Creating a new binding

  1. Go to Applications.
  2. Select an Application.
  3. Select Bindings.
  4. Click Add New.
  5. Specify this information for the binding:
    Name
    Specify a binding name.
    Type
    Select the node type to create a host binding.
    Hosts
    Select one or more hosts or select All, which means that the binding can be started on any host on which the application is deployed.
    Min
    The minimum number of nodes for this binding which should be running in the Grid according to the launch constraints, if the number of running nodes becomes lower than the minimum value set, the Grid will start additional ones.
    Initial
    The initial number of nodes for this binding which should be started when the grid is first started (providing that the application is not offline) or when the application is started if that is later, according to the launch constraints.
    Note: For most use cases the initial setting can be left as is, using the Min and Max settings should be enough for most applications.
    Max
    The maximum number of nodes for this binding which should be started according to the launch constraints. Maximum values are softly-enforced meaning if a condition arises where there are more nodes running than the maximum value, the Grid will not stop running nodes and if necessary they must be stopped manually.
    Constraint
    • Global: The constraints will be applied globally, that is, the number of nodes will be distributed evenly across all hosts to which the binding applies (affected by Preferred Host, see below).
    • Per Host: The constraints will be applied to each host, that is, the number of nodes will be started on all hosts to which the binding applies.
    Preferred Host
    The preferred host on which this binding will be started, if the preferred host is not available when the consistency check is performed, the binding will be started on another host for which this binding is configured. Preferred host is only available when the constraint type is global.
    Note: If the application is connected to one or more host groups, the only difference is that there is a choice of host group (or all host groups) instead of hosts and there is no preferred host selection.