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Component | Description | Hardware requirements | Operating system / Software requirements | Instances |
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Operator Client (Gui) | The Delft-FEWS client used by end-users. | client side, normal pc Screen resolution depends upon the hardware supplied not on the Delft-FEWS software | Windows 7 / 8 / 10, Server 2012(R2), 2016 Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) | As many as there are clients |
ConfigManager
| Control and distribute configuration via the Master Controller database. | client side, normal pc | Windows 7 / 8, Server 2012(R2), 2016 Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) | As many as there are application managers |
Forecasting Shell Server | Executes forecast models and stores the results in the central database. | Minimum 2 GB RAM and 1 one CPU core per Forecasting Shell Server instance. CPU typically Intel Xeon E5606 2.33 GHz or equivalent. Always reserve 1 CPU core for the OS. | Windows 7 / 8 / 10, Server 2012(R2), 2016 Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit)
| recommended minimum 2, add more depending on computational load |
Master Controller Server | Dispatches tasks to the Forecasting Shell Servers. Maintenance of central database. Synchronisation between master-controllers. Sends system alerts.
| Minimum 1 GB RAM per MC instance. CPU typically Intel Xeon 2.33 GHz or equivalent. | Windows 7 / 8 / 10, Server 2012(R2), 2016 Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit)
| 1 or 2 |
Central Database | Central data repository | See Database vendor requirements + 8 GB RAM per DB server including 1 MC DB instance and. CPU typically Intel Xeon E5606 2.33 GHz or equivalent. Add 1 GB RAM per extra MC DB instance. | Oracle 10 / 11 / 12 for versions up to Delft-FEWS 2017.01, Oracle 12c for Delft-FEWS 2017.02 and later PostgreSQL 9.6 MS SQL Server 2012 / 2014 / 2016 MS SQL Server 2012 or later for Delft-FEWS 2017.02 and later. The database instance(s) can be a hosted on an existing database server or cluster. | One instance per Master controller |
Admin Interface | Super-user monitoring, system control and task scheduling | Minimum 1 GB RAM | Requires internet browser with javascript and session cookies enabled. 2018.02 requires Tomcat 9, Internet Explorer 10 or older is not supported. 2017.02 and before: Apache Tomcat 6 or higher The web application runs over the Internet, E.g. Internet Explorer, Edge, Firefox, Chrome. | One instance per Master-Controller machine |
"NFFS/FEWS" Web Server (optional) | For disseminating forecast data and data from other sources | Typically 1 GB RAM per server instance and CPU Intel Xeon 2.33 GHz or equivalent. | Weblogic 11g with an Oracle Database. Weblogic as Application Server . | One instance per Master-Controller machine (optional) |
PiService (optional) | Data access component. | Typically 1 GB RAM per server instance and CPU Intel Xeon 2.33 GHz or equivalent. | Apache Tomcat 6 / 7 or later Preferrably not on the same machine as the master-controller / MQ server. | 1 (optional) |
JMS Server | Messaging communication between FEWS components | No longer present in 2017.02. Minimum 1 GB RAM per JMS instance. CPU typically Intel Xeon 2.33 GHz or equivalent. Minimum 1GB disk space for cache. | Windows 7 / 8, Server 2012(R2) (32bit, 64bit) Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) | One instance per Master controller |
Archive Server (optional) | Stores forecast data, performance indicator data and configurations on a longer time scale than in the central FEWS system. For new projects consider using the Deltares Open Archive instead. | No longer supported in 2017.02, please migrate to the open archive. Ample storage space for Archive files | Apache Tomcat 6 / 7 or later Separate database instance with same requirements as Central Database for Master Controller. | 1 (optional) |
Open Archive | New version of the Archive Server replacing the old one. Stores forecast data, performance indicator data and configurations on a longer time scale than in the central FEWS system. | Ample storage space for Archive files | for 2017.02 or earlier: Apache Tomcat 7 (or later) with JRE version 8 for 2018.02 or later: Apache Tomcat 9 with OpenJDK version 11 Amazon Coretto 11.0.3 | 1 (optional) |
All activities contribute to resource consumption on a computing box, whether that box is hardware or virtual and Delft-FEWS will consume resources when running.
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Version | Base-build | Operator Client Forecasting Shell | Tomcat |
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2019.02 | |||
2018.02 | embedded | openjdk11Amazon Coretto 11.0.23 |
NB. only the jvm.dll and not the java executable is shipped with the base build. The jre release version is listed in windows\jre\release and linux\jre\release.
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