Topic
  • 2 replies
  • Latest Post - ‏2013-02-25T20:52:09Z by SystemAdmin
SystemAdmin
SystemAdmin
6772 Posts

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

    Re: Need Help with Load Balancer Group as MPG Backend

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

    Re: Need Help with Load Balancer Group as MPG Backend

    ‏2013-02-25T20:52:09Z  
    • msiebler
    • ‏2013-02-25T16:36:35Z
    did you add the lb group to the service XML manager?
    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?