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ziakhan50's avatar
ziakhan50
Icon for Nimbostratus rankNimbostratus
Aug 14, 2024

Single node serving more traffic than other nodes in the pool.

Hi Team - I have a question on the below setup, i am a starter in F5 and recently came across in F5 that one node in the pool is serving more traffic than others.  

 - load balancing method is - Round robin

  • no Persistance configured.

I am not sure what is making one node to send and receive more traffic than other nodes. 

Can someone let me know the reason for this behavior.. Thanks in advance. 

  • can you confirm how you "measure" the traffic here ?

    is it number of connections (TCP) number of requests per second ? are you using HTTP 1.0, 1.1, 2.0 ?

    are you servers using the same stack ?

    Some TCP behaviours on your servers can cause one to close connections faster as an example.

    Do you have OneConnect activated on serverside ?

     

    sorry for not really answering your question but there are so many parameters to take in account before answering, i prefer having more details before providing some valid points to help you identify the reason of this traffic difference.

  • Can you try withe least connect(member) or please provide other details as mentioned above reply. sometime round robin had issues and i tried least connc(member) and its resolved

    • ziakhan50's avatar
      ziakhan50
      Icon for Nimbostratus rankNimbostratus

      I tried disabling the node and enabling it back.  Still same issue, I tried least connection mode too, same.  

  • As there is no persistency, I hope there is no persistency entries saved.. please check and confirm if.. if then aswell your load balancing not working expected, I suggested to raise a support ticket including traffic captures and qkview(also I hope you only having basic profiles in vip(http, standard profiles)