Error while running Part1 of Impatient project
Philip Dogbey
Exception in thread "main" cascading.flow.planner.PlannerException: could not build flow from assembly: [unable to read fields from tap: Hfs["TextLine[['line']->[ALL]]"]["hdfs://localhost:8020/user/philip.dogbey/data/rain.txt"]]
at cascading.flow.planner.FlowPlanner.handleExceptionDuringPlanning(FlowPlanner.java:578)
at cascading.flow.hadoop.planner.HadoopPlanner.buildFlow(HadoopPlanner.java:286)
at cascading.flow.hadoop.planner.HadoopPlanner.buildFlow(HadoopPlanner.java:80)
at cascading.flow.FlowConnector.connect(FlowConnector.java:459)
at impatient.Main.main(Main.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Caused by: cascading.tap.TapException: unable to read fields from tap: Hfs["TextLine[['line']->[ALL]]"]["hdfs://localhost:8020/user/philip.dogbey/data/rain.txt"]
at cascading.scheme.util.DelimitedParser.parseFirstLine(DelimitedParser.java:319)
at cascading.scheme.hadoop.TextDelimited.retrieveSourceFields(TextDelimited.java:975)
at cascading.tap.Tap.retrieveSourceFields(Tap.java:366)
at cascading.flow.BaseFlow.retrieveSourceFields(BaseFlow.java:230)
at cascading.flow.BaseFlow.<init>(BaseFlow.java:196)
at cascading.flow.hadoop.HadoopFlow.<init>(HadoopFlow.java:98)
at cascading.flow.hadoop.planner.HadoopPlanner.createFlow(HadoopPlanner.java:231)
at cascading.flow.hadoop.planner.HadoopPlanner.buildFlow(HadoopPlanner.java:244)
... 9 more
Caused by: java.net.ConnectException: Call From philipdogbey.rlcorp.local/10.10.27.27 to localhost:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
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$Invoker.invoke(ProtobufRpcEngine.java:232)
at com.sun.proxy.$Proxy14.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:752)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
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:187)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy15.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1988)
at org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1118)
at org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1114)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1114)
at org.apache.hadoop.fs.Globber.getFileStatus(Globber.java:57)
at org.apache.hadoop.fs.Globber.glob(Globber.java:252)
at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1625)
at cascading.tap.hadoop.Hfs.resourceExists(Hfs.java:588)
at cascading.tap.hadoop.Hfs.resourceExists(Hfs.java:109)
at cascading.scheme.util.DelimitedParser.parseFirstLine(DelimitedParser.java:294)
... 16 more
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
at org.apache.hadoop.ipc.Client.call(Client.java:1438)
Andre Kelpe
did not tell us what kind of setup you are using, but it looks like
your configuration expects a pseudo-distributed setup, which you
probably did not configure correctly. Please check your configuration
files and make sure you started the services on the right servers.
- Andre
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André Kelpe
an...@concurrentinc.com
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