Enabling Gluster Service
by Maton, Brett
I just enabled the Gluster service in an existing oVirt 7.2.7-1 cluster via
the Web-UI which put all hosts into non-operational status.
Lots of events being created:
Could not find gluster uuid of server host001.local on Cluster testlab.
Could not find gluster uuid of server host002.local on Cluster testlab.
Could not find gluster uuid of server host003.local on Cluster testlab.
and a bunch of failed vm migrations
Is it possible to add glusterfs after ovirt has been installed and
configured?
5 years, 7 months
Host restarting for unknown reasons
by turboaaa＠gmail.com
I have a dual host, self hosted engine, cluster/datacenter. I call these Node1 and Node2. They are running CentOS 7 and I have been running the updates regular by putting each host into maintenance mode and installing the update via the web gui.
Node1 is restarting at odd times, causing VMs on that node to start up on Node2 (which is by design). However the restarts are becoming more frequent and I am having a hard time figuring out what is causing it. Below is a snippet from the /var/log/ovirt-hosted-engine-ha/agent.log on Node1. My current plan is to simply rebuild Node1 by re-installing CentOS 7, and using the cluster tools to import it.
MainThread::INFO::2018-09-10 10:04:25,907::hosted_engine::244::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_get_hostname) Found certificate common name: node1.***.com
MainThread::INFO::2018-09-10 10:04:34,200::hosted_engine::522::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker) Initializing ha-broker connection
MainThread::INFO::2018-09-10 10:04:34,202::brokerlink::77::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor) Starting monitor ping, options {'addr': '192.168.4.1'}
MainThread::ERROR::2018-09-10 10:04:34,203::hosted_engine::538::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker) Failed to start necessary monitors
MainThread::ERROR::2018-09-10 10:04:34,203::agent::144::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 131, in _run_agent
return action(he)
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 55, in action_proper
return he.start_monitoring()
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 413, in start_monitoring
self._initialize_broker()
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 535, in _initialize_broker
m.get('options', {}))
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 83, in start_monitor
.format(type, options, e))
RequestError: Failed to start monitor ping, options {'addr': '192.168.4.1'}: [Errno 2] No such file or directory
MainThread::ERROR::2018-09-10 10:04:34,204::agent::145::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Trying to restart agent
MainThread::INFO::2018-09-10 10:04:34,204::agent::89::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Agent shutting down
MainThread::INFO::2018-09-10 10:04:44,545::agent::67::ovirt_hosted_engine_ha.agent.agent.Agent::(run) ovirt-hosted-engine-ha agent 2.2.16 started
MainThread::INFO::2018-09-10 10:04:44,583::hosted_engine::244::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_get_hostname) Found certificate common name: node1.***.com
MainThread::INFO::2018-09-10 10:04:44,744::hosted_engine::522::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker) Initializing ha-broker connection
MainThread::INFO::2018-09-10 10:04:44,745::brokerlink::77::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor) Starting monitor ping, options {'addr': '192.168.4.1'}
MainThread::ERROR::2018-09-10 10:04:44,746::hosted_engine::538::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker) Failed to start necessary monitors
MainThread::ERROR::2018-09-10 10:04:44,746::agent::144::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 131, in _run_agent
return action(he)
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 55, in action_proper
return he.start_monitoring()
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 413, in start_monitoring
self._initialize_broker()
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 535, in _initialize_broker
m.get('options', {}))
File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 83, in start_monitor
.format(type, options, e))
RequestError: Failed to start monitor ping, options {'addr': '192.168.4.1'}: [Errno 2] No such file or directory
5 years, 7 months
VM Migration
by Budur Nagaraju
Hi ,
Have build oVirt4.2 setup with node4.2 ,while doing a vm migration am
facing issues , below is the attached error.
