[Building Sakai] Issues with Account Validator in Clustered Environment

[Stephen Marquard]

We've certainly had similar-sounding reports to our helpdesk, but never associated it specifically with cluster / caching issues. At one point we thought it was because the user's browser was saving an old password.

>From your testing, it sounds like the user authentication cache may not get invalidated correctly on the other app servers. If that is the case, then you should be able to see the same behaviour from changing the user's password using the Admin tool.

Regards
Stephen

________________________________________
From: sakai-dev-bounces at collab.sakaiproject.org [sakai-dev-bounces at collab.sakaiproject.org] on behalf of Mike Jennings [mike_jennings at unc.edu]
Sent: 12 March 2014 04:12 PM
To: sakai-dev
Subject: [Building Sakai] Issues with Account Validator in Clustered    Environment

Hi all.  We are currently running Sakai 2.9.2 on about 8 tomcat servers.
  The issue that we are currently running into is that when the user is
using the Account Validation page to create there Local Account and set
there password, this change only works on the server that they are
currently connected to.  If the logout and then connect to a different
application server, they get a login invalid message.

I was hoping that someone has run into this issue already..

Here is the quick rundown.

User connects to server 1 and does the account validation and sets there
password.  They are able to logout and log back in with the new password
as long as they are on server 1.

Later they reconnect but are attached to server 2.  They are not able to
login to the system and get login invalid message.

If I login to server 2 as a administrator and evict all caches in the
memory, then the user can login to server 2 with there validated
username and password.

Please any help would be greatly appreciated...

Mike Jennings
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