Wei-Chiu Chuang created HDFS-9565:
-------------------------------------
Summary:
TestDistributedFileSystem.testLocatedFileStatusStorageIdsTypes is flaky
Key: HDFS-9565
URL: https://issues.apache.org/jira/browse/HDFS-9565
Project: Hadoop HDFS
Issue Type: Bug
Components: fs, test
Affects Versions: 3.0.0
Environment: Jenkins
Reporter: Wei-Chiu Chuang
Assignee: Wei-Chiu Chuang
Priority: Minor
TestDistributedFileSystem.testLocatedFileStatusStorageIdsTypes occasionally
fails with the following error:
https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/699/testReport/org.apache.hadoop.hdfs/TestDistributedFileSystem/testLocatedFileStatusStorageIdsTypes/
{noformat}
FAILED:
org.apache.hadoop.hdfs.TestDistributedFileSystem.testLocatedFileStatusStorageIdsTypes
Error Message:
Unexpected num storage ids expected:<2> but was:<1>
Stack Trace:
java.lang.AssertionError: Unexpected num storage ids expected:<2> but was:<1>
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.apache.hadoop.hdfs.TestDistributedFileSystem.testLocatedFileStatusStorageIdsTypes(TestDistributedFileSystem.java:855)
{noformat}
It appears that this test failed due to race condition: it does not wait for
the file replication to finish, before checking the file's status.
This flaky test can be fixed by using DFSTestUtil.waitForReplication()
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