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Typically in a dual master-controller setup every master-controller has its own machine so that maintenance can take place without offline time.
JVM versions
| Version | Required JRE |
|---|---|
| Delft-FEWS 2015.01 | Java JRE 32bit 8 update 45 |
| Delft-FEWS 2013.01 | Java JRE 32bit 7 update 71 |
| Delft-FEWS versions before 2013.01 | Java JRE 32bit 6 update 45 |