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Address already in use error

During installation of Cordys BOP4 (CU17) we ran into the following problem. I tried to change the client connection point address of the WebGateway, but still no success. Eventually it appeared to be an Apache Config problem. In <Apache_Install_Dir>/conf/extra/httpd-mpm.conf there is a setting. # worker MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_worker_module>     ServerLimit           1     ThreadLimit         200     StartServers          1     MaxClients    ...

Service Orientation: Exception handling pattern

Introduction I am a great fan of the service orientation principles described by Thomas Erl:  http://www.soaprinciples.com/ And also of its patterns:  http://www.soapatterns.org/ This will not be a sucking up story about Thomas, but the need for a pattern on error handling. Layering One of the patterns is that of Service Layering, in which the Services can be categorized in the following layers: The Utility Service Layer consists of Services that are of agnostic functional nature and are not functional related to a business entity or business process. The Entity Service Layer contains Services that are related to business entities and are usually also agnostic. The Task Service Layer is more related to Services that are specific to a particular task or process. Usually you also have a Orchestrated Task Service layer contains Services that orchestrates Services to fulfill a business process. My question is how to deal with errors in the separate layers? Error Types ...