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https://issues.apache.org/jira/browse/KAFKA-4765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15868284#comment-15868284
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ASF GitHub Bot commented on KAFKA-4765:
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GitHub user original-brownbear opened a pull request:
https://github.com/apache/kafka/pull/2552
KAFKA-4765: Fixed Intentionally Broken Hosts Resolving to 127.0.53.53
Fixes https://issues.apache.org/jira/browse/KAFKA-4765 by simply using
artificially broken hosts that are not resolved as potential collisions
(127.0.53.53s) by some DNS servers.
This change is the only way to build while using Google's `8.8.8.8` (at
least in my network).
I can't see a downside to making this change, simply makes the build more
stable and portable :)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/original-brownbear/kafka KAFKA-4765
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/2552.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2552
----
commit e62468c43930390fa545d0ff24376d8bd784e691
Author: Armin Braun <m...@obrown.io>
Date: 2017-02-15T09:13:58Z
KAFKA-4765 Fixed Intentionally Broken Hosts Resolving to 127.0.53.53
----
> org.apache.kafka.clients.producer.KafkaProducerTest#testConstructorFailureCloseResource
> and Similar Tests are Failing on some Systems (127.0.53.53 Collision Warning)
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-4765
> URL: https://issues.apache.org/jira/browse/KAFKA-4765
> Project: Kafka
> Issue Type: Bug
> Components: unit tests
> Affects Versions: 0.10.1.1
> Environment: All DNS environments that properly forward 127.0.53.53
> Reporter: Armin Braun
>
> The test
> {code}
> org.apache.kafka.clients.producer.KafkaProducerTest#testConstructorFailureCloseResource
> {code}
> fails on some systems because this below snippet from
> {code}
> org.apache.kafka.clients.ClientUtils#parseAndValidateAddresses
> {code}
> {code}
> InetSocketAddress address = new InetSocketAddress(host,
> port);
> if (address.isUnresolved()) {
> log.warn("Removing server {} from {} as DNS
> resolution failed for {}", url, CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG,
> host);
> } else {
> addresses.add(address);
> }
> {code}
> will add the address *some.invalid.hostname.foo.bar* to the addresses list
> without error since it is resolved to *127.0.53.53* to indicate potential
> future collision of the _.bar_ tld.
> The same issue applies to a few other test cases that try to intentionally
> run into broken hostnames.
> This can (and should) be fixed by using broken hostname examples that do not
> collide. I would suggest just putting a ".local" suffix on all that are
> currently affected by this.
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