[keycloak-user] Keycloak OAuth High CPU usage

[Vaibhav Naldurgkar]

Hi Stian,
Thank you for your reply.

The new tokens needs to be generated for each user, which is needed from security point of view. The performance tests were also conducted using single Admin user and token for admin user; however in that case the performance was not good. In between 15th to 20th admin token access requests – the CPU usage of keycloak Java process was crossing 90 to 120% mark.

As you have mentioned, Creating tokes are expected to be a bit CPU intensive – what should be the server configuration in terms of CPU to deal with more than 500 users to use keycloak as OAuth provider.


Thanks, Vaibhav



From: Stian Thorgersen [mailto:sthorger at redhat.com]
Sent: Thursday, May 19, 2016 6:28 PM
To: Vaibhav Naldurgkar
Cc: keycloak-user at lists.jboss.org
Subject: Re: [keycloak-user] Keycloak OAuth High CPU usage

Creating tokes are expected to be a bit CPU intensive as they need to be signed. When you say you try to generate tokens for 10-20 users are you doing performance tests and having 10-20 threads generating tokens? It shouldn't make any difference if you have 10 or if you have 200 users, it's the total number of tokens that can be generated that's an issue. Having 200 concurrent users with a access token timeout of 60 seconds should mean that you need to be able to generate roughly 200/60 tokens = 3.3 tokens/sec.

On 19 May 2016 at 13:24, Vaibhav Naldurgkar <vaibhav_naldurgkar at persistent.com<mailto:vaibhav_naldurgkar at persistent.com>> wrote:
Hi All,

I am using Keycloak 1.9.3 with default configuration. Keycloak server is installed on RHEL 6.5 virtual image with 4 CPU , 8 GB RAM and java version is jdk1.8.0_73 We are trying to use keycloak as a OAuth provider. But when we try and generate token(http:///auth/realms/master/protocol/openid-connect/token<http://auth/realms/master/protocol/openid-connect/token>) for more than 10-20 users the server gets too slow and cpu usage goes over 100%.
Any pointers on how to improve performance of keycloak OAuth provider. We need to support at least 200 concurrent users.


Thanks, Vaibhav

DISCLAIMER ========== This e-mail may contain privileged and confidential information which is the property of Persistent Systems Ltd. It is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you are not authorized to read, retain, copy, print, distribute or use this message. If you have received this communication in error, please notify the sender and delete all copies of this message. Persistent Systems Ltd. does not accept any liability for virus infected mails.

_______________________________________________
keycloak-user mailing list
keycloak-user at lists.jboss.org<mailto:keycloak-user at lists.jboss.org>
https://lists.jboss.org/mailman/listinfo/keycloak-user


DISCLAIMER
==========
This e-mail may contain privileged and confidential information which is the property of Persistent Systems Ltd. It is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you are not authorized to read, retain, copy, print, distribute or use this message. If you have received this communication in error, please notify the sender and delete all copies of this message. Persistent Systems Ltd. does not accept any liability for virus infected mails.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/keycloak-user/attachments/20160520/feca25a8/attachment.html