DynamicCluster

A dynamic cluster consists of a group of application servers. If one of the member servers fails, requests will be routed to other members of the cluster. The dynamic cluster membership changes dynamically during runtime according to the number of requests.



Attributes Summary
name : Logical View::java::lang::StringThe name of the dynamic cluster has to be unique among dynamic clusters and clusters across the cell.
operationalMode : Logical View::java::lang::StringThe operational mode of the dynamic cluster dictates how it reacts to varying workloads.
minInstances : intThe minimum number of running instances for a dynamic cluster is set to 1 by default.
maxInstances : intThe maximum number of running instances for a dynamic cluster is set to -1 by default for unbounded maximum.
serverInactivityTime : intThe time to wait in minutes before stopping all running instances in a dynamic cluster during periods of inactivity is set to 0 by default, meaning disabled.
numVerticalInstances : intThe number of instances allow to be started on the same node in the dynamiccluster is set to 0 by default, meaning disabled.
properties : Property * Some runtime components allow a collection of additional properties which can be used for further customization.

Attribute Details

name    -    The name of the dynamic cluster has to be unique among dynamic clusters and clusters across the cell.
     data type:  Logical View::java::lang::String
     default Value:   unspecified



operationalMode    -    The operational mode of the dynamic cluster dictates how it reacts to varying workloads. The mode may be one of three values: automatic, supervised, or manual. Automatic mode allows the WebSphere Dynamic Operations environment to handle placements and provisioning. Supervised mode is a combination of administering by WebSphere Dynamic Operations and the system administrator. The WebSphere Extended Deployment environment makes recommendations to the administrator, which the administrator may implement or disregard. Manual mode indicates no interaction from the WebSphere Dynamic Operations environment.
     data type:  Logical View::java::lang::String
     default Value:   unspecified



minInstances    -    The minimum number of running instances for a dynamic cluster is set to 1 by default. This value is usually acceptable particularly for dynamic clusters that will be running in supervisedor automatic mode. The acceptable entries for this field are integers greater than or equal to 1. In the event a minimum value is set that is excessive, performance degradation will likely occur.
     data type:  int
     default Value:   unspecified



maxInstances    -    The maximum number of running instances for a dynamic cluster is set to -1 by default for unbounded maximum. The acceptable entries for this field are integers equal to -1, or integers greater than or equal to 1.
     data type:  int
     default Value:   unspecified



serverInactivityTime    -    The time to wait in minutes before stopping all running instances in a dynamic cluster during periods of inactivity is set to 0 by default, meaning disabled.This is enabled when the minInstances is set to 0. The acceptable entries for this field are integers greater than or equal to 1.
     data type:  int
     default Value:   unspecified



numVerticalInstances    -    The number of instances allow to be started on the same node in the dynamiccluster is set to 0 by default, meaning disabled. If the nodes in the dynamic cluster have access processing capacity, vertical stacking will allow an application to make effective use of the capacity by starting multiple instances on the same node. The acceptable entries for this field are integers greater than or equal to 1.
     data type:  int
     default Value:   unspecified



properties    -    Some runtime components allow a collection of additional properties which can be used for further customization. See documentation related to the runtime component to determine if special properties can be used.
     data type: Property*


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