Dynamic cluster administrative tasks

Use the dynamic cluster commands to view or edit the dynamic clusters, without using the administrative console.

createDynamicCluster

The createDynamicCluster command creates a new dynamic cluster.

Required parameters
  • -membershipPolicy: Specifies the membership policy. (String, required)
Optional parameters
  • -dynamicClusterProperties: Specifies the dynamic cluster properties. (String, optional) You can specify the following options:
    • operationalMode: Specifies the operational mode. The valid values are: manual, supervised, and automatic.
    • minInstances: Specifies the minimum number of cluster instances as an integer.
    • serverInactivityTime: Specifies the time to wait before stopping instances, in minutes. This value is valid only when the minInstances parameter value is set to 0.
    • maxInstances: Specifies the maximum number of cluster instances as an integer. If you do not want a limit to the number of cluster instances that can start, specify -1.
    • numVerticalInstances: Specifies the number of instances that can start on the same node by creating vertical instances. Specify an integer value.
  • -clusterProperties: Specifies the cluster properties. (String, optional) You can specify the following options:
    • preferLocal: Specifies whether enterprise bean requests are routed to the node on which the client resides when possible. The valid values are true or false.
    • createDomain: Specifies that a replication domain is created for this cluster. Replication domains can be created only for WebSphere® Application Server application servers. The valid values are true or false.
    • coreGroup: Specifies the name of the core group for the dynamic cluster. You only need to specify the core group for WebSphere Application Server application servers. The value can be DefaultCoreGroup or the core group name.
    • templateName: Specifies the name of the server template. The valid input includes the following values:
      • For WebSphere Application Server dynamic clusters: defaultXD, defaultXDZOS, cell_name/node_name/was_server_name
    • [For z/OS operating system] clusterShortName: For z/OS® platforms, specifies the short name of the cluster. After the dynamic cluster has been created, you can use the AdminTask changeClusterShortName command to update this field.
    • [For z/OS operating system] serverSpecificShortNames: For z/OS platforms, specifies the specific short name of cluster member in a comma-separated list format, for example: SSN1,SSN2. Use commas to separate multiple short names. If you do not provide enough short names to be used for all of the cluster members, then the remaining cluster members are assigned generated generic short names, such as BBOS001, BBOS002, and so on. After the dynamic cluster has been created, you can update this list with the serverSpecificShortNames custom property. This property is set on the dynamic cluster. If you want to change this property with scripting after the dynamic cluster has been created, you can use the AdminTask changeServerSpecificShortName command.

Return value

The command returns javax.management.ObjectName value of the dynamic cluster that you created.

Batch mode example usage

Interactive mode example usage

createPHPDynamicCluster

The createPHPDynamicCluster command creates a new PHP dynamic cluster.

Required parameters
  • -membershipPolicy: Specifies the membership policy subexpression. (String, required)
Optional parameters
  • -dynamicClusterProperties: Specifies the dynamic cluster properties. (String, optional) You can specify the following options:
    • operationalMode: Specifies the operational mode. The valid values are: manual, supervised, and automatic.
    • minInstances: Specifies the minimum number of cluster instances as an integer.
    • serverInactivityTime: Specifies the time to wait before stopping instances, in minutes. This value is valid only when the minInstances parameter value is set to 0.
    • maxInstances: Specifies the maximum number of cluster instances as an integer. If you do not want a limit to the number of cluster instances that can start, specify -1.
    • numVerticalInstances: Specifies the number of instances that can start on the same node by creating vertical instances. Specify an integer value.
  • -clusterProperties: Specifies the name of the server template. The valid input includes the templateName value:
    • For PHP dynamic clusters: APACHE13_PHP4, APACHE13_PHP5, APACHE20_PHP4, APACHE20_PHP5, APACHE22_PHP4, APACHE22_PHP5, cellName/nodeName/php_serverName.

Return value

The command returns javax.management.ObjectName value of the dynamic cluster that you created.

Batch mode example usage

Interactive mode example usage

createDynamicClusterFromStaticCluster

The createDynamicClusterFromStaticCluster command creates a new dynamic cluster from an existing static cluster.

Optional parameters
  • -templateName: Specifies the name of the existing static cluster member template. The format of the name must be in the cell_name/node_name/server_name format. If the template is not specified, an existing static cluster member template is randomly chosen. If no members exist, the defaultXD server template is used. (String, optional)
  • -dynamicClusterProperties: Specifies the dynamic cluster properties. (String, optional) You can specify the following options:
    • operationalMode: Specifies the operational mode. The valid values are: manual, supervised, and automatic.
    • minInstances: Specifies the minimum number of cluster instances as an integer.
    • serverInactivityTime: Specifies the time to wait before stopping instances, in minutes. This value is valid only when the minInstances parameter value is set to 0.
    • maxInstances: Specifies the maximum number of cluster instances as an integer. If you do not want a limit to the number of cluster instances that can start, specify -1.

