[HDFS-10603] Fix flaky tests in org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: hdfs, namenode
• Hadoop Flags: Reviewed
• Assignee: Yiqun Lin
• Reporter: Yongjun Zhang
• Created: 08/Jul/16 17:54
• Updated: 30/Aug/16 01:14
• Resolved: 19/Jul/16 20:53

Description

Test
org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testWithCheckpoint

may fail intermittently as

-------------------------------------------------------
 T E S T S
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Running org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 63.386 sec <<< FAILURE! - in org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
testWithCheckpoint(org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot)  Time elapsed: 15.092 sec  <<< ERROR!
java.io.IOException: Timed out waiting for Mini HDFS Cluster to start
	at org.apache.hadoop.hdfs.MiniDFSCluster.waitClusterUp(MiniDFSCluster.java:1363)
	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2041)
	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2011)
	at org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testWithCheckpoint(TestOpenFilesWithSnapshot.java:94)


Results :

Tests in error: 
  TestOpenFilesWithSnapshot.testWithCheckpoint:94 » IO Timed out waiting for Min...

Tests run: 7, Failures: 0, Errors: 1, Skipped: 0