> # Coherence Clusters

> Column Display Related Tasks Related Topics

> 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

> You can show fewer or additional data points on this page by expanding Customize this table and modifying the Column Display list. Each data point displays in its own table column.

> The following table lists all of the data points that you can display in columns on this page.

> Name | Description
> --- | ---
> Name | Name of this Coherence cluster configuration.
> 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.
> Version | The version of this file. MBean Attribute: `WeblogicCoherenceBean.Version` Changes take effect after you redeploy the module or restart the server.
> Unicast Listen Address | The IP address for the cluster unicast listener. MBean Attribute: `CoherenceClusterParamsBean.UnicastListenAddress` Changes take effect after you redeploy the module or restart the server.
> Unicast Listen Port | The port for the cluster unicast listener. MBean Attribute: `CoherenceClusterParamsBean.UnicastListenPort` Minimum value: `1` Maximum value: `65535` Changes take effect after you redeploy the module or restart the server.
> 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: `CoherenceClusterParamsBean.UnicastPortAutoAdjust` Changes take effect after you redeploy the module or restart the server.
> 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 | The time-to-live setting for the multicast message. MBean Attribute: `CoherenceClusterParamsBean.TimeToLive` Minimum value: `0` Maximum value: `255` 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.
> Targets | Servers and clusters on which this Coherence cluster configuration is available.

> Related Tasks

> - Create Coherence clusters
> - Configure Coherence clusters
> - Import a custom cluster configuration
> - Configure Coherence logging
> - Monitor Coherence clusters

> Related Topics

> - Using ActiveCache