web
You’re offline. This is a read only version of the page.
close
Skip to main content

Notifications

Announcements

No record found.

Community site session details

Community site session details

Session Id :
Microsoft Dynamics AX (Archived)

Ax 2009 Load Balancing and Clustering with Multiple AOS in same domain

(0) ShareShare
ReportReport
Posted on by 50

Hi..! I installed AOS, application and DB in one Sys-I. and also I installed one AOS in Sys-II and and another AOS in Sys-III. Now my problem is to setup the load balancing. These 3 Systems are in same domain. How can i configure the load balancing and clustering. I gone through Administration Module-->Server Configuration also. when i am selecting Load Balancer option it is thronging an error like "At least one Non Load Balancer AOS instance must exist in a cluster that contains one or more Load Balancer AOS instances".  if i am selecting sys-II or sys-III instance it is giving an error like "The Application Object Server cannot be marked as a Load Balancer while a member of the 'Non Load Balanced AOS Instance'". So anybody please provide a solution for this.  Thank you.

 

*This post is locked for comments

I have the same question (0)
  • 640579632b5c4e6780a624c4771b6f93 Profile Picture
    4,730 on at

    technet.microsoft.com/.../dd362041.aspx

  • 640579632b5c4e6780a624c4771b6f93 Profile Picture
    4,730 on at

    support.microsoft.com/.../859257

  • Suggested answer
    Alan Brown Profile Picture
    145 on at

    Check out the following links - this helped me immensely;

    www.experts-exchange.com/.../Q_26911252.html

    www.experts-exchange.com/.../Q_26919435.html

    hope this helps!

  • Robert Tole Profile Picture
    375 on at

    I am having a simiarl problem with AX2012.

    I do not have access to experts-exchange,  the other links work, but did not resolve the issue.

    The boxes are greyed out for selecting load balancing.  Additional suggestions would be appreciated.

  • Suggested answer
    Community Member Profile Picture
    on at

    i know this is a really old thread, but i was just browsing and thought i'd add a solution because the above solution is only helpful if you have access to expertsexchange, which i dont.

    basically you cannot use the default cluster ("Non load balances aos instance") if you want to use a load balancer.

    So you need to manually create a new cluster.

    - goto admin > setup > cluster configuration

    - create a new line

    - enter a name, call it "client cluster" for example, if its going to be your main cluster for client connections with all your client AOS's in it.

    - once it is created, go to the second tab "map AOS instances to clusters" tab on the same form.

    - you should see listed all you switched on AOS services.

    - you should see a column "cluster name", for any AOS services you want in your new load balanced cluster including the AOS which will actually be your LB machine click in this field and select the new cluster name you created earlier.

    - Once youve set the new cluster to all the relevant AOS's , Tick the "load balancer" column for the AOS you want to use as your LB.

    It will let you tick it now, config complete.

    hope that helps.

  • Community Member Profile Picture
    on at

    Hello,

    I am facing following 2 issues with the AOS clustering setup without a load balancer for Ax 2009

    1) After installing 2nd AOS that points to the same SQL database as being used by 1st AOS, the Ax service on the 2nd AOS stucks on starting. The process of the AOS gets hang with no change in the CPU & memory utilization as seen in the task manager. I reviewed the application logs in event viewer, it just builds only a single ax file and then no log entries of Dynamics AX event gets generated that shows the attempt of starting AOS service on this 2nd node.

    Can anyone help in this regards? Thanks in advance

    2) On the 2nd setup of Ax 2009 clustering, we have installed 2 AOS that points to the same SQL database and the service on the 2nd AOS instance starts well unlike the issue mentioned above. The issue occurs when trying to open the Ax client on both the AOS servers at a same time. Each of the AX server have client configuration pointing to the AOS installed on itself. When opening AX on the 1st AOS instance, it starts fine but we get an error on the 2nd AOS instance,

    ---------------------------

    Logon error

    ---------------------------

    The Application Object Server (AOS) has reached its limit for user sessions or memory consumption. Try again later or connect to a different AOS.

    ---------------------------

    OK  

    ---------------------------

    To resolve this, i have to run the following SQL query on the Ax database

    select * from dbo.sysserversessions where status = 0

    UPDATE  dbo.SYSSERVERSESSIONS SET Status = 0 WHERE Status = 1;

    and restart the services.

    But after this, Ax client opens well on the 2nd AOS instance but throws the same error in Ax client on the 1st AOS server. This means that only one instance stays active and is able to handle the connections at a time.

    We have verified the server configuration & cluster configuration in Ax client and all seems to be well with 1st AOS as a batch server and with no load balancer.

    Need a help for this also.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Neeraj Kumar – Community Spotlight

We are honored to recognize Neeraj Kumar as our Community Spotlight honoree for…

Leaderboard > 🔒一 Microsoft Dynamics AX (Archived)

#1
Priya_K Profile Picture

Priya_K 4

#1
Martin Dráb Profile Picture

Martin Dráb 4 Most Valuable Professional

#3
Sukrut Parab Profile Picture

Sukrut Parab 2 Moderator

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans