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https://issues.apache.org/jira/browse/CASSANDRA-15622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17052359#comment-17052359
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Michael Semb Wever commented on CASSANDRA-15622:
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The change in {{CassandraXMLJUnitResultFormatter}} needs to be undone. It's
just a test formatter class that shouldn't be using any C* code.
> Unit tests throw UnknownHostException trying to use
> `InetAddress.getLocalHost()` instead of `FBUtilities.getLocalAddress()`
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15622
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15622
> Project: Cassandra
> Issue Type: Bug
> Components: Test/unit
> Reporter: Michael Semb Wever
> Assignee: Michael Semb Wever
> Priority: Normal
> Fix For: 2.2.x, 3.0.x, 3.11.x, 4.x
>
>
> Many of the unit tests in Jenkins fail because of the use of
> {{`InetAddress.getLocalHost()`}} in the test classes.
> The Jenkins agents need a public ipaddress (and a hostname associated to it)
> so the Jenkins master can connect to them (agents can be hosted externally,
> by donating third-parties).
> The call to {{`InetAddress.getLocalHost()`}} can resolve to a hostname that
> can't be looked up.
> Not only it likely not listed in {{`/etc/hosts`}}, but we don't want it to be
> either (in case of accidental external port opening if the hostname points to
> the public ipaddress). (This is also ASF policy on this infrastructure.)
> The unit test code needs to replace these code occurrences with the call to
> {{`FBUtilities.getLocalAddress()`}}
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