Jim -
result of this test...engine crashed but all VM's on the gluster domain
(backed by the same physical nodes/hardware/gluster process/etc) stayed up
fine
I guess there is some functional difference between 'backupvolfile-server'
and 'backup-volfile-servers'?
Perhaps try latter and see what happens. My next test is going to be to
configure hosted-engine.conf with backupvolfile-server=node2:node3 and see
if engine VM still shuts down. Seems odd engine VM would shut itself down
(or vdsm would shut it down) but not other VMs. Perhaps built in HA
functionality of sorts
On Fri, Sep 1, 2017 at 7:38 PM, Charles Kozler <ckozleriii(a)gmail.com> wrote:
Jim -
One thing I noticed is that, by accident, I used
'backupvolfile-server=node2:node3' which is apparently a supported
setting. It would appear, by reading the man page of mount.glusterfs, the
syntax is slightly different. not sure if my setting being different has
different impacts
hosted-engine.conf:
# cat /etc/ovirt-hosted-engine/hosted-engine.conf | grep -i option
mnt_options=backup-volfile-servers=node2:node3
And for my datatest gluster domain I have:
backupvolfile-server=node2:node3
I am now curious what happens when I move everything to node1 and drop
node2
To that end, will follow up with that test
On Fri, Sep 1, 2017 at 7:20 PM, Charles Kozler <ckozleriii(a)gmail.com>
wrote:
> Jim -
>
> here is my test:
>
> - All VM's on node2: hosted engine and 1 test VM
> - Test VM on gluster storage domain (with mount options set)
> - hosted engine is on gluster as well, with settings persisted to
> hosted-engine.conf for backupvol
>
> All VM's stayed up. Nothing in dmesg of the test vm indicating a pause or
> an issue or anything
>
> However, what I did notice during this, is my /datatest volume doesnt
> have quorum set. So I will set that now and report back what happens
>
> # gluster volume info datatest
>
> Volume Name: datatest
> Type: Replicate
> Volume ID: 229c25f9-405e-4fe7-b008-1d3aea065069
> Status: Started
> Snapshot Count: 0
> Number of Bricks: 1 x 3 = 3
> Transport-type: tcp
> Bricks:
> Brick1: node1:/gluster/data/datatest/brick1
> Brick2: node2:/gluster/data/datatest/brick1
> Brick3: node3:/gluster/data/datatest/brick1
> Options Reconfigured:
> transport.address-family: inet
> nfs.disable: on
>
> Perhaps quorum may be more trouble than its worth when you have 3 nodes
> and/or 2 nodes + arbiter?
>
> Since I am keeping my 3rd node out of ovirt, I am more content on keeping
> it as a warm spare if I **had** to swap it in to ovirt cluster, but keeps
> my storage 100% quorum
>
> On Fri, Sep 1, 2017 at 5:18 PM, Jim Kusznir <jim(a)palousetech.com> wrote:
>
>> I can confirm that I did set it up manually, and I did specify
>> backupvol, and in the "manage domain" storage settings, I do have
under
>> mount options, backup-volfile-servers=192.168.8.12:192.168.8.13 (and
>> this was done at initial install time).
>>
>> The "used managed gluster" checkbox is NOT checked, and if I check it
>> and save settings, next time I go in it is not checked.
>>
>> --Jim
>>
>> On Fri, Sep 1, 2017 at 2:08 PM, Charles Kozler <ckozleriii(a)gmail.com>
>> wrote:
>>
>>> @ Jim - here is my setup which I will test in a few (brand new cluster)
>>> and report back what I found in my tests
>>>
>>> - 3x servers direct connected via 10Gb
>>> - 2 of those 3 setup in ovirt as hosts
>>> - Hosted engine
>>> - Gluster replica 3 (no arbiter) for all volumes
>>> - 1x engine volume gluster replica 3 manually configured (not using
>>> ovirt managed gluster)
>>> - 1x datatest volume (20gb) replica 3 manually configured (not using
>>> ovirt managed gluster)
>>> - 1x nfstest domain served from some other server in my infrastructure
>>> which, at the time of my original testing, was master domain
>>>
>>> I tested this earlier and all VMs stayed online. However, ovirt cluster
>>> reported DC/cluster down, all VM's stayed up
>>>
>>> As I am now typing this, can you confirm you setup your gluster storage
>>> domain with backupvol? Also, confirm you updated hosted-engine.conf with
>>> backupvol mount option as well?
