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https://issues.apache.org/jira/browse/CASSANDRA-14114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16513684#comment-16513684
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Jason Brown commented on CASSANDRA-14114:
-----------------------------------------
Interesting. My linux laptop, by default, causes the test to succeed (by not
binding to the socket). However, after I enable {{net.ipv4.ip_nonlocal_bind}},
I can reproduce the failure.
As you've probably figured out, this test is trying to force the code into
[this branch within the exception
handling|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/net/async/NettyFactory.java#L226].
I suppose it's not an essential test and could be removed, or we could check
if OS=linux and net.ipv4.ip_nonlocal_bind=1 if the socket does bind. wdyt?
> uTest failed: NettyFactoryTest.createServerChannel_UnbindableAddress()
> ----------------------------------------------------------------------
>
> Key: CASSANDRA-14114
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14114
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jay Zhuang
> Priority: Minor
> Labels: Testing
>
> {noformat}
> [junit] Testcase:
> createServerChannel_UnbindableAddress(org.apache.cassandra.net.async.NettyFactoryTest):
> FAILED
> [junit] Expected exception:
> org.apache.cassandra.exceptions.ConfigurationException
> [junit] junit.framework.AssertionFailedError: Expected exception:
> org.apache.cassandra.exceptions.ConfigurationException
> [junit]
> [junit]
> [junit] Test org.apache.cassandra.net.async.NettyFactoryTest FAILED
> {noformat}
> I'm unable to reproduce the problem on a mac or circleCI, but on some hosts
> (Linux 4.4.38), it's able to bind IP {{1.1.1.1}}, or any other valid IP
> (which breaks the testcase):
> {noformat}
> ...
> [junit] INFO [main] 2017-12-13 21:20:48,470 NettyFactory.java:190 -
> Starting Messaging Service on /1.1.1.1:9876 , encryption: disabled
> ...
> {noformat}
> Is it because a network/kernal configuration?
> +[~jasobrown]
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