[AMBARI-25866] Fix an unit test failure on ambari-metrics-kafka-sink

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: metrics-3.0.0
• Component/s: ambari-metrics
• Labels: pull-request-available
• Epic Link: Ambari Metrics GA
• Assignee: Zhiguo Wu
• Reporter: Kengo Seki
• Created: 24/Feb/23 01:00
• Updated: 01/Mar/23 06:57
• Resolved: 24/Feb/23 07:30

Description

I tried to run unit tests on the release-2.0.0-rc0 branch and ran into the following error:

$ mvn test -f ambari-metrics-kafka-sink/pom.xml

...

Tests run: 3, Failures: 3, Errors: 0, Skipped: 0, Time elapsed: 1.519 sec <<< FAILURE! - in org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest
testReporterStartStop(org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest)  Time elapsed: 0.817 sec  <<< FAILURE!
java.lang.AssertionError: 

  Expectation failure on verify:
    Metrics.defaultRegistry(): expected: 2, actual: 0
	at org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest.testReporterStartStop(KafkaTimelineMetricsReporterTest.java:102)

testReporterStartStopHttps(org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest)  Time elapsed: 0.022 sec  <<< FAILURE!
java.lang.AssertionError: 

  Expectation failure on verify:
    Metrics.defaultRegistry(): expected: 2, actual: 0
	at org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest.testReporterStartStopHttps(KafkaTimelineMetricsReporterTest.java:131)

testMetricsExclusionPolicy(org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest)  Time elapsed: 0.021 sec  <<< FAILURE!
java.lang.AssertionError: 

  Expectation failure on verify:
    Metrics.defaultRegistry(): expected: 2, actual: 0
	at org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporterTest.testMetricsExclusionPolicy(KafkaTimelineMetricsReporterTest.java:151)


Results :

Failed tests: 
  KafkaTimelineMetricsReporterTest.testMetricsExclusionPolicy:151 
  Expectation failure on verify:
    Metrics.defaultRegistry(): expected: 2, actual: 0
  KafkaTimelineMetricsReporterTest.testReporterStartStop:102 
  Expectation failure on verify:
    Metrics.defaultRegistry(): expected: 2, actual: 0
  KafkaTimelineMetricsReporterTest.testReporterStartStopHttps:131 
  Expectation failure on verify:
    Metrics.defaultRegistry(): expected: 2, actual: 0

Tests run: 5, Failures: 3, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  4.238 s
[INFO] Finished at: 2023-02-24T09:46:44+09:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.19:test (default-test) on project ambari-metrics-kafka-sink: There are test failures.

Issue Links

• links to: GitHub Pull Request #104