Return value

The command returns the javax.management.ObjectName value of the dynamic cluster that you created.

Batch mode example usage

Interactive mode example usage

createDynamicClusterFromForeignServers

The createDynamicClusterFromForeignServers command creates a new dynamic cluster of assisted life-cycle servers. Create representations of these servers with an administrative task or in the administrative console before you create a dynamic cluster.

Required parameters
  • -foreignServers [[node_name1 server_name1 ][node_name2 server_name2] ...]: Specifies the node and server names of the existing other middleware servers. (String, required)
Optional parameters
  • -dynamicClusterProperties: Specifies the dynamic cluster properties. (String, optional) You can specify the following options:
    • operationalMode: Specifies the operational mode. The valid values are: manual, supervised, and automatic.
    • minInstances: Specifies the minimum number of cluster instances as an integer.
    • serverInactivityTime: Specifies the time to wait before stopping instances, in minutes. This value is valid only when the minInstances parameter value is set to 0.
    • maxInstances: Specifies the maximum number of cluster instances as an integer. If you do not want a limit to the number of cluster instances that can start, specify -1.

Return value

The command returns the javax.management.ObjectName identification of the server type that you updated.

Batch mode example usage

Interactive mode example usage

createODRDynamicCluster

Use the createODRDynamicCluster command to create on demand router dynamic clusters.

Target object

Specifies the name of the dynamic cluster.

Required parameters

membershipPolicy: Specifies the membership policy.

Optional parameters

Batch mode example usage

Interactive mode example usage

addForeignServersToDynamicCluster

The addForeignServersToDynamicCluster command adds foreign servers to an existing dynamic cluster.

Required parameters
  • -foreignServers [[node_name1 server_name1 ][node_name2 server_name1] ...]: Specifies the node and server names of the existing other middleware servers. (String, required)

Return value

The command returns the javax.management.ObjectName identification of the server type that you updated.

Batch mode example usage

Interactive mode example usage

removeForeignServersFromDynamicCluster

The removeForeignServersFromDynamicCluster command removes foreign servers from the dynamic cluster

Required parameters
  • -foreignServers [[node_name1 server_name1 ][node_name2 server_name1] ...]: Specifies the node and server names of the existing other middleware servers. (String, required)

Return value

The command returns the javax.management.ObjectName identification of the server type that you updated.

Batch mode example usage

Interactive mode example usage

deleteDynamicCluster

The deleteDynamicCluster deletes a dynamic cluster from the configuration.

Return value

The command returns the javax.management.ObjectName identification of the dynamic cluster that you deleted.

Batch mode example usage

Interactive mode example usage

getDynamicClusterMembers

The getDynamicClusterMembers command displays the members of the specified dynamic cluster and node name. If the node name is not specified, then all of the members of the dynamic cluster are displayed.

Optional parameters
  • -nodeName: Specifies the name of a node. (String, optional)

Return value

The command returns a list of ClusterMember objects.

Batch mode example usage

Interactive mode example usage

getDynamicClusterOperationalMode

The getDynamicClusterOperationalMode command displays the operational mode of the dynamic cluster.

Return value

The command returns the value of operationalMode. String.

Batch mode example usage

Interactive mode example usage

getDynamicClusterMembershipPolicy

The getDynamicClusterMembershipPolicy command displays the dynamic cluster membership policy.

Return value

The command returns the value of membershipPolicy. String.

Batch mode example usage

Interactive mode example usage

getDynamicClusterServerType

The getDynamicClusterServerType command displays the dynamic cluster server type.

Return value

The command returns the value of serverType. String.

Batch mode example usage

Interactive mode example usage

getDynamicClusterMinInstances

The getDynamicClusterMinInstances command displays the minimum number of cluster instances for the specified dynamic cluster.

Return value

The command returns the value of minInstances. Integer.

Batch mode example usage

Interactive mode example usage

getDynamicClusterMaxInstances

The getDynamicClusterMaxInstances command displays the maximum number of cluster instances for the specified dynamic cluster.

Return value

The command returns the value of maxInstances. Integer.

Batch mode example usage

Interactive mode example usage

getDynamicClusterVerticalInstances

The getDynamicClusterVerticalInstances command displays the number of dynamic cluster vertical stacking of instances on the node.

Return value

The command returns the value of numVerticalInstances. Integer.

Batch mode example usage

Interactive mode example usage

getDynamicClusterIsolationProperties

The getDynamicClusterVerticalInstances command displays the dynamic cluster isolation properties.

Return value

The command returns the value of isolationGroup and strictIsolationEnabled. String.

Batch mode example usage

Interactive mode example usage

listDynamicClusters

The listDynamicClusters command displays all the dynamic clusters in the cell.

