Armin Braun created KAFKA-4765:
----------------------------------
Summary:
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
Priority: Critical
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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