[ovirt-users] Fencing failed, fence agent ipmilan used instead of ilo4

[Wee Sritippho]

Found a workaround.

Changed the fence agent type from "ilo4" to "ipmilan" then added 
"lanplus=1,power_wait=30" (without quotes) to options.

Now the host can be fenced successfully and all HA VMs in that host will 
be restarted in another hosts.

Did a small experiment with power_wait parameter, here are the results:
- power_wait=60 : HA VMs restarted and are pingable in ~2:45 minutes 
after connection lost
- power_wait=30 : HA VMs restarted and are pingable in ~2:15 minutes 
after connection lost

On 10/5/2559 12:52, Wee Sritippho wrote:
> Hi,
>
> I'm running an oVirt hosted-engine environment on 3 hosts. To test 
> VMs' HA functionality, I shutdown host02's link, where one of my HA 
> VMs is running on, using this command:
>
> 2016-05-10 09:59:19 ICT [root at host02 ~]# ip link set bond0 down
>
> Few seconds later, an attempt to fence host02 was issued, and this 
> entry appears in the web UI event tab "May 10, 2016 10:00:34 ... 
> Executing power management status on Host hosted_engine_2 using Proxy 
> Host hosted_engine_1 and Fence Agent ipmilan:172.16.3.5.". The IP 
> "172.16.3.5" was correct the Fence Agent "ipmilan" was not.
>
> Even though a failure message "May 10, 2016 10:00:36 ... Execution of 
> power management status on Host hosted_engine_2 using Proxy Host 
> hosted_engine_1 and Fence Agent ipmilan:172.16.3.5 failed." appears in 
> the web UI event tab, host02 was successfully powered off.
>
> The last message in the web GUI event tab is "May 10, 2016 10:00:40 AM 
> ... Host hosted_engine_2 is rebooting.", but the host wasn't actually 
> rebooted - I have to boot it manually using iLo web UI.
>
> How can fix this issue in order to make VMs' HA work?
>
> Thank you.
>
> Here is my power management settings:
> hosted_engine_1 -> ilo4 : 172.16.3.4
> hosted_engine_2 -> ilo4 : 172.16.3.5
> hosted_engine_3 -> ilo4 : 172.16.3.6
>
> Here are the log files:
> https://app.box.com/s/fs5let8955rjbcuxuy0p42ixj4dzou6m
>
> [root at engine ~]# rpm -qa | grep ovirt
> ovirt-engine-wildfly-8.2.1-1.el7.x86_64
> ovirt-engine-setup-plugin-ovirt-engine-common-3.6.5.3-1.el7.centos.noarch
> ovirt-vmconsole-1.0.0-1.el7.centos.noarch
> ovirt-engine-cli-3.6.2.0-1.el7.centos.noarch
> ovirt-engine-setup-plugin-ovirt-engine-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-backend-3.6.5.3-1.el7.centos.noarch
> ovirt-iso-uploader-3.6.0-1.el7.centos.noarch
> ovirt-engine-extensions-api-impl-3.6.5.3-1.el7.centos.noarch
> ovirt-host-deploy-1.4.1-1.el7.centos.noarch
> ovirt-release36-007-1.noarch
> ovirt-engine-sdk-python-3.6.5.0-1.el7.centos.noarch
> ovirt-image-uploader-3.6.0-1.el7.centos.noarch
> ovirt-engine-extension-aaa-jdbc-1.0.6-1.el7.noarch
> ovirt-setup-lib-1.0.1-1.el7.centos.noarch
> ovirt-host-deploy-java-1.4.1-1.el7.centos.noarch
> ovirt-engine-setup-base-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-setup-plugin-websocket-proxy-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-tools-backup-3.6.5.3-1.el7.centos.noarch
> ovirt-vmconsole-proxy-1.0.0-1.el7.centos.noarch
> ovirt-engine-vmconsole-proxy-helper-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-setup-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-webadmin-portal-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-tools-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-restapi-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-3.6.5.3-1.el7.centos.noarch
> ovirt-guest-agent-common-1.0.11-1.el7.noarch
> ovirt-engine-wildfly-overlay-8.0.5-1.el7.noarch
> ovirt-engine-lib-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-websocket-proxy-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-setup-plugin-vmconsole-proxy-helper-3.6.5.3-1.el7.centos.noarch 
>
> ovirt-engine-userportal-3.6.5.3-1.el7.centos.noarch
> ovirt-engine-dbscripts-3.6.5.3-1.el7.centos.noarch
>
> [root at host03 ~]# rpm -qa | grep ovirt
> ovirt-vmconsole-1.0.0-1.el7.centos.noarch
> ovirt-host-deploy-1.4.1-1.el7.centos.noarch
> ovirt-vmconsole-host-1.0.0-1.el7.centos.noarch
> ovirt-engine-sdk-python-3.6.5.0-1.el7.centos.noarch
> ovirt-hosted-engine-ha-1.3.5.3-1.1.el7.noarch
> libgovirt-0.3.3-1.el7_2.1.x86_64
> ovirt-hosted-engine-setup-1.3.5.0-1.1.el7.noarch
> ovirt-setup-lib-1.0.1-1.el7.centos.noarch
>
> [root at host03 ~]# rpm -qa | grep vdsm
> vdsm-cli-4.17.26-1.el7.noarch
> vdsm-4.17.26-1.el7.noarch
> vdsm-infra-4.17.26-1.el7.noarch
> vdsm-xmlrpc-4.17.26-1.el7.noarch
> vdsm-yajsonrpc-4.17.26-1.el7.noarch
> vdsm-hook-vmfex-dev-4.17.26-1.el7.noarch
> vdsm-python-4.17.26-1.el7.noarch
> vdsm-jsonrpc-4.17.26-1.el7.noarch
>

-- 
Wee