[HDFS-8642] Make TestFileTruncate more reliable

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Hadoop Flags: Reviewed
• Assignee: Rakesh Radhakrishnan
• Reporter: Rakesh Radhakrishnan
• Created: 22/Jun/15 06:57
• Updated: 30/Aug/16 01:32
• Resolved: 08/Jul/15 16:32

Description

I've observed TestFileTruncate#setup() function has to be improved by making it more independent. Presently if any of the snapshots related test failures will affect all the subsequent unit test cases. One such error has been observed in the Hadoop-Hdfs-trunk-2163

https://builds.apache.org/job/Hadoop-Hdfs-trunk/2163/testReport/junit/org.apache.hadoop.hdfs.server.namenode/TestFileTruncate/testTruncateWithDataNodesRestart/

org.apache.hadoop.ipc.RemoteException: The directory /test cannot be deleted since /test is snapshottable and already has snapshots
	at org.apache.hadoop.hdfs.server.namenode.FSDirSnapshotOp.checkSnapshot(FSDirSnapshotOp.java:226)
	at org.apache.hadoop.hdfs.server.namenode.FSDirDeleteOp.delete(FSDirDeleteOp.java:54)
	at org.apache.hadoop.hdfs.server.namenode.FSDirDeleteOp.deleteInternal(FSDirDeleteOp.java:177)
	at org.apache.hadoop.hdfs.server.namenode.FSDirDeleteOp.delete(FSDirDeleteOp.java:104)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:3046)
	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.delete(NameNodeRpcServer.java:939)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.delete(ClientNamenodeProtocolServerSideTranslatorPB.java:608)
	at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:636)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:976)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2172)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2168)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1666)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2166)

	at org.apache.hadoop.ipc.Client.call(Client.java:1440)
	at org.apache.hadoop.ipc.Client.call(Client.java:1371)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
	at com.sun.proxy.$Proxy22.delete(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.delete(ClientNamenodeProtocolTranslatorPB.java:540)
	at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:101)
	at com.sun.proxy.$Proxy23.delete(Unknown Source)
	at org.apache.hadoop.hdfs.DFSClient.delete(DFSClient.java:1711)
	at org.apache.hadoop.hdfs.DistributedFileSystem$14.doCall(DistributedFileSystem.java:718)
	at org.apache.hadoop.hdfs.DistributedFileSystem$14.doCall(DistributedFileSystem.java:714)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.delete(DistributedFileSystem.java:714)
	at org.apache.hadoop.hdfs.server.namenode.TestFileTruncate.setup(TestFileTruncate.java:119)

Issue Links

• is related to: HDFS-8729 Fix testTruncateWithDataNodesRestartImmediately occasionally failed