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Bug 1270213

Summary: sometimes I can't login into horizon
Product: Red Hat OpenStack Reporter: Martin Pavlásek <mpavlase>
Component: python-django-horizonAssignee: Matthias Runge <mrunge>
Status: CLOSED DUPLICATE QA Contact: Ido Ovadia <iovadia>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0 (Kilo)CC: aortega, apevec, athomas, mrunge, yeylon
Target Milestone: ---   
Target Release: 8.0 (Liberty)   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-10-09 12:16:13 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:
Attachments:
Description Flags
horizon.log none

Description Martin Pavlásek 2015-10-09 09:51:21 UTC 
Description of problem:
Sometimes I couldn't log in into Horizon with no obvious reason or any error message. It's quite confusing situation for end user, if he provide correct credentials and he is redirected to login page. I tried that with two users (demo, admin) and it doesn't work in both cases.

Version-Release number of selected component (if applicable):
python-django-horizon-2015.1.0-11.el7ost.noarch
python-django-1.8.3-1.el7.noarch
python-django-openstack-auth-1.2.0-4.el7ost.noarch
openstack-dashboard-2015.1.0-11.el7ost.noarch
openstack-dashboard-theme-2015.1.0-11.el7ost.noarch

How reproducible:
1/20, quite rarely

Steps to Reproduce:
1. navigate to dashboard (like http://ip/
2. fill login form with valid credentials, click to Sign in button
3.

Actual results:
User is not logged in although user/password combination was correct, also there is any displayed error message.

Expected results:
User should be logged in by first attempt.

Additional info:

WORKAROUND:
Remove "sessionid" cookie (i.e. by FireBug), refresh page and try to log in again - this works in 100%.
Comment 2 Martin Pavlásek 2015-10-09 10:12:35 UTC 
Discovered in my local firefox v34 and openstack environment is running on RHEL 7.1
Comment 3 Matthias Runge 2015-10-09 10:31:45 UTC 
I assume, you have something in logs, esp about cookie size?
Comment 4 Martin Pavlásek 2015-10-09 10:50:04 UTC 
Created attachment 1081280 [details]
horizon.log

Part of horizon.log that is related to cookie size.
Comment 5 Matthias Runge 2015-10-09 12:16:13 UTC 
here you go.

add
SESSION_ENGINE = 'django.contrib.sessions.backends.cache'

to your local settings, make sure, you have a memcached installed and configured
systemctl restart httpd

I opened a bug about this a while ago on installer

https://bugzilla.redhat.com/show_bug.cgi?id=1255369
Comment 6 Alan Pevec (Fedora) 2015-10-30 10:33:10 UTC 

*** This bug has been marked as a duplicate of bug 1255369 ***