
On Mon, Jun 20, 2016 at 6:26 PM, Nir Soffer <nsoffer@redhat.com> wrote:
On Mon, Jun 20, 2016 at 11:33 AM, Martin Sivak <msivak@redhat.com> wrote:
1. Mom is still using xmlrpc
Mom must move to jsonrpc. Martin: can you update on progress of this work?
We would like to avoid going through VDSM completely, except from the broker part. Is it possible now to "parasitically" listen to vdsm events and engine commands without having to go through VDSM API?
You can drop XML RPC,. vdsm does not depend on MOM working anymore. Just the balloon and ksm stats will be missing from data that are being sent to the engine.
Martin, can you list the verbs that mom is using?
Easily: Those below are currently used by MOM directly: getAllVmStats vmSetCpuTuneQuota vmSetCpuTunePeriod getIoTunePolicy getIoTune setIoTune setKsmTune We also have some verbs that are used by the engine and forwarded to MOM: setMOMPolicyParameters setMOMPolicy updateVmPolicy Btw, about stats collection: Balloon stats are collected by VDSM KSM stats are collected by MOM and VDSM grabs them in vdsm.momIF.MomClient#getKsmStats Martin
Removing the verbs that nobody is using now can be nice progress.
Nir