6.3. Upgrading a RHEL or RHEV-H 6 Self-Hosted Engine Environment
- Upgrade the Manager
- Upgrade the hosts
- Perform post-upgrade tasks
engine-setupcommand will attempt to roll back the Manager installation to its previous state. For this reason, the repositories required by Red Hat Enterprise Virtualization 3.5 must not be removed until after the upgrade is complete. If the upgrade fails, detailed instructions display that explain how to restore your installation.
Procedure 6.9. Upgrading the Manager
- Enable global maintenance from one of the self-hosted engine hosts:
# hosted-engine --set-maintenance --mode=global
- On the Manager virtual machine, subscribe to the required entitlements for receiving the Manager 3.6 packages:
# subscription-manager repos --enable=rhel-6-server-rhevm-3.6-rpms
- Update the rhevm setup packages:
# yum update rhevm\*setup\*
- Run the following command and follow the prompts to upgrade the Manager:
# engine-setup --otopi-environment=OVESETUP_DB/forceUpgradeWithHeEl6Hosts=bool:True
- Remove or disable the Manager 3.5 repository to ensure the system does not use any Manager 3.5 packages:
# subscription-manager repos --disable=rhel-6-server-rhevm-3.5-rpms
host-direct-upgrade tool provides a simple and fast way to upgrade a Red Hat Enterprise Virtualization 3.5 self-hosted engine environment, running on RHEV-H 6 or RHEL 6, to a Red Hat Enterprise Virtualization 3.6 self-hosted engine environment, running on Next Generation RHVH or RHEL 7. The tool has two main functions:
- Importing configurationThe tool imports the configuration files (
broker.conf) from the host on which the self-hosted engine was first deployed to the Manager virtual machine for later export to upgraded hosts. All files must be present on the host in order for the import to succeed. During this operation, the
ovirt-engineservice may be restarted to allow clusters with mixed hosts (different RHEL versions).
- Exporting configuration and configuring hostsThe tool configures an upgraded host with the configuration files that were imported to the Manager virtual machine. This operation can only be performed after the configuration file import operation.
Procedure 6.10. Upgrading the Self-Hosted Engine Host
- In the Administration Portal, click the Hosts tab, select the host on which the self-hosted engine was originally deployed, click , and click . The host's virtual machines, including the Manager, will migrate to other hosts.
- Connect to the Manager virtual machine and run the
host-direct-upgradetool to import the configuration files:
# /usr/share/ovirt-engine/bin/host-direct-upgrade.sh --import-configuration-files [-h 3.5-host-address]
NoteIf you do not specify the optional
-h 3.5-host-addressparameter, you will be prompted to input the 3.5 host's IP address or FQDN later.The
host-direct-upgradetool checks whether the self-hosted engine is configured to allow mixed RHEL versions in the same cluster. If not, the
ovirt-engineservice is restarted.
- In the Administration Portal, click the Clusters tab and select the cluster.
- In the Scheduling Policy tab, select InClusterUpgrade from the Policy drop-down list and click .
- Connect to the Manager virtual machine and run the
host-direct-upgradetool to export the configuration files:
# /usr/share/ovirt-engine/bin/host-direct-upgrade.sh --export-and-configure [-h 3.6-host-address]
NoteThe 3.6-host-address is the IP address or FQDN of the host that you upgraded.This process may take 10 to 15 minutes.
- Check the host's status:
# hosted-engine --vm-statusThe
!! Cluster is in GLOBAL MAINTENANCE mode !! --== Host 1 status ==-- conf_on_shared_storage : False Status up-to-date : True Hostname : rhvhhe20170926h1.localdomain Host ID : 1 Engine status : "reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown" Score : 2800 stopped : False Local maintenance : False crc32 : ffe0a244 local_conf_timestamp : 0 Host timestamp : 1375
- In the Administration Portal, click the Hosts tab and select the 3.5 host (still in maintenance mode).
- Clickand .
- Clickand add the upgraded host. Its status should be
- Migrate the Manager virtual machine manually to the upgraded host. See Manually Migrating Virtual Machines in the Virtual Machine Management Guide for details.
