[HDFS-5857] TestWebHDFS#testNamenodeRestart fails intermittently with NPE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0, 3.0.0-alpha1
• Fix Version/s: 2.4.0
• Hadoop Flags: Reviewed
• Assignee: Mit Desai
• Reporter: Mit Desai
• Created: 30/Jan/14 18:41
• Updated: 12/May/16 18:14
• Resolved: 05/Mar/14 22:24

Description

java.lang.AssertionError: There are 1 exception(s):
  Exception 0: org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): null
	at org.apache.hadoop.hdfs.web.JsonUtil.toRemoteException(JsonUtil.java:157)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.validateResponse(WebHdfsFileSystem.java:315)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.access$700(WebHdfsFileSystem.java:105)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.getResponse(WebHdfsFileSystem.java:625)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.run(WebHdfsFileSystem.java:532)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.run(WebHdfsFileSystem.java:421)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.mkdirs(WebHdfsFileSystem.java:701)
	at org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:1816)
	at org.apache.hadoop.hdfs.DFSTestUtil.createFile(DFSTestUtil.java:196)
	at org.apache.hadoop.hdfs.TestDFSClientRetries$6.run(TestDFSClientRetries.java:920)
	at java.lang.Thread.run(Thread.java:722)

	at org.junit.Assert.fail(Assert.java:93)
	at org.apache.hadoop.hdfs.TestDFSClientRetries.assertEmpty(TestDFSClientRetries.java:1031)
	at org.apache.hadoop.hdfs.TestDFSClientRetries.namenodeRestartTest(TestDFSClientRetries.java:951)
	at org.apache.hadoop.hdfs.web.TestWebHDFS.testNamenodeRestart(TestWebHDFS.java:216)

Issue Links

• is duplicated by: HDFS-5839 TestWebHDFS#testNamenodeRestart fails with NullPointerException in trunk
• is related to: HDFS-6183 TestWebHDFS may fail with "Namenode is in startup mode"