
> gluster network, marked as gluster network, in the correct DC and
> cluster.
> The only point is that :
> - Each host has its name ("serv-vm-al04") and a second name for
> gluster ("serv-vm-al04-data").
> - Using blahblahblah-data is correct on a gluster point of view
> - Maybe oVirt is disturb not to be able to ping the gluster FQDN
> (not routed) and then throwing this error?
>
>
> We do have a limitation currently that if you use multiple FQDNs,
> oVirt cannot associate it to the gluster brick correctly. This will
> be a problem only when you try brick management from oVirt - i.e try
> to remove or replace brick from oVirt. For monitoring brick status
> and detecting bricks - this is not an issue, and you can ignore the
> error in logs.
Hi Sahina and Ramesh,
what you wrote looks a lot the same at what I witnessed ("oVirt cannot
associate it to the gluster brick correctly") : oVirt is trying to
associate, and succeed, but using the host FQDN, and not the host
gluster FQDN.
That leads to a situation where oVirt is seeing the volume correctly
(name, number of bricks), but :
- I can not add nor manage the bricks, as you wrote it
- the size is not reported
- the bricks fqdn are not correct, as we just wrote it.
At present, this is not very disturbing, but one major issue I witnessed
twice was that :
I tried to roughly reboot a host, which at this time was only used as a
gluster node, and was not running any VM.
I saw my complete oVirt DC crash in flames, maybe because of a STONITH
storm (some host were power managed the hard way).
I still have to reproduce this issue and provide you the log files, but
before going further, please tell me if it's worth it on this 3.6.7
setup, or must I first upgrade to 4.xx ?
>
> Adding Ramesh who has a patch to fix this .
Patch https://gerrit.ovirt.org/#/c/60083/ is posted to address this
issue. But it will work only if the oVirt Engine can resolve FQDN
*'serv-vm-al04-data.xx*'* to an IP address which is mapped to the
gluster NIC (NIC with gluster network) on the host.
--
Nicolas ECARNOT
--------------B0702B281B4003762AC9D2BF
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Content-Transfer-Encoding: 8bit
<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">Le 22/08/2016 à 08:10, Ramesh
Nachimuthu a écrit :<br>
</div>
<blockquote
cite="mid:9b03bd60-2542-e51a-7392-a7e76bcc6a56@redhat.com"
type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<br>
<blockquote
cite="mid:CACjzOvfM4kju4oWrpw2Lxbc7Kf3-OU8J2ErkxrgBKmcYEZEh6Q@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Now, I
can
smoothly configure their NICs.<br>
<br>
Doing all this, I saw that oVirt detected there
already was existing gluster cluster and volume, and
integrated it in oVirt.<br>
<br>
Then, I was able to create a new storage domain in
this new DC and cluster, using one of the *gluster*
FQDN's host. It went nicely.<br>
<br>
BUT, when viewing the volume tab and brick details,
the displayed brick names are the host DNS name, and
NOT the host GLUSTER DNS names.<br>
<br>
I'm worrying about this, confirmed by what I read in
the logs :<br>
<br>
2016-08-19 14:46:30,484 WARN
[org.ovirt.engine.core.<wbr>vdsbroker.gluster.<wbr>GlusterVolumesListReturnForXml<wbr>Rpc]
(DefaultQuartzScheduler_<wbr>Worker-100) [107dc2e3]
Could not associate brick
'serv-vm-al04-data.sdis.isere.<wbr>fr:/gluster/data/brick04<br>
' of volume
'35026521-e76e-4774-8ddf-<wbr>0a701b9eb40c'
with correct network as no gluster network found in
cluster
'1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30'<br>
2016-08-19 14:46:30,492 WARN
[org.ovirt.engine.core.<wbr>vdsbroker.gluster.<wbr>GlusterVolumesListReturnForXml<wbr>Rpc]
(DefaultQuartzScheduler_<wbr>Worker-100) [107dc2e3]
Could not associate brick
'serv-vm-al05-data.sdis.isere.<wbr>fr:/gluster/data/brick04<br>
' of volume
