- Users - oVirt List Archives

Contributing on ovirt
by shubham dubey 05 Mar '17

05 Mar '17

Hello, I am interested in being part of ovirt for gsoc 2017. I have looked into ovirt project ideas and the project that I find most suitable is Configuring the backup storage in ovirt. Since the ovirt online docs have sufficient info for getting started for development so I don't have a questions about that but I want to clarify one doubt that did the previous year mentioned project on ovirt gsoc page are also available to work on? I will also appreciate any discussion about the project or question from mentor side.Even some guideline for start working is welcome. Thanks, Shubham

2 1

failed to migrate Vm
by Bill James 05 Mar '17

05 Mar '17

I have a hardware node that for whatever reason most of the VM status was "?", even though VM was up and running fine. node was running ovirt 3.6 so I decided to upgrade it to 4.1.0.4-1 like most of the rest of the cluster is, including engine. After upgrade some VMs I'm able to start up fine on the upgraded hosts, other fail to start on that host and migrate themselves to another host. If I try to manually migrate them to the recently upgraded host migration fails. I have yet to find in the logs where it says why they fail. I am able to "runonce" the VM and tell it to start on this host and it starts fine. Why is migration failing? ovirt-engine-4.1.0.4-1.el7.centos.noarch vdsm-4.19.4-1.el7.centos.x86_64 2017-03-04 10:16:51,716-08 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (org.ovirt.thread.pool-7-thread-48) [519095c3-83ed-4478-8dd4-f432db6db140] EVENT_ID: VM_MIGRATION_TO_SERVER_FAILED(120), Correlation ID: 2 6d1ecba-8711-408d-b9d5-6461a4aab4e5, Job ID: 546e0e11-9b4b-48d4-bd50-2f525d049ae2, Call Stack: null, Custom Event ID: -1, Message: Migration failed (VM: *j2es2.test.j2noc.com*, Source: ovirt6.test.j2noc.com, Destination: *ovirt4.test.j2noc.com*) (engine.log attached) Thanks.

2 1

lvscan on rhv host
by Marcin Kruk 04 Mar '17

04 Mar '17

Could somebody give me a links to doc or explain behavior of lv volumes in RHV 4 cluster, once they are active another time they are incative, and how to corelate the lv volumes names with disks of virtual machines, or other disks?

2 1

Staring cluster Hosted Engine stuck - failed liveliness check
by Maton, Brett 04 Mar '17

04 Mar '17

What is the correct way to shut down a cluster ? I shutdown my 4.1 cluster following this guide https://github.com/rharmonson/richtech/wiki/OSVDC-Series:- oVirt-3.6-Cluster-Shutdown-and-Startup as the NAS hosting the nfs mounts needed rebooting after updates. ( I realise the guide is for 3.6, surely not that different ? ) However hosted engine isn't starting now. failed liveliness check I've tried connecting from the host starting the HE vm to see what's going on with: virsh console HostedEngine I don't know what authentication it requires, tried engine admin details and root os... hosted-engine --add-console-password Enter password: no graphics devices configured unsurprisingly, remote-viewer vnc://localhost:5900 fails with Unable to connect to the graphic server vnc://localhost:5900 What can I do next ?

4 10

best way to remove SAN lun
by Gianluca Cecchi 03 Mar '17

03 Mar '17

Hello, currently I have a cluster of 3 hosts where each one has FC SAN connectivity to 4 LUNs: 3 are already configured as storage domains (1TB, 2TB, 4TB), one is free, not allocated. See here for screenshot: https://drive.google.com/file/d/0BwoPbcrMv8mvRVZZMTlNcTQ5MGs/view?usp=shari… At the moment the command "multipath -l" run on hosts shows all the 4 LUNs. Now I want to do 2 things at storage array level: - remove the 2TB storage domain LUN - remove the 20Gb LUN not yet allocated What is the correct workflow, supposing I have already emptied the 2TB from VM disks ad such? Select 2Tb SD, then Datacenter subtab, then "maintenance", detach" and at the end "remove"? I think I continue to see 4 LUNs at this point, correct? Now I proceed with removal of lun at storage array level? Should I select an SD line and then "Scan disks" to see refresh the SAN and see in multipath only 2 of them at the end? Or any manual command at host level before removal from array? Thanks in advance Gianluca

6 13

Hot to force glusterfs to use RDMA?
by Arman Khalatyan 03 Mar '17

03 Mar '17

Hi, Are there way to force the connections over RDMA only? If I check host mounts I cannot see rdma mount option: mount -l| grep gluster 10.10.10.44:/GluReplica on /rhev/data-center/mnt/glusterSD/10.10.10.44:_GluReplica type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072) I have glusterized 3 nodes: GluReplica Volume ID: ee686dfe-203a-4caa-a691-26353460cc48 Volume Type: Replicate (Arbiter) Replica Count: 2 + 1 Number of Bricks: 3 Transport Types: TCP, RDMA Maximum no of snapshots: 256 Capacity: 3.51 TiB total, 190.56 GiB used, 3.33 TiB free

4 7

Unsupported Cluster with oVirt question
by m m 02 Mar '17

02 Mar '17

Hi, I have two questions about an oVirt setup. I have 3 nodes connected to a SAN storage via FC and all VMs are kept in this SAN. From the SAN I have mounted two partitions to each of these nodes and these partitions are in an OCFS2 cluster setup. I am planning to export these partitions and create NFS Domain storage in oVirt. Is there any better way considering this setup? my second question is, in the event that one of the nodes is failing, is there thing I can do to prevent VMs running on that failing node not to fail? Regards

1 0

vm display effect
by qinglong.dong＠horebdata.cn 02 Mar '17

02 Mar '17

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2 2

Updating the notification emails after the hosted-engine is deployed
by Joseph Kelly 02 Mar '17

02 Mar '17

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3 4

About qemu's CPU up to 400-500%
by 张余歌 02 Mar '17

02 Mar '17

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