>>>
>>> On Fri, Sep 1, 2017 at 4:22 PM, Jim Kusznir <jim(a)palousetech.com>
>>> wrote:
>>>
>>>> So, after reading the first document twice and the 2nd link thoroughly
>>>> once, I believe that the arbitrator volume should be sufficient and
count
>>>> for replica / split brain. EG, if any one full replica is down, and the
>>>> arbitrator and the other replica is up, then it should have quorum and
all
>>>> should be good.
>>>>
>>>> I think my underlying problem has to do more with config than the
>>>> replica state. That said, I did size the drive on my 3rd node planning
to
>>>> have an identical copy of all data on it, so I'm still not opposed
to
>>>> making it a full replica.
>>>>
>>>> Did I miss something here?
>>>>
>>>> Thanks!
>>>>
>>>> On Fri, Sep 1, 2017 at 11:59 AM, Charles Kozler
<ckozleriii(a)gmail.com>
>>>> wrote:
>>>>
>>>>> These can get a little confusing but this explains it best:
>>>>>
https://gluster.readthedocs.io/en/latest/Administrator
>>>>> %20Guide/arbiter-volumes-and-quorum/#replica-2-and-replica-3-volumes
>>>>>
>>>>> Basically in the first paragraph they are explaining why you cant
>>>>> have HA with quorum for 2 nodes. Here is another overview doc that
explains
>>>>> some more
>>>>>
>>>>>
http://openmymind.net/Does-My-Replica-Set-Need-An-Arbiter/
>>>>>
>>>>> From my understanding arbiter is good for resolving split brains.
>>>>> Quorum and arbiter are two different things though quorum is a
mechanism to
>>>>> help you **avoid** split brain and the arbiter is to help gluster
resolve
>>>>> split brain by voting and other internal mechanics (as outlined in
link 1).
>>>>> How did you create the volume exactly - what command? It looks to me
like
>>>>> you created it with 'gluster volume create replica 2 arbiter 1
{....}' per
>>>>> your earlier mention of "replica 2 arbiter 1". That being
said, if you did
>>>>> that and then setup quorum in the volume configuration, this would
cause
>>>>> your gluster to halt up since quorum was lost (as you saw until you
>>>>> recovered node 1)
>>>>>
>>>>> As you can see from the docs, there is still a corner case for
>>>>> getting in to split brain with replica 3, which again, is where
arbiter
>>>>> would help gluster resolve it
>>>>>
>>>>> I need to amend my previous statement: I was told that arbiter
volume
>>>>> does not store data, only metadata. I cannot find anything in the
docs
>>>>> backing this up however it would make sense for it to be. That being
said,
>>>>> in my setup, I would not include my arbiter or my third node in my
ovirt VM
>>>>> cluster component. I would keep it completely separate
>>>>>
>>>>>
>>>>> On Fri, Sep 1, 2017 at 2:46 PM, Jim Kusznir
<jim(a)palousetech.com>
>>>>> wrote:
>>>>>
>>>>>> I'm now also confused as to what the point of an arbiter is /
what
>>>>>> it does / why one would use it.
>>>>>>
>>>>>> On Fri, Sep 1, 2017 at 11:44 AM, Jim Kusznir
<jim(a)palousetech.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Thanks for the help!
