[PIG-4823] SparkMiniCluster does not cleanup old conf files during setup

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: spark-branch
• Component/s: spark
• Labels: spork
• Assignee: Pallavi Rao
• Reporter: Pallavi Rao
• Created: 03/Mar/16 10:03
• Updated: 21/Jun/17 09:18
• Resolved: 04/Mar/16 18:20

Description

If some of the tests fail or get killed, new tests will use the old hadoop conf files left behind by the previous tests, causing the following failure:

Caused by: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Could not create staging directory. 
	at org.apache.hadoop.mapreduce.v2.MiniMRYarnCluster.serviceInit(MiniMRYarnCluster.java:165)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
	at org.apache.pig.test.SparkMiniCluster.setupMiniDfsAndMrClusters(SparkMiniCluster.java:93)
	at org.apache.pig.test.MiniGenericCluster.buildCluster(MiniGenericCluster.java:86)
	at org.apache.pig.test.MiniGenericCluster.buildCluster(MiniGenericCluster.java:68)
	at org.apache.pig.test.TestToolsPigServer.<clinit>(TestToolsPigServer.java:42)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
	at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
	at org.apache.hadoop.ipc.Client.call(Client.java:1472)
	at org.apache.hadoop.ipc.Client.call(Client.java:1399)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
	at com.sun.proxy.$Proxy15.mkdirs(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.mkdirs(ClientNamenodeProtocolTranslatorPB.java:539)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
	at com.sun.proxy.$Proxy16.mkdirs(Unknown Source)
	at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:2753)
	at org.apache.hadoop.fs.Hdfs.mkdir(Hdfs.java:311)
	at org.apache.hadoop.fs.FileContext$4.next(FileContext.java:724)
	at org.apache.hadoop.fs.FileContext$4.next(FileContext.java:720)
	at org.apache.hadoop.fs.FSLinkResolver.resolve(FSLinkResolver.java:90)
	at org.apache.hadoop.fs.FileContext.mkdir(FileContext.java:720)
	at org.apache.hadoop.mapreduce.v2.MiniMRYarnCluster.serviceInit(MiniMRYarnCluster.java:163)
Caused by: java.net.ConnectException: Connection refused