[jira] [Created] (HDFS-11178) TestAddStripedBlockInFBR#testAddBlockInFullBlockReport fails frequently in trunk

["Yiqun Lin (JIRA)" <ji...@apache.org>]

Yiqun Lin created HDFS-11178:
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             Summary: TestAddStripedBlockInFBR#testAddBlockInFullBlockReport fails frequently in trunk
                 Key: HDFS-11178
                 URL: https://issues.apache.org/jira/browse/HDFS-11178
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: test
            Reporter: Yiqun Lin
            Assignee: Yiqun Lin


The test {{TestAddStripedBlockInFBR#testAddBlockInFullBlockReport}} fails easily in trunk. It's easy to reproduce the failure, it fails 2~3 times when I run the test 4~-5 times in my local. Also it fails in the recent Jenkins, The stack infos:
{code}
java.lang.AssertionError: expected:<9> but was:<7>
	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.hdfs.server.namenode.TestAddStripedBlockInFBR.testAddBlockInFullBlockReport(TestAddStripedBlockInFBR.java:108)
{code}
It's easy to have a fix: Use {{GenericTestUtils.waitFor}} to wait the full blocks being reported. 



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