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Horizon (Dashboard) extremely slow

asked 2014-04-16 13:18:00 -0500

bgyako gravatar image

Hi Guys,

I am running open stack Grizzly, having an issue with Dashboard running extremely slow. I found the issue with tokens not properly being deleted, and cleaned the Keystone DB and everything started working properly. The issue came back once we started creating multiple instances. We have close to 80 instances running as an experiment, and dashboard takes 2 minutes to load between pages. I do not see any errors in the logs and functionality seems to be working just very slow. Any help would be greatly appreciated in pin pointing the problem.

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answered 2014-04-17 02:56:46 -0500

updated 2014-04-18 09:45:48 -0500

It is a known issue for grizzly release, read this and related links:

http://www.sebastien-han.fr/blog/2012...

From IceHouse release there is a section on official installation guides that points it out this behavior and how to solve it (step 9 of Openstack-Ubuntu-installation-guide, step 8 of Openstack-CentOS-installation-guide)

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I already cleaned up the token table in keystone DB. I then set up an event to clean that table weekly. Still having the issue. I manually clean table and right after clean up dashboard is still slow.

bgyako gravatar imagebgyako ( 2014-04-17 10:40:51 -0500 )edit

I noticed that after the token table is cleaned dashboard is still slow, but if I restart keystone service it works fine for a short time. So definitely appears keystone related.

bgyako gravatar imagebgyako ( 2014-04-17 10:56:20 -0500 )edit

I also noticed in keystone config the expiration time is not set. Should it be set, what impact will it have if it is commented out as such: # Amount of time a token should remain valid (in seconds) #expiration = 86400

bgyako gravatar imagebgyako ( 2014-04-17 15:17:11 -0500 )edit

Here a previous answer about this issue:

https://ask.openstack.org/en/question...

Antonio G. gravatar imageAntonio G. ( 2014-04-18 05:18:03 -0500 )edit

I took those steps, and it is still slow.

bgyako gravatar imagebgyako ( 2014-04-21 09:53:07 -0500 )edit

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Asked: 2014-04-16 13:18:00 -0500

Seen: 5,859 times

Last updated: Apr 18 '14