Constraints on task execution, e.g. a execution group, allowed/disallowed nodes, etc. EXPERIMENTAL.

Item Summary
Name	Type	Multiplicity	Description
group	property string	[0,1]
groupTaskLimit	property int	[0,1]
secondaryGroup	container TaskExecutionGroupConstraintType	[0,-1]	TODO
allowedNode	property string	[0,-1]	Node(s) that this task is allowed to be executed on.
disallowedNode	property string	[0,-1]	Node(s) that this task is not allowed to be executed on.
retryAfter	property duration	[0,1]

Items
- group
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
- groupTaskLimit
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
- secondaryGroup
  
  Flags: RAM,runtime
  
  Multiplicity: [0,-1]
  
  TODO
- allowedNode
  
  Flags: RAM,runtime
  
  Multiplicity: [0,-1]
  
  Node(s) that this task is allowed to be executed on. If not specified, the task is allowed to be executed on any cluster node (if not restricted by disallowedNode item). DEPRECATED and UNUSED. Use NodeType.taskExecutionLimitations instead.
- disallowedNode
  
  Flags: RAM,runtime
  
  Multiplicity: [0,-1]
  
  Node(s) that this task is not allowed to be executed on. DEPRECATED and UNUSED. Use NodeType.taskExecutionLimitations instead.
- retryAfter
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]