[ovirt-users] oVirt Gluster Hyperconverged problem

knarra knarra at redhat.com
Tue Sep 20 05:57:46 UTC 2016


     Pad [1] contains the procedure to replace the host with same FQDN 
where existing host OS has to be re-installed.

[1] https://paste.fedoraproject.org/431252/47435076/


On 09/20/2016 06:27 AM, Hanson wrote:
> Hi Guys,
> I encountered an unfortunate circumstance today. Possibly an achillies 
> heel.
> I have three hypervisors, HV1, HV2, HV3, all running gluster for 
> hosted engine support. Individually they all pointed to 
> HV1:/hosted_engine with backupvol=HV2,HV3...
> HV1 lost its bootsector, which was discovered upon a reboot. This had 
> zero impact, as designed, on the VM's.
> However, now that HV1 is down, how does one go about replacing the 
> original HV? The backup servers point to HV1, and you cannot readd the 
> HV through the GUI, and the CLI will not readd it as it's already 
> there... you cannot remove it as it is down in the GUI...
> Pointing the other HV's to their own storage may make sense for 
> multiple instances of the hosted_engine, however it's nice that the 
> gluster volumes are replicated and that one VM can be relaunched when 
> a HV error is detected. It's also consuming less resources.
> What's the procedure to replace the original VM?
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