SAP Web Dispatcher for Portal

[Former Member]

Hi Experts,

SAP Webdispatcher for Portal is not distributing the load across the Portal Server Nodes. Mostly one / two nodes are overloaded in a Application Server.

Any one please help me to understand like what could be the reason for not distibuting the load across all Server Nodes.

Regards,

Baskar.N

[Former Member]

consider re installing your web-dispatcher ..

[vincentlim826]

- identify whether itis abap request or java request or both ? are all servers with the similar performance, meaning that the capacity of each application server is the same ?

- webdisp version and patch ? checkconfig ?

- parameter wdisp/load_balancing_strategy ?

- Below link is for web dispatcher 7.00

http://help.sap.

com/saphelp_nw70/helpdata/en/42/5cfd3b0e59774ee10000000a114084/frameset.

htm

- One suggestion is to try add parameter "wdisp/HTTP/jsessionid_tab_support = 1" to the

web dispatcher profile as per SAP note 878226.

Please note that Load balancing will never achieve a completely balanced

distribution - deviations of 10-20% are tolerable. Also note that Load balancing is carried out at request level and NOT at session level. If requests are stateful and must be returned to their server, they are not involved in load balancing.

In logon balancing, how it determine the server is well-described in

sap help link below.

http://help.sap.

com/saphelp_nw04/helpdata/en/58/d0643e4cce3f7ce10000000a114084/content.

htm

which is mainly refer to saplb cookie and jsessionid.

- Please also try to deactivate the parameter wdisp/auto_refresh temporary if it improves the situation.

Regards,

Vincent