Cluster


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Cluster

Create a Cluster

Click the Clusters node in the left pane. The Clusters table displays in the right pane showing all the clusters defined in the domain.
Click the Create a New Cluster text link. A dialog displays in the right pane showing the tabs associated with configuring a new cluster.
Enter values in the Name, Cluster Address, Default Load Algorithm, and Service Age Threshold attribute fields.
Click the Create button in the lower right corner to create a cluster instance with the name you specified in the Name field. The new instance is added under the Clusters node in the left pane.
Click the Multicast and Replication tabs individually and change the attribute fields or accept the default values as assigned.
Click the Apply button in the lower right corner of each tab to save any changes you made.

Clone a Cluster

Click the Clusters node in the left pane. The Clusters table displays in the right pane showing all the clusters defined in the domain.
Click the Clone icon in the row of the cluster you want to clone. A dialog displays in the right pane showing the tabs associated with cloning a cluster.
Enter values in the Name, Cluster Address, Default Load Algorithm, and Service Age Threshold attribute fields
Click the Create button in the lower right corner to create a cluster instance with the name you specified in the Name field. The new instance is added under the Clusters node in the left pane.
Click the Multicast and Replication tabs individually and change the attribute fields or accept the default values as assigned.
Click the Apply button in the lower right corner of each tab to save any changes you made.

Delete a Cluster

Click the Clusters node in the left pane. The Clusters table displays in the right pane showing all the clusters defined in the domain.
Click the Delete icon in the row of the cluster you want to delete. A dialog displays in the right pane asking you to confirm your deletion request.
Click the Yes button to delete the cluster. The cluster icon under the Clusters node is deleted.

Assign Servers to a Cluster

Click the instance node in the left pane under Clusters to select a cluster for server assignment. A dialog displays in the right pane showing the tabs associated with this instance.
Click the Servers tab.
Select one or more servers in the Available column that you want to assign to the cluster.
Click the mover control to move the servers you selected to the Chosen column.
Click the Apply button in the lower right corner to save your assignments.

Monitor Server Participation in a Cluster

Click the instance node in the left pane under Clusters to select a cluster for server monitoring. A dialog displays in the right pane showing the tabs associated with this instance.
Click the Monitoring tab.
Click the Monitor Server Participation in This Cluster text link. The server table displays in the right pane showing all the servers assigned to this cluster.

Configuration

General

Attribute
Description
Range of Values
Default Value

Name

This attribute reports the name of the cluster.

The cluster name can be up to 256 alphanumeric characters, but may not contain commas or spaces.

Null

Cluster Address

This attribute returns the address to be used by clients to connect to this cluster. This address may be either a DNS host name that maps to multiple IP addresses or a comma separated list of single address host names or IP addresses.

This address may be either a DNS host name that maps to multiple IP addresses or a comma separated list of single address host names or IP addresses.

Null

Default Load Algorithm

The default cluster load algorithm is the algorithm by which the load is distributed. When the last server has been assigned a transaction, the load comes back to the starting server.

Round Robin, Weight- based Round Robin, Random, and Parameter-based Routing

Round Robin

Service Age Threshold

This attribute describes the number of seconds by which the age of two conflicting services must differ before one is considered older than the other.

Integer (seconds)

180

Attribute	Description	Range of Values	Default Value
Name	This attribute reports the name of the cluster.	The cluster name can be up to 256 alphanumeric characters, but may not contain commas or spaces.	Null
Cluster Address	This attribute returns the address to be used by clients to connect to this cluster. This address may be either a DNS host name that maps to multiple IP addresses or a comma separated list of single address host names or IP addresses.	This address may be either a DNS host name that maps to multiple IP addresses or a comma separated list of single address host names or IP addresses.	Null
Default Load Algorithm	The default cluster load algorithm is the algorithm by which the load is distributed. When the last server has been assigned a transaction, the load comes back to the starting server.	Round Robin, Weight- based Round Robin, Random, and Parameter-based Routing	Round Robin
Service Age Threshold	This attribute describes the number of seconds by which the age of two conflicting services must differ before one is considered older than the other.	Integer (seconds)	180

Multicast

Attribute
Description
Range of Values
Default Value

Multicast Address

The cluster multicast address sets the multicast address used by cluster members to communicate with each other. It must be a well-formed IP address.

The valid range of multicast addresses is from 224.0.0.1 to 239.255.255.255

Null

Multicast Send Delay

This attribute returns the number of milliseconds to delay sending message fragments over multicast in order to avoid OS-level buffer overflow.

Integer

12

Multicast TTL

This attribute returns the number of the multicast ttl.

Integer

1

Attribute	Description	Range of Values	Default Value
Multicast Address	The cluster multicast address sets the multicast address used by cluster members to communicate with each other. It must be a well-formed IP address.	The valid range of multicast addresses is from 224.0.0.1 to 239.255.255.255	Null
Multicast Send Delay	This attribute returns the number of milliseconds to delay sending message fragments over multicast in order to avoid OS-level buffer overflow.	Integer	12
Multicast TTL	This attribute returns the number of the multicast ttl.	Integer	1

Servers

Attribute
Description
Range of Values
Default Value

Choose Servers for this Cluster

This attribute allows the user to choose servers to participate in this cluster.

List

Null

Attribute	Description	Range of Values	Default Value
Choose Servers for this Cluster	This attribute allows the user to choose servers to participate in this cluster.	List	Null

Monitoring

Attribute
Description
Range of Values
Default Value

Number of Servers Configured for this Cluster

This attribute returns the number of servers that have been configured to run in this cluster.

Integer

0

Number of Servers Currently Participating in this Cluster

This attribute returns the number of servers running in this cluster.

Integer

0

Attribute	Description	Range of Values	Default Value
Number of Servers Configured for this Cluster	This attribute returns the number of servers that have been configured to run in this cluster.	Integer	0
Number of Servers Currently Participating in this Cluster	This attribute returns the number of servers running in this cluster.	Integer	0

Notes

Attribute
Description
Range of Values
Default Value

Notes

This attribute provides a space for optional user supplied information.

The value must be an alphanumeric string.

Null