Applications with fixed port numbers like Mail and Ejabberd are limited to one instance per node, otherwise a port conflict arises at run time. The Software Center should limit the number of instances in the same node for such applications.
The limit may be observed also by the Clone/Move action, available from Software Center. However these advanced cases may prefer to allow a temporary conflict: it is a scenario that needs further evaluation.
Proposed solution
In the Install action, the Software Center prevents the selection of cluster nodes that already have an instance of the conflicting application.
Alternative solutions
The Software Center warns if a node is selected that already has a conflicting app instance.
Applications with fixed port numbers like Mail and Ejabberd are limited to one instance per node, otherwise a port conflict arises at run time. The Software Center should limit the number of instances in the same node for such applications.
The limit may be observed also by the Clone/Move action, available from Software Center. However these advanced cases may prefer to allow a temporary conflict: it is a scenario that needs further evaluation.
Proposed solution
In the Install action, the Software Center prevents the selection of cluster nodes that already have an instance of the conflicting application.
Alternative solutions
The Software Center warns if a node is selected that already has a conflicting app instance.
Additional context
See also