Upgrade from 4.3.5 to 4.3.10 HE Host issue
by Vrgotic, Marko
Hi oVirt,
Yesterday I upgraded one of my oVIrt platform from 4.3.5 to 4.3.10. Platform has 10Hosts with 3Hosts as Hosts for HA.
Before upgrade, all three Hosts were acknowledged Hosts for HE (little happy crown).
Pre upgrade:
Host1 – HE available host
Host2 – HE current host
Host3 – HE available host
Upgraded first HE to 4.3.10, than started with HE Hosts – post upgrade of Host2, the crown disappeared and did not show up. This happens sometimes, and I usually reinstall the host, than execute HE UNDEPLOY and DEPLOY, which fixes the state.
However, this time, after such actions, the server is still not an acknowledged HE host – no crown. However, if I try to remove it, oVIrt says that looks like HE is deploy on it and need to be removed, but command “hosted-engine –vm-status” says you must deploy first.
I removed the Host, reinstalled the OS on it, deployed it again as new, synced all networks, than deploy once more with HE Deploy, still same issue.
Any suggestions?
-----
kind regards/met vriendelijke groeten
Marko Vrgotic
Sr. System Engineer @ System Administration
ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: m.vrgotic(a)activevideo.com<mailto:m.vrgotic@activevideo.com>
w: www.activevideo.com<http://www.activevideo.com>
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2 years, 2 months
Multipath flapping with SAS via FCP
by Benoit Chatelain
Hi,
I have some troubles with multipath.
When I add SAS disk over FCP as Storage Domain via oVirt WebUI,
The first link as active, but the second is stuck as failed.
Volum disk is provided from Dell Compellent via FCP, and disk is transported in SAS.
multipath is flapping in all hypervisor from the same domain disk:
[root@isildur-adm ~]# tail -f /var/log/messages
Feb 25 11:48:21 isildur-adm kernel: device-mapper: multipath: 253:3: Failing path 8:32.
Feb 25 11:48:24 isildur-adm multipathd[659460]: 36000d31003d5c2000000000000000010: sdc - tur checker reports path is up
Feb 25 11:48:24 isildur-adm multipathd[659460]: 8:32: reinstated
Feb 25 11:48:24 isildur-adm multipathd[659460]: 36000d31003d5c2000000000000000010: remaining active paths: 2
Feb 25 11:48:24 isildur-adm kernel: device-mapper: multipath: 253:3: Reinstating path 8:32.
Feb 25 11:48:24 isildur-adm kernel: sd 1:0:1:2: alua: port group f01c state S non-preferred supports toluSNA
Feb 25 11:48:24 isildur-adm kernel: sd 1:0:1:2: alua: port group f01c state S non-preferred supports toluSNA
Feb 25 11:48:24 isildur-adm kernel: device-mapper: multipath: 253:3: Failing path 8:32.
Feb 25 11:48:25 isildur-adm multipathd[659460]: sdc: mark as failed
Feb 25 11:48:25 isildur-adm multipathd[659460]: 36000d31003d5c2000000000000000010: remaining active paths: 1
---
[root@isildur-adm ~]# multipath -ll
36000d31003d5c2000000000000000010 dm-3 COMPELNT,Compellent Vol
size=1.5T features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
`-+- policy='service-time 0' prio=25 status=active
|- 1:0:0:2 sdb 8:16 active ready running
`- 1:0:1:2 sdc 8:32 failed ready running
---
VDSM generate multipath.conf like this ( I have remove commented lines for read confort ) :
[root@isildur-adm ~]# cat /etc/multipath.conf
# VDSM REVISION 2.0
# This file is managed by vdsm.
defaults {
polling_interval 5
no_path_retry 16
user_friendly_names no
flush_on_last_del yes
fast_io_fail_tmo 5
dev_loss_tmo 30
max_fds 4096
}
blacklist {
protocol "(scsi:adt|scsi:sbp)"
}
no_path_retry 16
}
Have you some idea why this link is flapping on my two hypervisor?
Thanks a lot in advance.
- Benoit Chatelain
2 years, 2 months
How to enable nested virtualization
by miguel.garcia＠toshibagcs.com
Hi all,
We are trying to run virtual box in a vm that is running over ovirt platform. I had followed the instruction to enable nested virtualization on host as described in this document https://ostechnix.com/how-to-enable-nested-virtualization-in-kvm-in-linux/
However I was not able to enable nested virtualization to the vm since nothing is listed from virsh console. Also tryed to edit vm configuration lookig up for "cpu mode" or "copy cpu configuration as host"
Also from oVirt admin portal I had enabled host for nested virtualization through Compute > Host > selected Host > edit > Kernel Nested virtualization checked.
But the host still returns:
$ cat /sys/module/kvm_intel/parameters/nested
N
2 years, 2 months
kvm host becomes non operational after breaking a bonding interface
by LS CHENG
Hi
I have created a couple of bonding interfaces in the administrator portal,
due to some miss configuration I had to break the bond interfaces, what I
observe is that after breaking the bonding interfaces the KVM host becomes
non operational and it stays in such state unless I add the bonding
interfaces back. Anyone have observed this behaviour?
Thanks
2 years, 2 months
2 Node oVirt Cluster
by justin.lamp96＠gmail.com
Hey there,
I tried using oVirt for some time now and like to convert my main Proxmox Cluster (2 Nodes + RPI for Quorum) to oVirt. But I obvioulsy need three servers to do HA. Now I am asking myself: can't I just use the PI as an arbiter node for the Selfhosted-Engine on gluster? I tried running the playbook already, but it's always failing and even if the gluster deployment would go through, it would most likely fail aftwards, right?
Before I waste too much energy and time into that, does anyone of you guys use a 2 node cluster? And no I can't add another node (energy + space + money)!
Also I know with doing that I'm totally on my own etcetera
Thanks!
2 years, 2 months
oVirt4.1 add host error. can i upgrade from 4.1 to 4.4? without updating sequentially 4.1-4.2-4.3-4.4
by grig.4n＠gmail.com
HI!
There is an oVirt 4.1 self-hosted engine cluster of two hosts and a storage connected via iscsi. When trying to add another host, it gives an error: "ERROR otopi.context context._executeMethod:151 Failed to execute stage 'Setup validation': Cannot locate vdsm package, possible cause is incorrect channels". Older hosts on Centos 7.5.1804, last on Centos 7.9.2009. Is it possible to go from 4.1 to 4.4 using the third host as the main one for the transfer?
2 years, 2 months
Cant add vm network with vlan to bonded interface
by murat.celebi＠dbpro.com.tr
Hello,
I am new to ovirt and try to migrate my companies vmware infra to ovirt. The Engine setup went fine without any problems.
These are the steps which I am doing and having problems.
1. Prepare the KVM host by installing the RPM's.
2. Add the kvm host to the engine. Everything is working fine at this point.
3. I am creating a new Network for vm usage named VLAN10. And I am tagging the network with vlan id 10.
4. I am bonding two 25Gb/s interface's with balance-xor mode with the name bond1.
5. When I add the network VLAN10 to the bond1 interface I cant see the logical network assigned to the bond. After this step I am not able to delete the bond since I am getting errors when I try to delete the bond.
Any help would be greatly appreciated.
Thank you
2 years, 2 months
