Hi,

My IHS server is currently configured to tune 600 max  clients, I observed from the mpm stats we have max out this number multiple times. Also from the mpm stats I see that there is spike in this number from 1 to 500 all of a sudden and continue increasind even during non-business hours, so I am pretty sure that this is not due to business activity. I believe that there is something backend holding these connections and causing this spike, just not sure how do I go about troubleshooting this.


Can someone please help me in this? I apologize if this needs to be posted in the IHS forum.     

Hi,

  Have you reviewed the access.log file to view from where are you having the requests?

 
Regards

Thanks Gabriel.

All the requests appear to be waiting  in the mod_was* for a response from the appserver. we have not actually determinded the root cause but worked on some tuning on IHS.
 
     

Hi,

  If your request are waiting to WAS you need to review why this request are not been released from WAS.
 
  You not only need to tune the IHS you need to review all your system in conjunction, plugin configuration, WebContainer configuration, Datasoruces pool configurations,...
 
  Review the next links:
 
    Case study: Tuning WebSphere Application Server V7 and V8 for performance
    www.ibm.com/developerworks/websphere/tec...
    
    Tuning performance
    http://pic.dhe.ibm.com/infocenter/wasinfo/v8r5/topic/com.ibm.websphere.nd.multiplatform.doc/ae/tfullp_tun.html
    
  Hope this helps.
 
regards