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--- en:cobi.time:service_layer_configuration [2025/10/02 14:54] – thuth
+++ en:cobi.time:service_layer_configuration [2025/10/06 10:57] (current) – thuth
@@ Line 1: / Line 1: @@
-====== Service layer configuration ======
+====== Service Layer Configuration ======
+To ensure that COBI.time runs stable and performs efficiently, the Service Layer must be properly configured. \\
+Unfortunately, the default Service Layer configuration delivered by SAP is insufficient and may cause performance issues.
+===== Configuration =====
+The configuration must be changed directly on the HANA server with root privileges. \\
+First, stop the Service Layer using the following command:
+''systemctl stop b1s''
+Then navigate to the directory:
+''/usr/sap/SAPBusinessOne/ServiceLayer/conf/'' \\
+Remove all existing Node Member configuration files, except for a single one:
+''httpd-b1s-lb-member-50001.conf''
+{{:de:cobi.time:koomandozeile1.png?800|}}
+Edit the file ''httpd-b1s-lb.conf'' and remove all additional Balancer Members from the proxy balancer so that only one Node remains in the balancer:
+<code>
+<Proxy balancer://myCluster>
+   BalancerMember http://localhost:50001/b1s route=node1
+   ProxySet stickysession=ROUTEID
+</Proxy>
+</code>
+Additionally, check if there are any Rewrite Rules defined under the RewriteEngine section.
+These rules may still point to old nodes. A typical entry may look like this:
+<code>
+RewriteEngine on
+RewriteRule "^/ping/node$" "/b1s/ping/node?ROUTEID=.node1&target=localhost:50001" [PT]
+RewriteRule "^/ping/node/1$" "/b1s/ping/node?ROUTEID=.node1&target=localhost:50001" [PT]
+RewriteRule "^/ping/node/2$" "/b1s/ping/node?ROUTEID=.node2&target=localhost:50002" [PT]
+RewriteRule "^/ping/node/3$" "/b1s/ping/node?ROUTEID=.node3&target=localhost:50003" [PT]
+RewriteRule "^/ping/node/4$" "/b1s/ping/node?ROUTEID=.node4&target=localhost:50004" [PT]
+RewriteRule "^/ping/node/(.*)$" "/b1s/ping/load-balancer?ROUTEID=.node$1" [PT]
+</code>
+Replace this entire block with the following configuration:
+<code>
+RewriteEngine on
+RewriteRule "^/ping/node$" "/b1s/ping/node?ROUTEID=.node1&nodecount=1" [PT]
+RewriteRule "^/ping/node/$" "/b1s/ping/node?ROUTEID=.node1&nodecount=1" [PT]
+RewriteRule "^/ping/node$(.*)$" "/b1s/ping/node?ROUTEID=.node$1&nodecount=1" [PT]
+</code>
+Next, open the file ''httpd-b1s-lb-member-common.conf'' and adjust the IfModule mpm_prefork_module section as follows:
+<code>
+<IfModule mpm_prefork_module>
+   ServerLimit              10
+   StartServers             10
+   MaxSpareServers          10
+   MinSpareServers          9
+   MaxConnectionsPerChild   20
+   MaxRequestsWorkers       48
+</IfModule>
+</code>
+You can now restart the Service Layer using:
+''systemctl start b1s''
+In the Service Layer Control Center (`https://sap-server-ip:40000/ServiceLayerController`), only one Node Member should now be visible.
+Example Service Layer configuration files (Do not copy or import directly to your HANA server):  \\
+{{ :de:cobi.time:example_service_layer_config_files.zip |}}