>>>>>>>
>>>>>>> Here's my gluster volume info for the data export/brick
(I have 3:
>>>>>>> data, engine, and iso, but they're all configured the
same):
>>>>>>>
>>>>>>> Volume Name: data
>>>>>>> Type: Replicate
>>>>>>> Volume ID: e670c488-ac16-4dd1-8bd3-e43b2e42cc59
>>>>>>> Status: Started
>>>>>>> Snapshot Count: 0
>>>>>>> Number of Bricks: 1 x (2 + 1) = 3
>>>>>>> Transport-type: tcp
>>>>>>> Bricks:
>>>>>>> Brick1: ovirt1.nwfiber.com:/gluster/brick2/data
>>>>>>> Brick2: ovirt2.nwfiber.com:/gluster/brick2/data
>>>>>>> Brick3: ovirt3.nwfiber.com:/gluster/brick2/data (arbiter)
>>>>>>> Options Reconfigured:
>>>>>>> performance.strict-o-direct: on
>>>>>>> nfs.disable: on
>>>>>>> user.cifs: off
>>>>>>> network.ping-timeout: 30
>>>>>>> cluster.shd-max-threads: 8
>>>>>>> cluster.shd-wait-qlength: 10000
>>>>>>> cluster.locking-scheme: granular
>>>>>>> cluster.data-self-heal-algorithm: full
>>>>>>> performance.low-prio-threads: 32
>>>>>>> features.shard-block-size: 512MB
>>>>>>> features.shard: on
>>>>>>> storage.owner-gid: 36
>>>>>>> storage.owner-uid: 36
>>>>>>> cluster.server-quorum-type: server
>>>>>>> cluster.quorum-type: auto
>>>>>>> network.remote-dio: enable
>>>>>>> cluster.eager-lock: enable
>>>>>>> performance.stat-prefetch: off
>>>>>>> performance.io-cache: off
>>>>>>> performance.read-ahead: off
>>>>>>> performance.quick-read: off
>>>>>>> performance.readdir-ahead: on
>>>>>>> server.allow-insecure: on
>>>>>>> [root@ovirt1 ~]#
>>>>>>>
>>>>>>>
>>>>>>> all 3 of my brick nodes ARE also members of the
virtualization
>>>>>>> cluster (including ovirt3). How can I convert it into a full
replica
>>>>>>> instead of just an arbiter?
>>>>>>>
>>>>>>> Thanks!
>>>>>>> --Jim
>>>>>>>
>>>>>>> On Fri, Sep 1, 2017 at 9:09 AM, Charles Kozler <
>>>>>>> ckozleriii(a)gmail.com> wrote:
>>>>>>>
>>>>>>>> @Kasturi - Looks good now. Cluster showed down for a
moment but
>>>>>>>> VM's stayed up in their appropriate places. Thanks!
>>>>>>>>
>>>>>>>> < Anyone on this list please feel free to correct my
response to
>>>>>>>> Jim if its wrong>
>>>>>>>>
>>>>>>>> @ Jim - If you can share your gluster volume info /
status I can
>>>>>>>> confirm (to the best of my knowledge). From my
understanding, If you setup
>>>>>>>> the volume with something like 'gluster volume set
<vol> group virt' this
>>>>>>>> will configure some quorum options as well, Ex:
>>>>>>>>
http://i.imgur.com/Mya4N5o.png
>>>>>>>>
>>>>>>>> While, yes, you are configured for arbiter node
you're still
>>>>>>>> losing quorum by dropping from 2 -> 1. You would need
4 node with 1 being
>>>>>>>> arbiter to configure quorum which is in effect 3 writable
nodes and 1
>>>>>>>> arbiter. If one gluster node drops, you still have 2 up.
Although in this
>>>>>>>> case, you probably wouldnt need arbiter at all
>>>>>>>>
>>>>>>>> If you are configured, you can drop quorum settings and
just let
>>>>>>>> arbiter run since you're not using arbiter node in
your VM cluster part (I
>>>>>>>> believe), just storage cluster part. When using quorum,
you need > 50% of
>>>>>>>> the cluster being up at one time. Since you have 3 nodes
with 1 arbiter,
>>>>>>>> you're actually losing 1/2 which == 50 which ==
degraded / hindered gluster
>>>>>>>>
>>>>>>>> Again, this is to the best of my knowledge based on other
quorum
>>>>>>>> backed software....and this is what I understand from
testing with gluster
>>>>>>>> and ovirt thus far
>>>>>>>>
>>>>>>>> On Fri, Sep 1, 2017 at 11:53 AM, Jim Kusznir
<jim(a)palousetech.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Huh...Ok., how do I convert the arbitrar to full
replica, then?
>>>>>>>>> I was misinformed when I created this setup. I
thought the arbitrator held
>>>>>>>>> enough metadata that it could validate or refudiate
any one replica (kinda
>>>>>>>>> like the parity drive for a RAID-4 array). I was
also under the impression
>>>>>>>>> that one replica + Arbitrator is enough to keep the
array online and
>>>>>>>>> functional.
