[mod_cluster-issues] [JBoss JIRA] (MODCLUSTER-545) Mod_cluster requires Advertise but Multicast interface is not available

[Bogdan Sikora (JIRA)]

Bogdan Sikora created MODCLUSTER-545:
----------------------------------------

             Summary: Mod_cluster requires Advertise but Multicast interface is not available
                 Key: MODCLUSTER-545
                 URL: https://issues.jboss.org/browse/MODCLUSTER-545
             Project: mod_cluster
          Issue Type: Bug
    Affects Versions: 1.3.3.Final
            Reporter: Bogdan Sikora
            Assignee: Radoslav Husar
            Priority: Minor
         Attachments: standalone-ha.xml, standalone.xml

This error message has probably no impact to mod-cluster functionality as tests successfully finished even with this message in workers log. Balancer (standalone.xml) has no error messages. 
[^standalone-ha.xml] (worker)
[^standalone.xml] (balancer)
Issue:
{noformat}
2016-10-24 03:51:18,393 ERROR [org.wildfly.extension.mod_cluster] (ServerService Thread Pool -- 64) WFLYMODCLS0004: Mod_cluster requires Advertise but Multicast interface is not available
{noformat}
Environment:
Windows machine with Tunnel adapter Teredo Tunneling Pseudo-Interface
Scenario:
1. Start Eap (standalone-ha.xml) on Ipv6 address with prefix 2001 (Teredo Tunneling)
2. Look for Mod_cluster Advertising error

Error from ContainerEventHandlerService class
{code}
// Read node to set configuration.
        if (config.getAdvertise()) {
            // There should be a socket-binding.... Well no it needs an advertise socket :-(
            final SocketBinding binding = this.binding.getOptionalValue();
            if (binding != null) {
                config.setAdvertiseSocketAddress(binding.getMulticastSocketAddress());
                config.setAdvertiseInterface(binding.getSocketAddress().getAddress());
                if (!isMulticastEnabled(bindingManager.getValue().getDefaultInterfaceBinding().getNetworkInterfaces())) {
                    ROOT_LOGGER.multicastInterfaceNotAvailable();
                }
            }
        }
...
private boolean isMulticastEnabled(Collection<NetworkInterface> ifaces) {
        for (NetworkInterface iface : ifaces) {
            try {
                if (iface.isUp() && (iface.supportsMulticast() || iface.isLoopback())) {
                    return true;
                }
            } catch (SocketException e) {
                // Ignore
            }
        }
        return false;
    }
{code}




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