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Coherence Cluster: Configuration: General
Configuration Options Related Tasks Related Topics
Use this page to configure properties for this Coherence cluster.
Configuration Options
Name Description Name Name of this Coherence cluster configuration.
Use a Custom Cluster Configuration File Specifies whether this configuration resides in an external custom configuration file.
MBean Attribute:
CoherenceClusterSystemResourceMBean.UsingCustomClusterConfigurationFileChanges take effect after you redeploy the module or restart the server.
Custom Configuration File Name The location of the custom configuration file. Use this field to import a new configuration file.
MBean Attribute:
CoherenceClusterSystemResourceMBean.CustomClusterConfigurationFileNameChanges take effect after you redeploy the module or restart the server.
Unicast Listen Port The port for the cluster unicast listener. A value of 0 indicates that the unicast listener port value will be derived from the server listen port. This value or the derived value will be used only if the CoherenceMemberConfigMBean unicast listen port is 0.
MBean Attribute:
CoherenceClusterParamsBean.UnicastListenPortMinimum value:
0Maximum value:
65535Changes 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.UnicastPortAutoAdjustChanges 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.TransportChanges 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.MulticastListenAddressChanges 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.ClusteringModeChanges take effect after you redeploy the module or restart the server.
Multicast Listen Port The port for the cluster multicast listener.
MBean Attribute:
CoherenceClusterParamsBean.MulticastListenPortMinimum value:
1Maximum value:
65535Changes 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.TimeToLiveMinimum value:
0Maximum value:
255Changes take effect after you redeploy the module or restart the server.
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