Procedure 6.11. Comparing the Manager's SPM ID to the Host IDs
- Connect to the Manager virtual machine and run the following command to output the SPM ID:
# sudo -u postgres psql engine -c "SELECT vds_spm_id, vds.vds_name FROM vds"
- Connect to each host and run the following command to ouput the Host ID:
# grep "^host_id" /etc/ovirt-hosted-engine/hosted-engine.conf
- If a host's Host ID does not match the Manager's SPM ID:
- In the Administration Portal, click the Hosts tab, select the host with the mismatched Host ID, click , and click .
- Connect to the host and correct the
host_idvalue in the
- Reboot the host.
- In the Administration Portal, click the Hosts tab and select the host.
- Clickand .
Procedure 6.12. Upgrading the Remaining Hosts
- In the Administration Portal, click the Hosts tab, select another host, and click .The host's virtual machines will migrate to other machines, preferring hosts with newer operating systems, because of the
InClusterUpgradepolicy. If the virtual machines do not migrate automatically, migrate them manually. See Manually Migrating Virtual Machines in the Virtual Machine Management Guide for details.
- When the host has no virtual machines, click.
- Install Next Generation RHVH or RHEL 7 on the host, keeping its IP address and host name.
- In the Administration Portal, click the Hosts tab and click to add the upgraded host.
NoteThe upgraded host is added manually, before the
hosted-enginesetup, in order to preserve its Host ID.
- Connect to the host, disable NetworkManager, and enable the network script:
# systemctl stop NetworkManager; systemctl disable NetworkManager; systemctl start network; systemctl enable network
- Install the
screenutility if necessary:
# yum install screen
- Run the
hosted-enginesetup in a
# hosted-engine --deploy [ INFO ] Stage: Initializing [ INFO ] Generating a temporary VNC password. [ INFO ] Stage: Environment setup Continuing will configure this host for serving as hypervisor and create a VM where you have to install the engine afterwards. Are you sure you want to continue? (Yes, No)[Yes]: Configuration files:  Log file: /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup.log Version: otopi-1.4.2 (otopi-1.4.2-1.el7ev) [ INFO ] Hardware supports virtualization [ INFO ] Stage: Environment packages setup [ INFO ] Stage: Programs detection [ INFO ] Stage: Environment setup [ INFO ] Stage: Environment customization --== STORAGE CONFIGURATION ==-- During customization use CTRL-D to abort. Please specify the storage you would like to use (glusterfs, iscsi, fc, nfs3, nfs4)[nfs3]: nfs4 Please specify the full shared storage connection path to use (example: host:/path): hostname:/path The specified storage location already contains a data domain. Is this an additional host setup (Yes, No)[Yes]? [ INFO ] Installing on additional host Please specify the Host ID [Must be integer, default: 2]: --== SYSTEM CONFIGURATION ==-- [WARNING] A configuration file must be supplied to deploy Hosted Engine on an additional host. [ INFO ] Answer file successfully loaded --== NETWORK CONFIGURATION ==-- [ INFO ] Bridge rhevm already created [ INFO ] Additional host deployment, firewall manager is 'iptables' The following CPU types are supported by this host: - model_SandyBridge: Intel SandyBridge Family - model_Westmere: Intel Westmere Family - model_Nehalem: Intel Nehalem Family - model_Penryn: Intel Penryn Family - model_Conroe: Intel Conroe Family --== HOSTED ENGINE CONFIGURATION ==-- Enter the name which will be used to identify this host inside the Administrator Portal [hosted_engine_2]: Enter 'admin@internal' user password that will be used for accessing the Administrator Portal: Confirm 'admin@internal' user password: [ INFO ] Stage: Setup validation Please provide the address of this host. Note: The engine VM and all the other hosts should be able to correctly resolve it. Host address: [rhvh.example.com]: The Host ID is already known. Is this a re-deployment on an additional host that was previously set up (Yes, No)[Yes]? --== CONFIGURATION PREVIEW ==-- Engine FQDN : enginevm.localdomain Bridge name : rhevm Host address : rhvh.example.com SSH daemon port : 22 Firewall manager : iptables Gateway