[ovirt-users] host timeout for remote colo

[Bill James]

thanks, we found when we switched to a different internet provider that 
the network issues went away.
I'll look into upgrading, but it hard for us to keep up. We just got to 
4.1.0 recently.  :-)


On 8/24/17 10:57 PM, Yaniv Kaul wrote:
>
>
> On Thu, Aug 24, 2017 at 9:55 PM, Bill James <bill.james at j2.com 
> <mailto:bill.james at j2.com>> wrote:
>
>     We have an ovirt master (engine) host in Los Angeles and some
>     remote servers in the UK.
>     Normally they work fine, but when there is a heavy load on the UK
>     servers the management engine has problems with heartbeat and ends
>     up trying to restart the nodes.
>
>
> Perhaps the mgmt interface is used for traffic other than mgmt? On 
> small scale it's OK. For bigger scale and workloads, it's best to 
> separate traffic to dedicated NICs.
>
>
>     I saw in this thread that I can change vdsHeartbeatInSeconds
>     (https://www.mail-archive.com/users@ovirt.org/msg41695.html
>     <https://www.mail-archive.com/users@ovirt.org/msg41695.html>)
>     but I don't really want to change it globally, just for the nodes
>     in UK.
>     Also not sure how to get the current setting of that value, only
>     how to change it. How do I tell current value?  I heard default is
>     30 seconds.
>
>
> To change it:
> usr/share/ovirt-engine/dbscripts/engine-psql.sh -c "update vdc_options 
> set option_value = 90 where option_name = 'vdsHeartbeatInSeconds'
>
>
>     ovirt-engine-4.1.0.4-1.el7.centos.noarch
>
>
> I recommend upgrade, though not specifically due to the above issue.
>
>
>     Or maybe its not best practice to have a cluster that far from the
>     engine?
>
>
> We have an Engien in Israel managing hosts in Europe and the US.
> Y.
>
>
>
>     2017-08-24 11:27:51,921-07 WARN
>     [org.ovirt.engine.core.vdsbroker.VdsManager]
>     (DefaultQuartzScheduler3) [feefbf3f-d0e2-4a64-b008-80838d04f130]
>     Failed to refresh VDS, network error, continuing,
>     vds='ovirt1.evuk.j2noc.com
>     <http://ovirt1.evuk.j2noc.com>'(d0482635-93fd-4cc3-9c78-523078845f11):
>     VDSGenericException: VDSNetworkException: Heartbeat exceeded
>
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>
>


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