[ovirt-users] SLA : RAM scheduling

[Michal Skrivanek]

On 11 Jun 2014, at 14:31, noc wrote:

> On 26-5-2014 16:22, Gilad Chaplik wrote:
>> Hi Nathanaël,
>> 
>> happy to assist :) hope it will work in first run:
>> 
>> 1) install the proxy and ovirtsdk.
>> 2) put attached file in the right place (according to docs: ".../plugins"), make sure to edit the file with your ovirt's ip, user at domain and PW.
>> 3) restart proxy service.
>> 3) use config tool to configure ovirt-engine:
>> * "ExternalSchedulerServiceURL"="http://<ip>:18781/"
>> * "ExternalSchedulerEnabled"=true
>> 4) restart ovirt-engine service.
>> 5) under configure->cluster_policy see that weight function memory_even_distribution was added (should be in manage policy units or /sth- you will see it in the main dialog as well).
>> 6) clone/copy currernt cluster's used cluster policy (probably none - prefer it to have no balancing modules to avoid conflicts), name it 'your_name' and attach memory_even_distribution weight (you can leave it as the only weight module in weight section to avoid configuring factors).
>> 7) replace cluster's cluster policy with newly created one.
>> 
>> try it out and let me know how goes :-)
>> 
>> 
> Ok, progress of some sort :-)
> 
> I added the weight function to the cluster and when I replace my dns name with localhost in ExternalSchedulerServiceURL then engine.log shows that it can contact the scheduler. I expected a rebalance but nothing happened. Stopping and starting a VM does provoke a reaction, an error :-(
> 
> From the scheduler.log I see that engine contacts it and pushes some information, the log also shows that some information is returned and then there is a big error message in the log of engine.

xmlrpc is infamous about not being able to handle numbers like 9223372010239819775

Thanks,
michal
> 
> Joop
> 
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