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NFS ISO domain from hosted-engine VM
by Devin A. Bougie 23 Mar '17

23 Mar '17

Hi, All. Are there any recommendations or best practices WRT whether or not to host an NFS ISO domain from the hosted-engine VM (running the oVirt Engine Appliance)? We have a hosted-engine 4.1.1 cluster up and running, and now just have to decide where to serve the NFS ISO domain from. Many thanks, Devin

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hosted-engine with iscsi storage domain
by Devin A. Bougie 23 Mar '17

23 Mar '17

We have a hosted-engine running on 4.1 with an iSCSI hosted_storage domain, and are able to import the domain. However, we cannot attache the domain to the data center. Just to make sure I'm not missing something basic, does the engine VM need to be able to connect to the iSCSI target itself? In other words, does the iSCSI traffic need to go over the ovirtmgmt bridged network? Currently we have the iSCSI SAN on a separate subnet from ovirtmgmt, so the hosted-engine VM can't directly see the iSCSI storage. Thanks, Devin

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Python-SDK: ovirtsdk4.Connection object autologout?
by nicolas＠devels.es 23 Mar '17

23 Mar '17

Hi, We've recently upgraded from oVirt 4.0.x to 4.1.0 and it seems that the behavior of a script we wrote in Python-SDK has changed slightly. We have a script that needs to be executed forever (daemon mode). This daemon creates an ovirtsdk4.Connection object and uses the same Connection object all the time. conn = sdk.Connection( url=URI, username=USERNAME, password=PASSWORD, ca_file=CAFILE ) Between iterations we have ~5 minutes delays which we accomplish with a time.sleep(...) call. After some of these iterations (5 or 6), when trying to perform an operation on the Connection object (in this case, listing all SDs): try: sys_serv = conn.system_service() sd_serv = sys_serv.storage_domains_service() storages = sd_serv.list(search=sd_search_query) except Error, e: log('ERR: Error getting storage domains: %s' % (e)) We start getting exceptions (i.e., the sd_serv.list() call throwing an Error exception) with this message: ERR: Error getting storage domains: HTTP response code is 401. I believe this has something to do with the Connection object expiring (even if it's not idle more than 5 minutes at any time). Is there a way to "refresh" the Connection object so it doesn't auto-logout (assuming this is the actual problem)? As I said, this started happening as of oVirt 4.1.0. ovirt-engine-sdk-python version is 4.1.1. Any ideas? Thanks.

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ACTION_TYPE_FAILED_NO_SERVERS_FOR_CLUSTER
by Davide Ferrari 23 Mar '17

23 Mar '17

I get this error when I click " Gluster status is disconnected for this host. Restart Glusterd service" in the Genral tab of a the sole host in a new cluster. I've enabled "Manage Gluster" in the cluster options and already created a new gluster volume (via CLI) with bricks only in the hosts that are part of this new cluster. -- Davide Ferrari Senior Systems Engineer

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How to attach Host device to VM ?
by TranceWorldLogic . 23 Mar '17

23 Mar '17

Hi, I have created an LVM device( /dev/myvg/lvm1 ) in Host. I want that device to attach with VM. Can I attach device to VM via vdsClient ? If yes, please provide me example command that I need to run. Thanks, ~Rohit

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Expand an ovirt+glusterfs cluster
by Davide Ferrari 23 Mar '17

23 Mar '17

Hello I have a 4 node oVirt 4.0 cluster running on top of glusterfs volumes, managed by the oVirt cluster (option ticked in the cluster properties) Now, I'm adding several new nodes to this cluster with a better CPU (Broadwell vs Haswell) but now comes the "bad" part. Out of enthusiasm I've already added storage from these new servers to the data volume already present and used by the current cluster. In fact now ovirt has detected new hosts and it's asking me if I want to add these host to the cluster. But there are two problems: 1) I want to create a new, Broadwell cluster 2) I'm using a separate VLAN+domain name for gluster, and oVirt is proposing me to use the gluster (storage) domain names as the new hosts identifier. What are the right steps/actions to take now? It's a running production system. Thanks in advance -- Davide Ferrari Senior Systems Engineer

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ovirt 4.1 - mount recovery iso for failing vm ?
by Ian Neilsen 23 Mar '17

23 Mar '17

Guys I've spent the day reading any and all content on recovering a failing to boot vm under ovirt 4.1 and am finding many cmds are deprecated , old processes no longer work. What is the correct way to mount an iso to perform recovery on a boot partition of a failing VM in oVirt 4.1? vm.conf, virsh, virt-edit, vmhost.xml, vdsClient, new vda, way too many options and no singular right way to do this that works well. -- Ian Neilsen Mobile: 0424 379 762 Linkedin: http://au.linkedin.com/in/ianneilsen Twitter : ineilsen

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how to handle mount options for hosted engine on glusterfs
by /dev/null 23 Mar '17

23 Mar '17

Hi, how do i make the hosted_storage aware of gluster server failure? In --deploy i cannot provide backup-volfile-servers. In /etc/ovirt-hosted-engine/hosted-engine.conf there is an mnt_options line, but i read (https://github.com/oVirt/ovirt-hosted-engine-setup/commit/995c6a65ab897d804…) that this settings get lost during deployment on seconday servers. Is there an official way to deal with that? Should this option be set manualy on all nodes? Thanks! /dev/null -- Diese Nachricht wurde auf Viren und andere gefährliche Inhalte untersucht und ist - aktuelle Virenscanner vorausgesetzt - sauber. For all your IT requirements visit: http://www.transtec.co.uk

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How to set priority for HA VM via Python SDK ?
by TranceWorldLogic . 23 Mar '17

23 Mar '17

Hi, I want to set priority of Highly Available VM as High via python SDK. I provided information as shown below: vm = self.vms_service.add( vm = types.Vm ( high_availability = types.HighAvailability( enabled = True, priority = 1, ), ), ) As see above priority we have to provide as number but in GUI we can choose drop down menu as ("LOW", "MID" and "HIGH"). I wan to set priority as "HIGH", which integer value I have to set in priority ? I tried with 1 and 3 it shows "LOW" in both cases. Please help me. Thanks, ~Rohit

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Interest in contributing to oVirt
by Konrad Djimeli 22 Mar '17

22 Mar '17

Hello, My name is Konrad Djimeli a third year Computer Science Student at the University of Buea, Cameroon. I am interested in contributing to oVirt and I would like to work on the Google Summer of Code project "ovirt4cli". I am very comfortable working with Python and I have experience working with web services like REST. Please I would appreciate any suggestion on how to get started and to better familiarize myself with the project. Thanks Konrad http://djimeli.me/

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