Topic
2 replies Latest Post - ‏2013-02-25T20:52:09Z by SystemAdmin
SystemAdmin
SystemAdmin
6772 Posts
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Pinned topic Need Help with Load Balancer Group as MPG Backend

‏2013-02-25T16:18:29Z |
XI52 5.0.0.3 Firmware, Weblogic back-end

This should be easy, but for some strange reason, we cannot seem to use a Load Balancer Group as a back end for an MPG.

Say our LBG has 2 members and is named MY_LBG. The members' are defined by IP, and the mapped server port is set to 0. We set the static back end in the MPG to "http://MY_LBG:8011", and BOTH servers are listening on port 8011. In this setup, it says it fails to make the back-side connection. So, I thought I had the port setup backwards, and changed the mapped server port on each member to 8011, and changed the static back end in the MPG to "http://MY_LBG". Again, it says it fails to make the back-side connection.

If I set the static back end to any of the members directly, like "http://IP_OF_MEMBER_1:8011" or "http://IP_OF_MEMBER_2:8011", it works just fine.

So, I'm thinking I'm missing a radio button somewhere.

Here's what we have set:

MAIN TAB
============================================
Algorithm: Hash
Retrieve Workload Management Information: off
Damp Time: 120
Do Not Pass Down State: off
Try Every Server Before Failing: on
Masquerade as group name: on

HEALTH *** Not enabled
=========================================

SESSION AFFINITY
=========================================
Insertion Cookie Name: DPJSESSIONID
Insertion Path: /
Insertion Domain: .ourcompany.com
Override Websphere Cell Session Affinity: on
Mode: active-conditional
Monitored Cookies: JSESSIONID

MEMBERS (2 identically setup except IP address)
===============================
Host: IP
Weight: 1
Mapped Server Port: 0 (or the actual of 8011, neither worked)
Health Port: 0 ( Health Checking is off right now )
Updated on 2013-02-25T20:52:09Z at 2013-02-25T20:52:09Z by SystemAdmin
  • msiebler
    msiebler
    140 Posts
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    Re: Need Help with Load Balancer Group as MPG Backend

    ‏2013-02-25T16:36:35Z  in response to SystemAdmin
    did you add the lb group to the service XML manager?
    • SystemAdmin
      SystemAdmin
      6772 Posts
      ACCEPTED ANSWER

      Re: Need Help with Load Balancer Group as MPG Backend

      ‏2013-02-25T20:52:09Z  in response to msiebler
      Yes... we did.

      We did solve it, but didn't "solve" anything, in the sense of understanding it.

      We dropped the LBG and re-built it. It is working now. In my haste to rebuild it, I gave the new one a really short name. The first one had a pretty long name, like 25 to 30 characters.

      The one that is now working is 8 characters long.

      Is there anything in anyone's experience where the length of the name of a load balancer group affected its working state?