Fusion Middleware Control Help for WebLogic Server

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Domain: Environment: Coherence Clusters

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Coherence provides replicated and distributed data management and caching services that you can use to reliably make an application's objects and data available to all servers in a Coherence cluster. To do this, WebLogic Server retains configuration information used to locate and communicate with a Coherence cluster.

This page displays the Coherence cluster configurations that have been created in this domain.

Column Display

Name Description
Name

Name of this Coherence cluster configuration.

Version

The version of this file.

MBean Attribute:
WeblogicCoherenceBean.Version

Changes take effect after you redeploy the module or restart the server.

Custom Configuration File

The name of a custom Coherence operational configuration override file.

MBean Attribute:
WeblogicCoherenceBean.CustomClusterConfigurationFileName

Changes take effect after you redeploy the module or restart the server.

Logging Enabled

Specifies whether custom Coherence logging is enabled.

MBean Attribute:
CoherenceLoggingParamsBean.Enabled

Changes take effect after you redeploy the module or restart the server.

Clustering Mode

Specifies a clustering mode of either Unicast or Multicast. If multicast is undesirable or unavailable in an environment, or when an environment is not properly configured to support multicast, then setting up the Well Known Addresses (WKA) feature is required. All cluster multicast communication is disabled if WKA is enabled.

MBean Attribute:
CoherenceClusterParamsBean.ClusteringMode

Changes take effect after you redeploy the module or restart the server.

Transport

Specify the underlying transport protocol to use for cluster communication.

MBean Attribute:
CoherenceClusterParamsBean.Transport

Changes take effect after you redeploy the module or restart the server.

Security Framework Enabled

Check if security framework is enabled

MBean Attribute:
CoherenceClusterParamsBean.SecurityFrameworkEnabled

Changes take effect after you redeploy the module or restart the server.

Unicast Listen Address

The IP address for the cluster unicast listener.

This attribute may be used to override the value of the referenced Coherence cluster.

MBean Attribute:
CoherenceServerMBean.UnicastListenAddress

Unicast Listen Port

The port for the cluster unicast listener.

MBean Attribute:
CoherenceServerMBean.UnicastListenPort

Minimum value: 1

Maximum value: 65535

Unicast Port Auto Adjust

Specifies whether the unicast port will be automatically incremented if the port cannot be bound because it is already in use.

MBean Attribute:
CoherenceServerMBean.UnicastPortAutoAdjust

Multicast Listen Address

The IP address for the cluster multicast listener.

MBean Attribute:
CoherenceClusterParamsBean.MulticastListenAddress

Changes take effect after you redeploy the module or restart the server.

Multicast Listen Port

The port for the cluster multicast listener.

MBean Attribute:
CoherenceClusterParamsBean.MulticastListenPort

Minimum value: 1

Maximum value: 65535

Changes take effect after you redeploy the module or restart the server.

Time To Live

Sets the time-to-live (TTL) setting for the multicast message. The TTL setting designates how far multicast UDP/IP packets can travel on a network. The TTL is expressed in terms of how many hops a packet survives; each network interface, router, and managed switch is considered one hop. The TTL value should be set to the lowest integer value that works. Setting the value too high can use unnecessary bandwidth on other LAN segments and can even cause the operating system or network devices to disable multicast traffic.

Typically, setting the TTL value to 1 works on a simple switched backbone. A value of 2 or more may be required on an advanced backbone with intelligent switching. A value of 0 is used for single server clusters that are used for development and testing.

MBean Attribute:
CoherenceClusterParamsBean.TimeToLive

Minimum value: 0

Maximum value: 255

Changes take effect after you redeploy the module or restart the server.

Members

Identifiers for the available Coherence cluster members.

MBean Attribute:
CoherenceClusterRuntimeMBean.Members


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