Bug 1349486

Summary:	vnc console in chrome is slow [OSP7]
Product:	Red Hat OpenStack	Reporter:	Ondrej <ochalups>
Component:	novnc	Assignee:	Lon Hohberger <lhh>
Status:	CLOSED ERRATA	QA Contact:	Ido Ovadia <iovadia>
Severity:	medium	Docs Contact:
Priority:	high
Version:	8.0 (Liberty)	CC:	aortega, athomas, awaugama, dmaley, ealcaniz, iievstig, jbuchta, lhh, mfuruta, mrunge, mschuppe, nbarcet, nlevinki, rcernin, srevivo, sross
Target Milestone:	async	Keywords:	Rebase, ZStream
Target Release:	7.0 (Kilo)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	novnc-0.6.1-1.el7ost	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1353926 (view as bug list)		Environment:
Last Closed:	2016-08-17 11:38:32 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1353926, 1358486

Description Ondrej 2016-06-23 14:13:03 UTC

Description of problem:
If Horizon vnc console is opened in chrome or opera, it responds very slowly.
Firefox works ok.


Version-Release number of selected component (if applicable):
python-django-horizon-2015.1.2-4.el7ost.noarch
google-chrome-stable-51.0.2704.103-1.x86_64

How reproducible:


Steps to Reproduce:
1.Project->Instances->Console
2.
3.

Actual results:
console responds slowly in chrome and opera

Expected results:
console respond time in chrome is normal

Additional info:

Comment 3 Matthias Runge 2016-06-23 15:53:10 UTC

Console is handled by novnc, Horizon just forwards the connection.

Please report the version of novnc being used.

Comment 4 Ondrej 2016-06-24 07:09:03 UTC

Hi,
the issue is hits in both versions:
OSP7:
openstack-nova-novncproxy-2015.1.3-7.el7ost.noarch
OSP8:
openstack-nova-novncproxy-12.0.2-5.el7ost.noarch

novnc-0.5.1-2.el7ost.noarch

Comment 5 Ondrej 2016-06-30 09:05:34 UTC

Chrome works fine up till version google-chrome-stable-50.0.2661.102-1.x86_64.rpm,
once upgraded to version google-chrome-stable-51.0.2704.63-1.x86_64.rpm vnc console began to respond slowly.
Ondrej

Comment 6 Ondrej 2016-06-30 09:44:43 UTC

Opera behaves similarly, 
working: opera-stable_37.0.2178.54_amd64.rpm
slowed: opera-stable_38.0.2220.29_amd64.rpm

Comment 8 Iuliia Ievstignieieva 2016-07-04 09:05:45 UTC

Hi all,

We need information on this bug to set the customer expectations. Please provide us the information required by Jan:


1) where the issue really is
2) is the patch available (upstream / downstream)
3) Can we fix it ?
4) When can the fix be delivered?


Thank you very much,


Julia

Comment 9 Robin Cernin 2016-07-04 10:51:09 UTC

I am running some tests with latest noVNC on Red Hat OpenStack Platform and can confirm that the issue is affecting noVNC. After swapping the noVNC files shipped with upstream code we couldn't reproduce the issue. We need to identify which patch fixes the Google Chrome slowness and backport it.

Comment 10 Matthias Runge 2016-07-04 10:56:11 UTC

Seconded. That's what I found. I even identified a patch, but there was so much refactoring, that I don't believe it's worth the effort to backport rather than to rebase to a later version.

See: https://github.com/kanaka/noVNC/releases/tag/v0.6.0

Comment 17 Edu Alcaniz 2016-07-18 09:11:41 UTC

Morning, could give us an update please.

Comment 21 Ido Ovadia 2016-08-01 09:23:15 UTC

Verified
========
novnc-0.6.1-1.el7ost.noarch
chrome 51.0.2704.106 (64-bit)

Comment 23 errata-xmlrpc 2016-08-17 11:38:32 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-1622.html