[HADOOP-13375] o.a.h.security.TestGroupsCaching.testBackgroundRefreshCounters seems flaky

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.8.0, 3.0.0-alpha2, 2.7.6
• Component/s: security, test
• Hadoop Flags: Reviewed
• Assignee: Weiwei Yang Assign to me
• Reporter: Mingliang Liu
• Created: 13/Jul/16 22:48
• Updated: 17/Jul/18 17:17
• Resolved: 01/Sep/16 18:22

Description

Error Message

expected:<1> but was:<0>

Stacktrace

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.security.TestGroupsCaching.testBackgroundRefreshCounters(TestGroupsCaching.java:638)

Issue Links

• is broken by: HADOOP-13263 Reload cached groups in background after expiry
• Is contained by: HDFS-10666 Über-jira: Unit tests should not use fixed sleep interval to wait for conditions
• is related to: HADOOP-15614 TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails