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NFS Multipathing
by Thomas Letherby 16 Sep '18

16 Sep '18

Hello all, I've been looking around but I've not found anything definitive on whether Ovirt can do NFS Multipathing, and if so how? Does anyone have any good how tos or configuration guides? Thanks, Thomas

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Re: NFS Multipathing
by spfma.tech＠e.mail.fr 14 Sep '18

14 Sep '18

Hi, It should be possible, as oVirt is able to support NFS 4.1 I have a Synology NAS which is also able to support this version of the protocol, but never found time to set this together and test it until now. Reagrds Le 30-Aug-2018 12:16:32 +0200, xrs444(a)xrs444.net a crit: Hello all, I've been looking around but I've not found anything definitive on whether Ovirt can do NFS Multipathing, and if so how? Does anyone have any good how tos or configuration guides? Thanks, Thomas ------------------------------------------------------------------------------------------------- FreeMail powered by mail.fr ------------------------------------------------------------------------------------------------- FreeMail powered by mail.fr

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HowTo trace errors or issues ?
by Sven Achtelik 14 Sep '18

14 Sep '18

Hi All, I would like to understand how to find the point that fails when starting from the Event showing in the GUI. With that event I get an correlation ID and how would I trace all the following tasks, actions or events that are connected to that correlation ID ? Is it something like CorrelationID -> TaskID -> CommandID or how do things connect ? Is there some documentation I could look at ? Thank you, Sven

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HostedEngine disk size not updated after manually extending it
by Pötter, Ulrich 14 Sep '18

14 Sep '18

Hi *, I extended the disk of the hosted engine VM with "vdsm-client" (since it is not possible using the GUI) as follows: 0. login via ssh to host 1. set hosted engine maintenance mode to global 2. shut down vm 3. extend the disk (vdsm-client Volume extendSize ...) 4. start vm 5. set maintenance to none This worked. The VM has now a larger disk and the metadata on the storage domain show the new value (vdsm-client Volume getInfo ... too) Unfortunetaly the virtual size of the disk shown in the oVirt GUI is still the old value. How can I get the engine to update those values? Regards, Ulrich

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Failed to synchronize networks of Provider ovirt-provider-ovn
by Kapetanakis Giannis 14 Sep '18

14 Sep '18

Hi, After upgrading to 4.2.1 I have problems with ovn provider. I'm getting "Failed to synchronize networks of Provider ovirt-provider-ovn." I use custom SSL certificate in apache and I guess this is the reason. I've tried to update ovirt-provider-ovn.conf with [OVIRT] #ovirt-ca-file=/etc/pki/ovirt-engine/ca.pem ovirt-ca-file=/etc/pki/ovirt-engine/apache-ca.pem but still no go Any tips on this? thanks G

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Gluster Issues
by Endre Karlson 14 Sep '18

14 Sep '18

Hi, we are seeing some issues where our hosts oom kill glusterd after a while but there's plenty of memory? Running Centos 7,4.x and Ovirt 4.2.x

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Re: Unable to start VM - Image is not a legal chain
by Yedidyah Bar David 14 Sep '18

14 Sep '18

(Changing subject, adding Freddy) On Tue, Jul 10, 2018 at 8:06 PM, Alex K <rightkicktech(a)gmail.com> wrote: > Hi all, > > I did a routine maintenance today (updating the hosts) to ovirt cluster > (4.2) and I have one VM that was complaining about an invalid snapshot. > After shutdown of VM the VM is not able to start again, giving the error: > > VM Gitlab is down with error. Exit message: Bad volume specification > {'serial': 'b6af2856-a164-484a-afe5-9836bbdd14e8', 'index': 0, 'iface': > 'virtio', 'apparentsize': '51838976', 'specParams': {}, 'cache': 'none', > 'imageID': 'b6af2856-a164-484a-afe5-9836bbdd14e8', 'truesize': > '52011008', 'type': 'disk', 'domainID': '142bbde6-ef9d-4a52-b9da-2de533c1f1bd', > 'reqsize': '0', 'format': 'cow', 'poolID': '00000001-0001-0001-0001-000000000311', > 'device': 'disk', 'path': '/rhev/data-center/00000001- > 0001-0001-0001-000000000311/142bbde6-ef9d-4a52-b9da- > 2de533c1f1bd/images/b6af2856-a164-484a-afe5-9836bbdd14e8/ > f3125f62-c909-472f-919c-844e0b8c156d', 'propagateErrors': 'off', 'name': > 'vda', 'bootOrder': '1', 'volumeID': 'f3125f62-c909-472f-919c-844e0b8c156d', > 'diskType': 'file', 'alias': 'ua-b6af2856-a164-484a-afe5-9836bbdd14e8', > 'discard': False}. > > I see also the following error: > > VDSM command CopyImageVDS failed: Image is not a legal chain: > (u'b6af2856-a164-484a-afe5-9836bbdd14e8',) > This error appears a few more times in the list's archive, all of which seem to be related to rather-old bugs (3.5/3.6 times) or storage problems. I assume you use 4.2. Are you sure the corruption happened only now? Did working with snapshots worked well before the upgrade? > > Seems as a corrupt VM disk? > Seems so to me, but I am not a storage expert. > > The VM had 3 snapshots. I was able to delete one from GUI then am not able > to delete the other two as the task fails. Generally I am not allowed to > clone, export or do sth to the VM. > > > Have you encountered sth similar. Any advice? > The lastest post, from 2016, included a workaround, you might (very carefully!) try that. I suggest to also open a bug and attach all relevant logs (engine, vdsm from all relevant hosts, including SPMs at time of snapshot operations and any other host that ran the VM), and try to give accurate reproduction steps. Best regards, -- Didi

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oVirt + gluster with JBOD
by Eduardo Mayoral 14 Sep '18

14 Sep '18

Hi! I am thinking about using some spare servers I have for a hyperconverged oVirt + gluster. Only problem with these servers is that the RAID card is not specially good, so I am considering using gluster in a JBOD configuration. JBOD is supported for recent versions of gluster, but I am not sure if this configuration is supported by oVirt, or if there are any special considerations I should take into account. Anyone running oVirt + gluster with JBOD who can comment on this? Thanks! -- Eduardo Mayoral.

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Error : ovirt Configuring an External LDAP Provider
by mustafa.taha.mu95＠gmail.com 13 Sep '18

13 Sep '18

i configure ovirt with self-host , and i want then to configure an external LDAP provider i follow the step in this link https://www.ovirt.org/documentation/admin-guide/chap-Users_and_Roles/ but this following error appear when i true to login: Enter user name: 'uid=u003,ou=users,dc=exalt,dc=ps Enter user password: 2018-09-13 14:45:00,538+03 INFO ======================================================================== 2018-09-13 14:45:00,538+03 INFO ============================== Execution =============================== 2018-09-13 14:45:00,538+03 INFO ======================================================================== 2018-09-13 14:45:00,538+03 INFO Iteration: 0 2018-09-13 14:45:00,539+03 INFO Profile='ldap23.exalt.ps' authn='ldap23.exalt.ps-authn' authz='ldap23.exalt.ps-authz' mapping='null' 2018-09-13 14:45:00,539+03 INFO API: -->Authn.InvokeCommands.AUTHENTICATE_CREDENTIALS profile='ldap23.exalt.ps' user='uid=u003,ou=users,dc=exalt,dc=ps' 2018-09-13 14:45:00,560+03 INFO API: <--Authn.InvokeCommands.AUTHENTICATE_CREDENTIALS profile='ldap23.exalt.ps' result=CREDENTIALS_INVALID 2018-09-13 14:45:00,564+03 SEVERE Authn.Result code is: CREDENTIALS_INVALID [ ERROR ] Login sequence failed Please investigate details of the failure (search for lines containing SEVERE log level). can anybody help ?

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Install oVirt node without Internet repository
by G, Maghesh Kumar (Nokia - IN/Bangalore) 13 Sep '18

13 Sep '18

--_000_HE1PR0702MB3532EC34365D995765A2B7D783A60HE1PR0702MB3532_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Description of problem: Cannot add host - install fails & Install oVirt node without Internet repos= itory Version: Ovirt-4.2 Host is installed with RHEL 7.4 Actual results: Host KVM02 installation failed. Command returned failure code 1 during SSH = session 'root(a)192.175.2.231<mailto:root@192.175.2.231>' I found that right now on my oVirt Nodes in my test environment does not NO= T connect to the internet... Basically, i need the offline repository to access from oVirt nodes without= Internet access. Please guide us how to proceed Regards, Maghesh --_000_HE1PR0702MB3532EC34365D995765A2B7D783A60HE1PR0702MB3532_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"EN-IN" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> Hi<o:p></o:p></span= > <o:p> </o:p> <pre>Description of problem:<o= :p></o:p></pre> <pre>Cannot add host - install= fails & Install oVirt node without Internet repository<o:p></o:p></spa= n></pre> <pre><o:p> </o:p><= /pre> <pre>Version: Ovirt-4.2<o:p></= o:p></pre> <pre>Host is installed with RH= EL 7.4<o:p></o:p></pre> <pre><o:p> </o:p><= /pre> <pre>Actual results:<o:p></o:p= ></pre> <pre>Host KVM02 installation f= ailed. Command returned failure code 1 during SSH session '<a href=3D"mailt= o:root@192.175.2.231">root(a)192.175.2.231</spa= n></a>'<o:p></o:p></pre> <o:p> </o:p> I found that right = now on my oVirt Nodes in my test environment does not NOT connect to the internet... <o:p></o:p> Basically, i need t= he offline repository to access from oVirt nodes without Internet access.<o= :p></o:p> <o:p> </o:p></= span> Please guide us how= to proceed<o:p></o:p> <o:p> </o:p></= span> Regards,<o:p></o:p>= Maghesh<o:p></o:p><= /span> <o:p> </o:p> </div> </body> </html> --_000_HE1PR0702MB3532EC34365D995765A2B7D783A60HE1PR0702MB3532_--

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