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https://issues.apache.org/jira/browse/IGNITE-25537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17955137#comment-17955137
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Roman Puchkovskiy commented on IGNITE-25537:
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In Apache Ignite 2, we do socket.setLoopbackMode(false). This works, but the
method is deprecated since Java 14. The deprecation comment suggests to switch
to
socket.setOption(StandardSocketOptions.IP_MULTICAST_LOOP, true/false), but here
comes the problem: socket.setOption() is not portable across Java versions.
socket.setOption(StandardSocketOptions.IP_MULTICAST_LOOP, false) works before
Java 14 (for example, in Java 11), but starting with Java 14, it must be
socket.setOption(StandardSocketOptions.IP_MULTICAST_LOOP, true). So the fix is
to still use socket.setLoopbackMode(false) even though it's deprecated in newer
Java versions - as it still works in all Java versions.
> ItMulticastNodeFinderTest fails
> -------------------------------
>
> Key: IGNITE-25537
> URL: https://issues.apache.org/jira/browse/IGNITE-25537
> Project: Ignite
> Issue Type: Bug
> Reporter: Roman Puchkovskiy
> Assignee: Roman Puchkovskiy
> Priority: Major
> Labels: ignite-3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The corresponding node finder fails to find any nodes in time
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