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https://issues.apache.org/jira/browse/HIVE-26411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17569961#comment-17569961
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Hankó Gergely commented on HIVE-26411:
--------------------------------------
Merged to master,
[https://github.com/apache/hive/commit/d4f0ef592c1cded474fe0be7077effa6308dc466]
Thanks [~kkasa].
> 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
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> 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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