we had a failure to deploy hosts for change; https://gerrit.ovirt.org/#/c/94228/1

I don't think its related directly to the change but anything between
packaging: use system provided nimbus-jose-jwt also on el7 patch and current patch could have caused the failure.

https://gerrit.ovirt.org/#/q/project:ovirt-engine+status:Merged+branch:master

Sandro, Ondra, can you please have a look?

(Relevant) error snippet from the log:

<error>

018-09-10 04:05:33,850-04 INFO  [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] Installation of lago-upgrade-from-release-suite-master-host-0. Executing command via SSH umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MYTMP}\" > /dev/null 2>&1; rm -fr \"${MYTMP}\" > /dev/null 2>&1" 0; tar -b1 --warning=no-timestamp -C "${MYTMP}" -x &&  "${MYTMP}"/ovirt-host-deploy DIALOG/dialect=str:machine DIALOG/customization=bool:True < /var/cache/ovirt-engine/ovirt-host-deploy.tar
2018-09-10 04:05:33,850-04 INFO  [org.ovirt.engine.core.utils.archivers.tar.CachedTar] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] Tarball '/var/cache/ovirt-engine/ovirt-host-deploy.tar' refresh
2018-09-10 04:05:33,915-04 INFO  [org.ovirt.engine.core.uutils.ssh.SSHDialog] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] SSH execute 'root@lago-upgrade-from-release-suite-master-host-0' 'umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MYTMP}\" > /dev/null 2>&1; rm -fr \"${MYTMP}\" > /dev/null 2>&1" 0; tar -b1 --warning=no-timestamp -C "${MYTMP}" -x &&  "${MYTMP}"/ovirt-host-deploy DIALOG/dialect=str:machine DIALOG/customization=bool:True'
2018-09-10 04:05:34,694-04 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (VdsDeploy) [33bb53b] EVENT_ID: VDS_INSTALL_IN_PROGRESS(509), Installing Host lago-upgrade-from-release-suite-master-host-0. Stage: Initializing.
2018-09-10 04:05:34,710-04 INFO  [org.ovirt.engine.core.utils.transaction.TransactionSupport] (VdsDeploy) [33bb53b] transaction rolled back
2018-09-10 04:05:34,719-04 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [33bb53b] Error during deploy dialog
2018-09-10 04:05:34,723-04 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] Error during host lago-upgrade-from-release-suite-master-host-0 install
2018-09-10 04:05:34,736-04 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] EVENT_ID: VDS_INSTALL_IN_PROGRESS_ERROR(511), An error has occurred during installation of Host lago-upgrade-from-release-suite-master-host-0: CallableStatementCallback; SQL [{call insertauditlog(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)}ERROR: invalid byte sequence for encoding "UTF8": 0x00; nested exception is org.postgresql.util.PSQLException: ERROR: invalid byte sequence for encoding "UTF8": 0x00.
2018-09-10 04:05:34,737-04 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] Error during host lago-upgrade-from-release-suite-master-host-0 install, preferring first exception: CallableStatementCallback; SQL [{call insertauditlog(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)}ERROR: invalid byte sequence for encoding "UTF8": 0x00; nested exception is org.postgresql.util.PSQLException: ERROR: invalid byte sequence for encoding "UTF8": 0x00
2018-09-10 04:05:34,737-04 ERROR [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] Host installation failed for host 'febee66d-fa4b-4321-9c99-cb053ddd4817', 'lago-upgrade-from-release-suite-master-host-0': CallableStatementCallback; SQL [{call insertauditlog(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)}ERROR: invalid byte sequence for encoding "UTF8": 0x00; nested exception is org.postgresql.util.PSQLException: ERROR: invalid byte sequence for encoding "UTF8": 0x00
2018-09-10 04:05:34,760-04 INFO  [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] START, SetVdsStatusVDSCommand(HostName = lago-upgrade-from-release-suite-master-host-0, SetVdsStatusVDSCommandParameters:{hostId='febee66d-fa4b-4321-9c99-cb053ddd4817', status='InstallFailed', nonOperationalReason='NONE', stopSpmFailureLogged='false', maintenanceReason='null'}), log id: 793ad1ed
2018-09-10 04:05:34,769-04 INFO  [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] FINISH, SetVdsStatusVDSCommand, return: , log id: 793ad1ed
2018-09-10 04:05:34,781-04 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] EVENT_ID: VDS_INSTALL_FAILED(505), Host lago-upgrade-from-release-suite-master-host-0 installation failed. CallableStatementCallback; SQL [{call insertauditlog(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)}ERROR: invalid byte sequence for encoding "UTF8": 0x00; nested exception is org.postgresql.util.PSQLException: ERROR: invalid byte sequence for encoding "UTF8": 0x00.
2018-09-10 04:05:34,794-04 INFO  [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-1) [33bb53b] Lock freed to object 'EngineLock:{exclusiveLocks='[febee66d-fa4b-4321-9c99-cb053ddd4817=VDS]', sharedLocks=''}'
2018-09-10 04:06:10,003-04 INFO  [org.ovirt.engine.core.bll.quota.QuotaManager] (EE-ManagedThreadFactory-engineScheduled-Thread-44) [] Quota Cache updated. (20 msec)
(END)

</error>