[jira] [Updated] (HIVE-26411) Fix TestReplicationMetricCollector flakiness

["Hankó Gergely (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-26411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hankó Gergely updated HIVE-26411:
---------------------------------
    Summary: Fix TestReplicationMetricCollector flakiness  (was: TestReplicationMetricCollector is flaky)

> Fix TestReplicationMetricCollector flakiness
> --------------------------------------------
>
>                 Key: HIVE-26411
>                 URL: https://issues.apache.org/jira/browse/HIVE-26411
>             Project: Hive
>          Issue Type: Bug
>          Components: Tests
>            Reporter: Hankó Gergely
>            Assignee: Hankó Gergely
>            Priority: Minor
>
> TestReplicationMetricCollector tests can fail intermittently because 
> ReplicationMetricCollector schedules a MetrikSink thread that consumes the MetricCollector's 
> metricMap regularly and if this happens at the wrong time, the tests, that use the MetricCollector.getInstance().getMetrics() method, can fail.
> Example stack trace:
> {code:java}
> java.lang.AssertionError: expected:<1> but was:<0> at org.junit.Assert.fail(Assert.java:88) at org.junit.Assert.failNotEquals(Assert.java:743) at org.junit.Assert.assertEquals(Assert.java:118) at org.junit.Assert.assertEquals(Assert.java:555) at org.junit.Assert.assertEquals(Assert.java:542) at org.apache.hadoop.hive.ql.parse.repl.metric.TestReplicationMetricCollector.testFailoverReadyDumpMetrics(TestReplicationMetricCollector.java:227){code}



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