'35026521-e76e-4774-8ddf-<wbr>0a701b9eb40c'
with correct network as no gluster network found in
cluster
'1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30'<br>
2016-08-19 14:46:30,500 WARN
[org.ovirt.engine.core.<wbr>vdsbroker.gluster.<wbr>GlusterVolumesListReturnForXml<wbr>Rpc]
(DefaultQuartzScheduler_<wbr>Worker-100) [107dc2e3]
Could not associate brick
'serv-vm-al06-data.sdis.isere.<wbr>fr:/gluster/data/brick04<br>
' of volume
'35026521-e76e-4774-8ddf-<wbr>0a701b9eb40c'
with correct network as no gluster network found in
cluster
'1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30'<br>
<br>
[oVirt shell (connected)]# list clusters<br>
<br>
id : 00000001-0001-0001-0001-<wbr>000000000045<br>
name : cluster51<br>
description: Cluster d'alerte de test<br>
<br>
id : 1c8e75a0-af3f-4e97-a8fb-<wbr>2f7ef3ed9f30<br>
name : cluster52<br>
description: Cluster d'alerte de test<br>
<br>
[oVirt shell (connected)]# <br>
<br>
"cluster52" is the recent cluster, and I do have a
dedicated gluster network, marked as gluster network,
in the correct DC and cluster.<br>
The only point is that :<br>
- Each host has its name ("serv-vm-al04") and a second
name for gluster ("serv-vm-al04-data").<br>
- Using blahblahblah-data is correct on a gluster
point of view<br>
- Maybe oVirt is disturb not to be able to ping the
gluster FQDN (not routed) and then throwing this
error?<span class="HOEnZb"><font
color="#888888"><br>
<br>
</font></span></div>
</blockquote>
<div><br>
</div>
<div>We do have a limitation currently that if you use
multiple FQDNs, oVirt cannot associate it to the gluster
brick correctly. This will be a problem only when you
try brick management from oVirt - i.e try to remove or
replace brick from oVirt. For monitoring brick status
and detecting bricks - this is not an issue, and you can
ignore the error in logs.<br>
</div>
</div>
</div>
</div>
</blockquote>
</blockquote>
<br>
Hi Sahina and Ramesh,<br>
<br>
what you wrote looks a lot the same at what I witnessed ("oVirt
cannot associate it to the gluster brick correctly") : oVirt is
trying to associate, and succeed, but using the host FQDN, and not
the host gluster FQDN.<br>
That leads to a situation where oVirt is seeing the volume correctly
(name, number of bricks), but :<br>
- I can not add nor manage the bricks, as you wrote it<br>
- the size is not reported<br>
- the bricks fqdn are not correct, as we just wrote it.<br>
<br>
At present, this is not very disturbing, but one major issue I
witnessed twice was that :<br>
I tried to roughly reboot a host, which at this time was only used
as a gluster node, and was not running any VM.<br>
I saw my complete oVirt DC crash in flames, maybe because of a
STONITH storm (some host were power managed the hard way).<br>
I still have to reproduce this issue and provide you the log files,
but before going further, please tell me if it's worth it on this
3.6.7 setup, or must I first upgrade to 4.xx ?<br>
<br>
<blockquote
cite="mid:9b03bd60-2542-e51a-7392-a7e76bcc6a56@redhat.com"
type="cite">
<blockquote
cite="mid:CACjzOvfM4kju4oWrpw2Lxbc7Kf3-OU8J2ErkxrgBKmcYEZEh6Q@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<div> <br>
</div>
<div>Adding Ramesh who has a patch to fix this .<br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
Patch <a moz-do-not-send="true"
href="https://gerrit.ovirt.org/#/c/60083/">https://gerrit.ov...
is posted to address this issue. But it will work only if the
oVirt Engine can resolve FQDN <b>'serv-vm-al04-data.xx*'</b> to
an IP address which is mapped to the gluster NIC (NIC with gluster
network) on the host.<br>
</blockquote>
-- <br>
Nicolas ECARNOT<br>
</body>
</html>
--------------B0702B281B4003762AC9D2BF--
3043
days inactive
3312
days old
11 comments
5 participants
participants (5)
-
Ivan Bulatovic -
Nathanaël Blanchet -
Nicolas Ecarnot -
Ramesh Nachimuthu -
Sahina Bose