OPMN, which starts Essbase, requires Oracle HTTP Server. Therefore, in a distributed environment, if Essbase Server is installed on a different machine from Foundation Services, Oracle HTTP Server is also installed on the Essbase Server machine and the Foundation Services machine. You must configure Oracle HTTP Server only on the computer that hosts the Web server
On the Essbase Server machine, the Configure Web Server task status is listed as Pending in EPM System Configurator. No change in that status is required.