>>>>>>>>>
>>>>>>>>> --Jim
>>>>>>>>>
>>>>>>>>> On Fri, Sep 1, 2017 at 5:22 AM, Charles Kozler <
>>>>>>>>> ckozleriii(a)gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> @ Jim - you have only two data volumes and lost
quorum.
>>>>>>>>>> Arbitrator only stores metadata, no actual files.
So yes, you were running
>>>>>>>>>> in degraded mode so some operations were
hindered.
>>>>>>>>>>
>>>>>>>>>> @ Sahina - Yes, this actually worked fine for me
once I did
>>>>>>>>>> that. However, the issue I am still facing, is
when I go to create a new
>>>>>>>>>> gluster storage domain (replica 3,
hyperconverged) and I tell it "Host to
>>>>>>>>>> use" and I select that host. If I fail that
host, all VMs halt. I do not
>>>>>>>>>> recall this in 3.6 or early 4.0. This to me makes
it seem like this is
>>>>>>>>>> "pinning" a node to a volume and vice
versa like you could, for instance,
>>>>>>>>>> for a singular hyperconverged to ex: export a
local disk via NFS and then
>>>>>>>>>> mount it via ovirt domain. But of course, this
has its caveats. To that
>>>>>>>>>> end, I am using gluster replica 3, when
configuring it I say "host to use:
>>>>>>>>>> " node 1, then in the connection details I
give it node1:/data. I fail
>>>>>>>>>> node1, all VMs halt. Did I miss something?
>>>>>>>>>>
>>>>>>>>>> On Fri, Sep 1, 2017 at 2:13 AM, Sahina Bose
<sabose(a)redhat.com>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> To the OP question, when you set up a gluster
storage domain,
>>>>>>>>>>> you need to specify
backup-volfile-servers=<server2>:<server3>
>>>>>>>>>>> where server2 and server3 also have bricks
running. When server1 is down,
>>>>>>>>>>> and the volume is mounted again - server2 or
server3 are queried to get the
>>>>>>>>>>> gluster volfiles.
>>>>>>>>>>>
>>>>>>>>>>> @Jim, if this does not work, are you using
4.1.5 build with
>>>>>>>>>>> libgfapi access? If not, please provide the
vdsm and gluster mount logs to
>>>>>>>>>>> analyse
>>>>>>>>>>>
>>>>>>>>>>> If VMs go to paused state - this could mean
the storage is not
>>>>>>>>>>> available. You can check "gluster volume
status <volname>" to see if
>>>>>>>>>>> atleast 2 bricks are running.
>>>>>>>>>>>
>>>>>>>>>>> On Fri, Sep 1, 2017 at 11:31 AM, Johan
Bernhardsson <
>>>>>>>>>>> johan(a)kafit.se> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> If gluster drops in quorum so that it has
less votes than it
>>>>>>>>>>>> should it will stop file operations until
quorum is back to normal.If i
>>>>>>>>>>>> rember it right you need two bricks to
write for quorum to be met and that
>>>>>>>>>>>> the arbiter only is a vote to avoid split
brain.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Basically what you have is a raid5
solution without a spare.
>>>>>>>>>>>> And when one disk dies it will run in
degraded mode. And some raid systems
>>>>>>>>>>>> will stop the raid until you have removed
the disk or forced it to run
>>>>>>>>>>>> anyway.
>>>>>>>>>>>>
>>>>>>>>>>>> You can read up on it here:
https://gluster.readthed
>>>>>>>>>>>>
ocs.io/en/latest/Administrator%20Guide/arbiter-volumes-and-q
>>>>>>>>>>>> uorum/
>>>>>>>>>>>>
>>>>>>>>>>>> /Johan
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, 2017-08-31 at 22:33 -0700, Jim
Kusznir wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Hi all:
>>>>>>>>>>>>
>>>>>>>>>>>> Sorry to hijack the thread, but I was
about to start
>>>>>>>>>>>> essentially the same thread.
