Forum Discussion

Leo75_313818's avatar
Leo75_313818
Icon for Nimbostratus rankNimbostratus
Mar 14, 2017

How to avoid BigIP persisting connections for 5 minutes

Hello

 

We have a test application running stress and loss tests via JMeter sending http requests on a VIP on the BigIP.

 

I have noticed that BigIP is keeping the connections open for 5 minutes and at some point starts dropping new requests due to exhustion of the number of open connections.

 

I have tried amending http and tcp profiles attributed, mainly around timeout and RTO but it doesn't seem to help.

 

Any idea where to look further would be appreciated.

 

application delivery
BIG-IP
devops

2 Replies

Sort By
  • Vijay_E's avatar
    Vijay_E
    Icon for Cirrus rankCirrus
    Mar 15, 2017

    1. Platform ?

       

    2. How many connections during the point of drop/exhaustion and is this on the client or server side ?

       

    3. If your goal is to just measure the number of HTTP requests that are handled by F5, you may want to disable any persistence configured at VS, if that is possible for your test criteria.

       

    4. By default F5 load balances the very 1st HTTP Request in a TCP connection and subsequent requests are sent to to the same server. If you want to force the F5 to make a load balancing decision for each HTTP Request even within the TCP connection, then enable OneConnect with /32 netmask.