Forum Discussion

Gopi2018_350205's avatar
Gopi2018_350205
Icon for Nimbostratus rankNimbostratus
Mar 13, 2018

GET API URLs cached at high load

For the external VIP, we have web accelerator cache policy is set with the following - Cache size:100 mb, Max Entries:1000, Max Age:3600 sec, Ignore Headers:All, Insert Age Header:enabled, Aging Rate:9.

 

When there is no load (less traffic), GET URLs are not cached but when the VIP gets traffic then we are noticing GET API URLs are cached and not passing to source (app server).

 

Do I need to have iRule to disable Cache? this web accelerator setting enabled for every VIP but not seeing the issue except that iRule to disable cache.

 

application delivery
BIG-IP
iRules

1 Reply

Sort By
  • Surgeon's avatar
    Surgeon
    Ret. Employee
    Mar 13, 2018

    Hi Gopi, http requests can not be cached. There is no reason for that. Based on your explanation big-ip is doing what it should do. It caching content from pool members and provide the response without pooling it from the back-end server. This is why you do not see GET on the server side. This is acceleration profile was designed for.

     

    What is the actual problem? Can you describe it in more details?