>>>>>>>>>>>>
>>>>>>>>>>>> I have a 3 node cluster, all three are
hosts and gluster nodes
>>>>>>>>>>>> (replica 2 + arbitrar). I DO have the
mnt_options=backup-volfile-servers=
>>>>>>>>>>>> set:
>>>>>>>>>>>>
>>>>>>>>>>>> storage=192.168.8.11:/engine
>>>>>>>>>>>>
mnt_options=backup-volfile-servers=192.168.8.12:192.168.8.13
>>>>>>>>>>>>
>>>>>>>>>>>> I had an issue today where 192.168.8.11
went down. ALL VMs
>>>>>>>>>>>> immediately paused, including the engine
(all VMs were running on
>>>>>>>>>>>> host2:192.168.8.12). I couldn't get
any gluster stuff working until host1
>>>>>>>>>>>> (192.168.8.11) was restored.
>>>>>>>>>>>>
>>>>>>>>>>>> What's wrong / what did I miss?
>>>>>>>>>>>>
>>>>>>>>>>>> (this was set up "manually"
through the article on setting up
>>>>>>>>>>>> self-hosted gluster cluster back when 4.0
was new..I've upgraded it to 4.1
>>>>>>>>>>>> since).
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks!
>>>>>>>>>>>> --Jim
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, Aug 31, 2017 at 12:31 PM, Charles
Kozler <
>>>>>>>>>>>> ckozleriii(a)gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Typo..."Set it up and then failed
that **HOST**"
>>>>>>>>>>>>
>>>>>>>>>>>> And upon that host going down, the
storage domain went down. I
>>>>>>>>>>>> only have hosted storage domain and this
new one - is this why the DC went
>>>>>>>>>>>> down and no SPM could be elected?
>>>>>>>>>>>>
>>>>>>>>>>>> I dont recall this working this way in
early 4.0 or 3.6
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, Aug 31, 2017 at 3:30 PM, Charles
Kozler <
>>>>>>>>>>>> ckozleriii(a)gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> So I've tested this today and I
failed a node. Specifically, I
>>>>>>>>>>>> setup a glusterfs domain and selected
"host to use: node1". Set it up and
>>>>>>>>>>>> then failed that VM
>>>>>>>>>>>>
>>>>>>>>>>>> However, this did not work and the
datacenter went down. My
>>>>>>>>>>>> engine stayed up, however, it seems
configuring a domain to pin to a host
>>>>>>>>>>>> to use will obviously cause it to fail
>>>>>>>>>>>>
>>>>>>>>>>>> This seems counter-intuitive to the point
of glusterfs or any
>>>>>>>>>>>> redundant storage. If a single host has
to be tied to its function, this
>>>>>>>>>>>> introduces a single point of failure
>>>>>>>>>>>>
>>>>>>>>>>>> Am I missing something obvious?
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, Aug 31, 2017 at 9:43 AM, Kasturi
Narra <
>>>>>>>>>>>> knarra(a)redhat.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> yes, right. What you can do is edit the
hosted-engine.conf
>>>>>>>>>>>> file and there is a parameter as shown
below [1] and replace h2 and h3 with
>>>>>>>>>>>> your second and third storage servers.
Then you will need to restart
>>>>>>>>>>>> ovirt-ha-agent and ovirt-ha-broker
services in all the nodes .
>>>>>>>>>>>>
>>>>>>>>>>>> [1]
'mnt_options=backup-volfile-servers=<h2>:<h3>'
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, Aug 31, 2017 at 5:54 PM, Charles
Kozler <
>>>>>>>>>>>> ckozleriii(a)gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Hi Kasturi -
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks for feedback
>>>>>>>>>>>>
>>>>>>>>>>>> > If cockpit+gdeploy plugin would be
have been used then that
>>>>>>>>>>>> would have automatically detected
glusterfs replica 3 volume created during
>>>>>>>>>>>> Hosted Engine deployment and this
question would not have been asked
>>>>>>>>>>>>
>>>>>>>>>>>> Actually, doing hosted-engine --deploy it
too also auto
>>>>>>>>>>>> detects glusterfs. I know glusterfs fuse
client has the ability to
>>>>>>>>>>>> failover between all nodes in cluster,
but I am still curious given the
>>>>>>>>>>>> fact that I see in ovirt config
node1:/engine (being node1 I set it to in
>>>>>>>>>>>> hosted-engine --deploy). So my concern
was to ensure and find out exactly
>>>>>>>>>>>> how engine works when one node goes away
and the fuse client moves over to
>>>>>>>>>>>> the other node in the gluster cluster
>>>>>>>>>>>>
>>>>>>>>>>>> But you did somewhat answer my question,
the answer seems to
>>>>>>>>>>>> be no (as default) and I will have to use
hosted-engine.conf and change the
>>>>>>>>>>>> parameter as you list
>>>>>>>>>>>>
>>>>>>>>>>>> So I need to do something manual to
create HA for engine on
>>>>>>>>>>>> gluster? Yes?
