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In case an existing FEWS web service has to be migrated to the 2017.02 or later version, the following changes should be taken into account.
Installation directory
The Fews Web Services are now installed in the ${catalina.home}/webapps folder instead of the ${catalina.home}/fews folder.
Derby Local datastore
Running the FEWS Web Services in standalone mode is only supported for the Derby local datastore with limited functionality. Please see the previous Installation section if an existing non-Derby local datastore needs to be converted to Derby using the Database replication functionality of FEWS.
Default PI Version
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It is advisable to cleanup the ${catalina.home}/temp and ${catalina.home}/work folder. N.B. Don't delete the folders themselves, only their content!
In case there is an old FewsPIService.war in the fews folder, please remove the old FewsPIService.war.
If there is a FewsPIService folder in the ${catalina.home}/webapps folder, please remove this folder.
DAC
Previously the FEWS Web services required a DAC.jar to be installed. Since 2017.02 this component is obsolete and should be removed from existing tomcat installations. See also the tomcat installation guide.
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