Can you please help to resolve?
https://pastebin.com/BAzCsbAS
Thanks,
Nagaraju
5 years, 7 months
upgrade 4.2.6 to 4.2.6.1: node status degraded
by femi adegoke
Upgrading one of my oVirt Node hosts from 4.2.6 to 4.2.6.1
The host will not boot, it has the following message:
node status: DEGRADED
Please check the status manually using 'nodectl check'
# nodectl check
Status: FAILED
Bootloader ... FAILED - It looks like there are no valid bootloader entries. Please ensure this is fixed before rebooting.
Layer boot entries ... FAILED - No bootloader entries which point to imgbased layers
**the rest of the message has a bunch of OK entries**
How do I fix this?
5 years, 7 months
Adding arbiter to hyperconverged setup
by Simon Nussbaum
Dear all
We are very happily running a hyperconverged gluster ovirt setup since beginning of 2016. Because we couldn't afford 3 well-equipped servers, we've set-up replica 3 with one arbiter gluster cluster. Back then the gluster integration in oVirt wasn't where it is today. We did not add the arbiter node to oVirt. Since then a lot changed and we suspect that from time to time we run into problems because we haven't added the arbiter node as a host to oVirt. We also think that we may profit from features and higher visibility in oVirt when it is aware of all gluster nodes. Now, we are thinking of adding the third, the arbiter host. Today we are using oVirt 4.2.0.2 and GlusterFS 3.12 on CentOS 7.4. We see two ways to accomplish this:
1) Add it as a new host
2) Import it as the discovered host in Compute >> Clusters >> OurCluster
The questions we have:
* First of all, is this a good idea anyway?
* Do we need to install vdsmd on the arbiter node?
* What is or is there difference between the two ways? Will it discover the gluster configuration or break it?
Before we break it we would love to hear what you guys think.
Thanks a lot
Simon
5 years, 7 months
Ovirt attach serial port on VM
by Alex K
Hi all,
I have a serial port on one of the servers where the guest VM is running.
setserial -g /dev/ttyS0
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
I wanted the serial port to be connected at the VM, so as the VM to be able
to use directly the serial port of the server. Thus I went at host devices
to add the port but I am not able to find it, as the serial port is not
listed at PCI devices.
I recall that on plain KVM one could be able to attach such a serial port
at a guest VM. Has anyone been able to attach a serial port to a guest VM
woth ovirt? (I am running 4.2.5)
Thanx,
Alex
5 years, 7 months
LDAP-Error
by Budur Nagaraju
Hi
Have configured LDAP authentication in oVirt4.2, but unable to login facing
issues below is the error log and configuration, able to search the users
in the UI at same time unable to search the Group.
Can someone help on the same?
Error :
https://pastebin.com/76cZdV7d
Configuration:
https://pastebin.com/nRmibZh7
Thanks,
Nagaraju
5 years, 7 months
migrate ovirt-engine to Self-hosted Engine
by Edoardo Mazza
Hi all,
my enviroment is composed to a standalone ovirt-engine and 3 host.
I would migrate my ovirt-engine to a self-hosted Engine enviroment, but I
don't found any guide for this procedure.
Con you help me?
Thank
5 years, 7 months
New Facebook Group - Virtualization HQ (oVirt, KVM, Xen, Linux HA Clusters)
by Andrei Verovski
Hi,
I just created new Facebook group dedicated to virtualization and
clustering solution(s) based on oVirt, KVM, Xen, Linux HA Clusters.
Everyone here is welcome:
https://www.facebook.com/groups/227612258112186/
Group rules:
Allowed posts: tips and tricks from experts, technical questions and
requests for both volunteer and paid support.
Posts require prior approval:
1) Commercial services offered (only related to this group subject),
with the exception of replies to paid requests for technical support
from other group members.
2) Job offers / job seekers.
3) Sale of hardware owned by group members (not dealers / resellers).
Classifieds from resellers of server hardware - new, used, surplus, and
refurbished may be SOMETIMES allowed with prior approval (without $$$
fee), if represent an exceptional value of interest for group members.
with best regards
Andrei
5 years, 7 months
