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- minimum 1 GB RAM per Master Controller instance
- CPU typically Intel Xeon 2.33 GHz or equivalent.
- operating system: Windows 7 / 8 / 10, Server 2008 / 2012(R2), Linux RedHat / CentOS / SUSE, Other Unix-like operating systems possible (e.g. HP-UX, Solaris), as long as there is a Java JRE with the correct version available for the OS.
- A JMS provider such as JBoss 4 / 5 or ActiveMQ is required but is allowed to be on a separate server. JBoss 4 and 5 cannot function with JRE 8 but require either JRE 6 or JRE 7. Since the MQ server may need a lot of cpu / io, it is recommended that no other heavy io processes take place on the same machine.
- amount needed: it is recommended to have one machine per master-controller.
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Note that for security reasons, java should never be installed inside a browser. Delft-FEWS only uses the java JRE in embedded form. JBoss 4 and 5 cannot function with JRE 8 but require either JRE 6 or JRE 7. ActiveMQ 5.11 is to be installed with JRE 7.
| Version | Minimum version of JRE required | Operator Client / Forecasting Shell Server / ConfigManager | Master-controller / JBoss / ActiveMQ / Tomcat |
|---|---|---|---|
| Delft-FEWS 2015.01 and newer | Java JRE 8 update 45 | 32bit | 32bit or 64bit |
| Delft-FEWS 2013.01 until 2015.01 | Java JRE 7 update 71 | 32bit | 32bit or 64bit |
| Delft-FEWS versions before 2013.01 | Java JRE 6 update 45 | 32bit | 32bit or 64bit |