How To Bring Up The Coherence Cluster With Loop Back Address, 127.0.0.1? (Doc ID 2420434.1)

Last updated on SEPTEMBER 07, 2023

Applies to:

Goal

Configure Coherence Cluster Member Unicast Settings

Managed Coherence servers communicate with each other using unicast (point-to-point) communication. Unicast is used even if the cluster is configured to use multicast communication. For details on unicast in Coherence, see Developing Applications with Oracle Coherence.

Use the following fields on the Coherence tab to configure unicast settings:

• Unicast Listen Address – This field specifies the address on which the server listens for unicast communication. If no address is provided, then a routable IP address is automatically selected. The address field also supports Classless Inter-Domain Routing (CIDR) notation, which uses a subnet and mask pattern for a local IP address to bind to instead of specifying an exact IP address.
• Unicast Listen Port – This field specifies the ports on which the server listens for unicast communication. A cluster member uses two unicast UDP ports which are automatically assigned from the operating system's available ephemeral port range (as indicated by a value of 0). The default value ensures that Coherence cannot accidently cause port conflicts with other applications. However, if a firewall is required between cluster members (an atypical configuration), then a port can be manually assigned and a second port is automatically selected (port1 +1).
• Unicast Port Auto Adjust – This field specifies whether the port automatically increments if the port is already in use.

How To Bring Up The Coherence Cluster With Loop Back Address, 127.0.0.1?

Solution

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