address : 192.168.1.1 Host name for web application : hosted_engine_2 Storage Domain type : nfs4 Host ID : 2 Image size GB : 50 GlusterFS Share Name : hosted_engine_glusterfs GlusterFS Brick Provisioning : False Storage connection : hostname:/path Console type : vnc Memory size MB : 4096 MAC address : 00:16:3e:12:96:6b Boot type : disk Number of CPUs : 1 CPU Type : model_SandyBridge [ INFO ] Stage: Transaction setup [ INFO ] Stage: Misc configuration [ INFO ] Stage: Package installation [ INFO ] Stage: Misc configuration [ INFO ] Configuring libvirt [ INFO ] Configuring VDSM [ INFO ] Starting vdsmd [ INFO ] Waiting for VDSM hardware info [ INFO ] Configuring VM [ INFO ] Updating hosted-engine configuration [ INFO ] Stage: Transaction commit [ INFO ] Stage: Closing up [ INFO ] Acquiring internal CA cert from the engine [ INFO ] The following CA certificate is going to be used, please immediately interrupt if not correct: [ INFO ] Issuer: C=US, O=localdomain, CN=enginevm.localdomain.34970, Subject: C=US, O=localdomain, CN=enginevm.localdomain.34970, Fingerprint (SHA-1): 46A75DA2174D03B100D1811411C0C6627CB1D821 [ INFO ] Connecting to the Engine [ INFO ] Waiting for the host to become operational in the engine. This may take several minutes... [ INFO ] Still waiting for VDSM host to become operational... [ INFO ] The VDSM Host is now operational [ ERROR ] Cannot automatically set CPU level of cluster Default: inclusterupgrade is not a member of SchedulingPolicyType. Possible values for SchedulingPolicyType are: evenly_distributed, power_saving, none, vm_evenly_distributed [ INFO ] Enabling and starting HA services [ INFO ] Stage: Clean up [ INFO ] Generating answer file '/var/lib/ovirt-hosted-engine-setup/answers/answers-20170927190113.conf' [ INFO ] Generating answer file '/etc/ovirt-hosted-engine/answers.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ INFO ] Hosted Engine successfully set up
NoteYou can ignore the
[ ERROR ] Cannot automatically set CPU level of cluster Defaultmessage.
Procedure 6.13. Post-Upgrade Tasks
- In the Administration Portal, click the Cluster tab and select the cluster.
- Select 3.6 from the Compatibility Version drop-down list.
- In the Scheduling Policy tab, select None from the Policy drop-down list and click .
- Reboot each virtual machine (except the Manager virtual machine), one by one.
- Connect to the Manager virtual machine and update its configuration:
# engine-config -s CheckMixedRhelVersions=true --cver=3.5
- In the Administration Portal, click the Events tab and confirm that the Manager virtual machine and its storage domain were imported successfully:
Sep 27, 2017 7:15:18 PM Hosted Engine VM was imported successfully Sep 27, 2017 7:15:18 PM Starting to import Vm HostedEngine to Data Center Default, Cluster Default Sep 27, 2017 7:15:16 PM VM HostedEngine was successfully removed. Sep 27, 2017 7:15:00 PM Hosted Engine storage domain imported successfully Sep 27, 2017 7:15:00 PM Storage Domain hosted_storage was attached to Data Center Default by SYSTEM Sep 27, 2017 7:15:00 PM Storage Domain hosted_storage (Data Center Default) was activated by SYSTEM Sep 27, 2017 7:14:57 PM The Hosted Engine Storage Domain isn't Active.
- In the Virtual Machines tab, select the Manager virtual machine, and click .
- Connect to a self-hosted engine host and disable global maintenance mode:
# hosted-engine --set-maintenance --mode=noneWait for the
ovirt-ha-agentservice to restart the Manager virtual machine.
- Check the status of each host:
# hosted-engine --vm-statusEach host should have a score of
--== Host 1 status ==-- conf_on_shared_storage : False Status up-to-date : True Hostname : rhvhhe20170926h1.localdomain Host ID : 1 Engine status : "health": "good", "vm": "up", "detail": "up" Score : 3400 stopped : False Local maintenance : False crc32 : 6a5a17a7 local_conf_timestamp : 7580 Host timestamp : 7579 --== Host 2 status ==-- conf_on_shared_storage : False Status up-to-date : True Hostname : rhvhhe20170926h2.localdomain Host ID : 2 Engine status : "reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown" Score : 3400 stopped : False Local maintenance : False crc32 : 1c87c83d local_conf_timestamp : 4323 Host timestamp : 4323