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Sep 05, 2011 at 12:33 PM

SAP Dispatcher querying the ICM for groups repeatedly

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Time Remote Host Local Host L.Port Type slot/conn/request

[05/Sep/2011:17:46:51 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 1/59/1 GET /sap/public/info HTTP/1.1

[05/Sep/2011:17:46:56 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 3/60/1 GET /sap/public/icf_info/icr_groups HTTP/1.0

[05/Sep/2011:17:46:56 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 3/61/1 GET /sap/public/icf_info/icr_urlprefix HTTP/1.0

[05/Sep/2011:17:46:56 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 3/62/1 GET /sap/public/icman/ping HTTP/1.0

[05/Sep/2011:17:47:30 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 3/64/1 GET /sap/public/icf_info/icr_groups HTTP/1.0

[05/Sep/2011:17:47:30 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 3/65/1 GET /sap/public/icf_info/icr_urlprefix HTTP/1.0

[05/Sep/2011:17:47:30 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 3/66/1 GET /sap/public/icman/ping HTTP/1.0

[05/Sep/2011:17:47:56 +0530] Webdispatcher_IP- ERP_Server 8000 ABAP:0 1/68/1 GET /sap/public/icf_info/icr_groups HTTP/1.0

... same pattern follows

I have a ERP6 server hosting some web applications and one web dispatcher based on nw 7.3. All my access is working fine but I have a query on the following logs that I see on the ERP ICM. The project is in the initial stages and we do not have any users configured for ICM. However, immediately after I start the webdispatcher, the ICM logs start populating and I can see repeated requests made to the services icr_groups icr_url.

1. I understand that dispatcher is trying to get some information (prob logon groups related for load balancing) but why is it querying so frequently and filling up my bandwidth ? or is it something else ?

2. I had accessed sap/public/ping only once from my browser. Why is it querying repeatedly ? is it trying to update the cache ? How can we stop this as we'll have a number of services. Later, I'll probably have to connect this dispatcher to three more systems and distribute requests based on URL. This will cause an increased load for this traffic. Can we make this efficient.

3. Lastly, is there any way I can block HTTP1.0 connections and allow only HTTP1.1 connections from dispatcher ?

Thanks