[jboss-jira] [JBoss JIRA] (WFLY-10245) Mod_cluster requires Advertise but Multicast interface is not available

[Radoslav Husar (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-10245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13561706#comment-13561706 ] 

Radoslav Husar commented on WFLY-10245:
---------------------------------------

This is WildFly codebase.

> Mod_cluster requires Advertise but Multicast interface is not available
> -----------------------------------------------------------------------
>
>                 Key: WFLY-10245
>                 URL: https://issues.jboss.org/browse/WFLY-10245
>             Project: WildFly
>          Issue Type: Bug
>            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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