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| Component | Description | Hardware requirements | Operating system / Software requirements | Instances |
|---|---|---|---|---|
| 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) / SLES (11.x, 12.x) | 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) / SLES (11.x, 12.x) | 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) / SLES (11.x, 12.x)
| 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) / SLES (11.x, 12.x)
| 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 | 2018.02 requires Tomcat 9 2017.02 and before: Apache Tomcat 6 / 7or higher The web application runs over the Internet, E.g. Internet Explorer , FireFox, Chrome, Safari | 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 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) / SLES (11.x, 12.x) | 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 Separate database instance with same requirements as Central Database for Master Controller. | 1 (optional) |
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