[ovirt-users] Cluster settings: "KSM Control" not working?

[Doron Fediuck]

Thanks Frank. 
No need for manual sync if the cluster policy is set, the engine will update the police when the host moves to status up.

-------- Original message --------
From: Frank Wall <fw at moov.de> 
Date:19/10/2014  22:48  (GMT+02:00) 
To: Doron Fediuck <dfediuck at redhat.com> 
Cc: Amador Pahim <apahim at redhat.com>,users at ovirt.org,Martin Sivak <msivak at redhat.com> 
Subject: Re: [ovirt-users] Cluster settings: "KSM Control" not working? 

Hi Doron,

On Sun, Oct 19, 2014 at 11:42:47AM -0400, Doron Fediuck wrote:
> KSM is controlled by MoM, which gets its policy from the engine through
> VDSM. MoM will call ksm directly as needed when needed. If you choose
> to disable it the policy needs to get updated.
> Can you please check your mom logs and see if there are any errors there?

I wasn't aware of mom.log, thanks! :-) After another host reboot 
and a manual "Sync MOM Policy" it seems like the setting finally came 
through:

2014-10-19 15:57:18,211 - mom.Controllers.KSM - INFO - Updating KSM configuration: pages_to_scan:64 run:0 sleep_millisecs:10

Now the ksmd process is still there, but it remains idle.
I've tried this multiple times before upgrading to 3.5.0 GA
today. Maybe it was broken between RC and GA.

I'll keep an eye on this and open a BZ in case the setting will
change again.


Regards
- Frank

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