This document lists the main log files on ovirt-engine and kvm host of RHV 4.3.x.

oVirt engine logs

Log File Log Rotation
/var/log/ovirt-engine/engine.log Reflects all OLVM GUI crashes, Active Directory lookups, Database issues, and other events.
/var/log/ovirt-engine/host-deploy/* Log files from hosts deployed from the OLVM.
/var/lib/ovirt-engine/setup/* Tracks the installation and upgrade of packages associated with the OLVM.
/var/lib/ovirt-engine/ova/* Log files for exporting virtual machine as OVA.
/var/log/httpd/ovirt-requests-log Logs files from requests made to the OLVM via HTTPS, including how long each request took. A Correlation-Id header is included to allow you to compare requests when comparing a log file with /var/log/ovirt-engine/engine.log.
/var/log/ovirt-provider-ovn.log Logs the activities of the OVN provider. For information about Open vSwitch logs

kvm host logs

Log File Log Rotation
/var/log/messages The log file used by libvirt. Use journalctl to view the log. You must be a member of the adm, systemd-journal, or wheel groups to view the log.
/var/log/libvirt/qemu/<vm_name>.log The log file of qemu driver plugin for the libvirtd daemon.
/var/log/sanlock.log The log file used by sanlock daemon.
/var/log/vdsm/spm-lock.log Log file detailing the host’s ability to obtain a lease on the Storage Pool Manager role. The log details when the host has acquired, released, renewed, or failed to renew the lease.
/var/log/vdsm/vdsm.log Log file for VDSM, the Manager’s agent on the virtualization host(s).
/var/log/vdsm/import/import-<UUID>-<Date>.log Log file detailing virtual machine imports from a KVM host, a VMWare provider, or a Xen host, including import failure information. UUID is the UUID of the virtual machine that was imported and Date is the date and time that the import began.
/var/log/vdsm/supervdsm.log Logs VDSM tasks that were executed with superuser permissions.
/var/log/vdsm/upgrade.log VDSM uses this log file during host upgrades to log configuration changes.
/var/log/vdsm/mom.log Logs the activities of the VDSM’s memory overcommitment manager.
/tmp/ovirt-host-deploy-.log Host deployment log, copied to the Manager as /var/log/ovirt-engine/host-deploy/ovirt-Date-Host-Correlation_ID.log after the host has been successfully deployed.

Log Rotation

oVirt engine logs

ovirt log rotation RHV

kvm host logs

kvm host log rotation RHV