The latest 3.6 engine breaks compatibility with the iso-installed ovirt-node, even the latest snapshot.

The engine now requires qemu ver 2.3 whereas the node is still on 2.1

After updating the engine all my hosts where marked as non operational due to >

2015-10-19 20:23:09,509 WARN [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-62) [36da0975] Correlation ID: 36da0975, Job ID: 44cf7ac9-5fe1-4151-9f6f-f1396124f179, Call Stack: null, Custom Event ID: -1, Message: Host patty.elementary.se does not comply with the cluster AMD_G4 emulated machines. The current cluster compatibility level supports [pc-i440fx-rhel7.2.0, pc-i440fx-2.1, pseries-rhel7.2.0] and the host emulated machines are pc-i440fx-rhel7.1.0,rhel6.3.0,pc-q35-rhel7.0.0,rhel6.1.0,rhel6.6.0,rhel6.2.0,pc,pc-q35-rhel7.1.0,q35,rhel6.4.0,rhel6.0.0,rhel6.5.0,pc-i440fx-rhel7.0.0.

Manually upgrading the qemu-packages, and I was able to bring the hosts back online.


See answer from Mr Tiraboschi sent to the oVirt mailinglist.

<snip>
The issue seams to be in node: the latest engine build requires pc-i440fx-rhel7.2.0 which comes with qemu 2.3 while probably node is still built from centos 7.1 with an older qemu.
For standard el7 host we are releasing it in the oVirt repo ( http://resources.ovirt.org/pub/ovirt-3.6-pre/rpm/el7/x86_64/qemu-kvm-ev-2.3.0-29.1.el7.x86_64.rpm ) but it seams that we didn't included it in node.
</snip>