1083070 – [RFE] Optimization of the communication between VDSM and the Engine for Virtual Machine data

Bug 1083070 - [RFE] Optimization of the communication between VDSM and the Engine for Virtual Machine data

Summary: [RFE] Optimization of the communication between VDSM and the Engine for Virtu...

Keywords:
Status:	CLOSED DUPLICATE of bug 1225368
Alias:	None
Product:	oVirt
Classification:	Retired
Component:	vdsm
Sub Component:
Version:	3.5
Hardware:	Unspecified
OS:	Unspecified
Priority:	unspecified
Severity:	unspecified
Target Milestone:	---
Target Release:	3.6.0
Assignee:	Vinzenz Feenstra [evilissimo]
QA Contact:	Gil Klein
Docs Contact:
URL:
Whiteboard:	virt
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2014-04-01 12:40 UTC by Vinzenz Feenstra [evilissimo]
Modified:	2016-02-10 19:49 UTC (History)
CC List:	8 users (show)
Fixed In Version:
Doc Type:	Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed:	2015-06-03 08:00:30 UTC
oVirt Team:	Virt
Embargoed:
Dependent Products:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
oVirt gerrit	28819	0	master	DRAFT	Query interface for all VM fields Change-Id: Iddb4657d738ca0406950d07b84a7c85721e80b78 Bug-Url: https://bugzilla.red...	Never

Description Vinzenz Feenstra [evilissimo] 2014-04-01 12:40:29 UTC

Currently VDSM gets polled for a lot of data from the engine. A lot of this data does not need to be transmitted.

Currently we have the following calls
* Every 3 seconds `list`
* Every 15 seconds `getAllVmStats`

The call to getAllVmStats can easily grow to several hundreds of kilobytes per call.

However the majority of the data sent by VDSM to the engine is not required by the engine at all. However since there is currently no more effective way the engine is required to query the data all the time.

Goals for this RFE:

Reduce the VM data transfer size to a minimum and provide means to get only data which did really changed since the last request.

Comment 1 Michal Skrivanek 2014-05-28 14:45:15 UTC

didn't make much progress yet...

Comment 2 Michal Skrivanek 2015-05-21 08:21:57 UTC

dropping 3s interval by implementing events over JSON-RPC (see http://gerrit.ovirt.org/#/q/status:open+project:vdsm+branch:master+topic:events_vm_status)

Comment 3 Michal Skrivanek 2015-06-03 08:00:30 UTC

moving over there

*** This bug has been marked as a duplicate of bug 1225368 ***

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