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks so much!
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, Aug 31, 2017 at 3:03 AM, Kasturi
Narra <
>>>>>>>>>>>> knarra(a)redhat.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Hi,
>>>>>>>>>>>>
>>>>>>>>>>>> During Hosted Engine setup question
about glusterfs volume
>>>>>>>>>>>> is being asked because you have setup the
volumes yourself. If
>>>>>>>>>>>> cockpit+gdeploy plugin would be have been
used then that would have
>>>>>>>>>>>> automatically detected glusterfs replica
3 volume created during Hosted
>>>>>>>>>>>> Engine deployment and this question would
not have been asked.
>>>>>>>>>>>>
>>>>>>>>>>>> During new storage domain creation
when glusterfs is
>>>>>>>>>>>> selected there is a feature called
'use managed gluster volumes' and upon
>>>>>>>>>>>> checking this all glusterfs volumes
managed will be listed and you could
>>>>>>>>>>>> choose the volume of your choice from the
dropdown list.
>>>>>>>>>>>>
>>>>>>>>>>>> There is a conf file called
/etc/hosted-engine/hosted-engine.conf
>>>>>>>>>>>> where there is a parameter called
backup-volfile-servers="h1:h2" and if one
>>>>>>>>>>>> of the gluster node goes down engine uses
this parameter to provide ha /
>>>>>>>>>>>> failover.
>>>>>>>>>>>>
>>>>>>>>>>>> Hope this helps !!
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks
>>>>>>>>>>>> kasturi
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Wed, Aug 30, 2017 at 8:09 PM, Charles
Kozler <
>>>>>>>>>>>> ckozleriii(a)gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Hello -
>>>>>>>>>>>>
>>>>>>>>>>>> I have successfully created a
hyperconverged hosted engine
>>>>>>>>>>>> setup consisting of 3 nodes - 2 for
VM's and the third purely for storage.
>>>>>>>>>>>> I manually configured it all, did not use
ovirt node or anything. Built the
>>>>>>>>>>>> gluster volumes myself
>>>>>>>>>>>>
>>>>>>>>>>>> However, I noticed that when setting up
the hosted engine and
>>>>>>>>>>>> even when adding a new storage domain
with glusterfs type, it still asks
>>>>>>>>>>>> for hostname:/volumename
>>>>>>>>>>>>
>>>>>>>>>>>> This leads me to believe that if that one
node goes down (ex:
>>>>>>>>>>>> node1:/data), then ovirt engine wont be
able to communicate with that
>>>>>>>>>>>> volume because its trying to reach it on
node 1 and thus, go down
>>>>>>>>>>>>
>>>>>>>>>>>> I know glusterfs fuse client can connect
to all nodes to
>>>>>>>>>>>> provide failover/ha but how does the
engine handle this?
>>>>>>>>>>>>
>>>>>>>>>>>>
_______________________________________________
>>>>>>>>>>>> Users mailing list
>>>>>>>>>>>> Users(a)ovirt.org
>>>>>>>>>>>>
http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
_______________________________________________
>>>>>>>>>>>> Users mailing list
>>>>>>>>>>>> Users(a)ovirt.org
>>>>>>>>>>>>
http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
_______________________________________________
>>>>>>>>>>>> Users mailing
listUsers@ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
_______________________________________________
>>>>>>>>>>>> Users mailing list
>>>>>>>>>>>> Users(a)ovirt.org
>>>>>>>>>>>>
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>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Users mailing list
>>>>>>>>>> Users(a)ovirt.org
>>>>>>>>>>
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>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>