Return value

The command returns each of the dynamic cluster names. String.

Batch mode example usage

Interactive mode example usage

listDynamicClusterIsolationGroups

The listDynamicClusterIsolationGroups command displays all the dynamic cluster isolation groups in the cell.

Return value

The command returns a list of the dynamic cluster isolation groups. String.

Batch mode example usage

Interactive mode example usage

listDynamicClusterIsolationGroupMembers

The listDynamicClusterIsolationGroupMembers command displays the dynamic cluster isolation group members for the specified isolation group.

Return value

The command returns a list of the dynamic cluster isolation group members. String.

Batch mode example usage

Interactive mode example usage

modifyDynamicClusterIsolationProperties

The modifyDynamicClusterIsolationProperties command modifies dynamic cluster isolation properties.

Optional parameters
  • -isolationGroup: Specifies the name of the isolation group. (String, optional)
  • -strictIsolationEnabled: Indicates if strict isolation is enabled. (String, optional)

Return value

The return value is void.

Batch mode example usage

Interactive mode example usage

setDynamicClusterOperationalMode

The setDynamicClusterOperationalMode command sets the operational mode for the dynamic cluster.

Required parameters
  • -operationalMode: Specifies the operational mode of the dynamic cluster. Set the value to automatic, manual, or supervised. (String, required)

Return value

The return value is void.

Batch mode example usage

Interactive mode example usage

setDynamicClusterMembershipPolicy

The setDynamicClusterMembershipPolicy command sets the membership policy for the dynamic cluster.

Required parameters

-membershipPolicy
Specifies the membership policy subexpression. (String, required)

Return value

The return value is void.

Batch mode example usage

Interactive mode example usage

setDynamicClusterMinInstances

The setDynamicClusterMinInstances command sets the minimum number of cluster instances for the dynamic cluster.

Required parameters

-minInstances
Specifies the minimum number of cluster instances. (Integer, required)

Return value

The return value is void.

Batch mode example usage

Interactive mode example usage

setDynamicClusterMaxInstances

The setDynamicClusterMaxInstances command sets the maximum number of cluster instances for the dynamic cluster.

Required parameters

-maxInstances
Specifies the minimum number of cluster instances. (Integer, required)

Return value

The return value is void.

Batch mode example usage

Interactive mode example usage

setDynamicClusterVerticalInstances

The setDynamicClusterVerticalInstances command sets the number of dynamic cluster vertical stacking instances on the node.

Required parameters

-numVerticalInstances
Specifies the number of vertical stacking of instances on a node. (Integer, required)

Return value

The return value is void.

Batch mode example usage

Interactive mode example usage

testDynamicClusterMembershipPolicy

The testDynamicClusterMembershipPolicy command tests the dynamic cluster membership policy to see which nodes are returned.

Required parameters

-membershipPolicy
Specifies the membership policy subexpression. (String, required)

Return value

The command returns a String [] list of node names.

Batch mode example usage

Interactive mode example usage

createNonWASDynamicCluster

The createNonWASDynamicCluster command creates a new dynamic cluster of complete life-cycle management servers.

Required parameters
  • -serverType: Specifies the server type. (String, required)

    To see the server types, view the install_root\profiles\dmgr_profile\config\templates\servertypes directory.

  • -membershipPolicy: Specifies the membership policy subexpression. (String, required)
Optional parameters
  • -dynamicClusterProperties: Specifies the dynamic cluster properties. (String, optional) You can specify the following options:
    • operationalMode: Specifies the operational mode. The valid values are: manual, supervised, and automatic.
    • minInstances: Specifies the minimum number of cluster instances as an integer.
    • serverInactivityTime: Specifies the time to wait before stopping instances, in minutes. This value is valid only when the minInstances parameter value is set to 0.
    • maxInstances: Specifies the maximum number of cluster instances as an integer. If you do not want a limit to the number of cluster instances that can start, specify -1.
    • numVerticalInstances: Specifies the number of instances that can start on the same node by creating vertical instances. Specify an integer value.
  • -clusterProperties: Specifies the cluster properties (String, optional)
    • templateName: Specifies the name of the server template. The valid input includes the following values:
      • For PHP dynamic clusters: APACHE13_PHP4, APACHE13_PHP5, APACHE20_PHP4, APACHE20_PHP5, APACHE22_PHP4, APACHE22_PHP5, cellName/nodeName/php_serverName.
      • For WebSphere Application Server Community Edition dynamic clusters: wasce20, cell_name/node_name/wasce_server_name

Return value

The command returns the javax.management.ObjectName value of the dynamic cluster that you created.

Batch mode example usage

Interactive mode example usage

Edit the dynamic cluster server template

Identify the dynamic cluster server template and assign the template to the serverid variable.

Batch mode example usage

You can use the serverid variable to modify, create, or delete configuration objects in the dynamic cluster server template.