Hi,

I am trying to feed a single node HDFS cluster.

But I getting this error :

2014-01-21 08:29:44,426 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.HDFSDataStream.configure(HDFSDataStream.java:56)] Serializer = TEXT, UseRawLocalFileSystem = false
2014-01-21 08:29:44,474 (SinkRunner-PollingRunner-DefaultSinkProcessor) [INFO - org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:219)] Creating hdfs://xyz.16.137.81:54545/flume/FlumeData.1390289384427.tmp
2014-01-21 08:29:44,878 (SinkRunner-PollingRunner-DefaultSinkProcessor) [ERROR - org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:422)] process failed
java.lang.UnsupportedOperationException: This is supposed to be overridden by subclasses.
        at com.google.protobuf.GeneratedMessage.getUnknownFields(GeneratedMessage.java:180)
        at org.apache.hadoop.hdfs.protocol.proto.HdfsProtos$FsPermissionProto.getSerializedSize(HdfsProtos.java:5407)
        at com.google.protobuf.CodedOutputStream.computeMessageSizeNoTag(CodedOutputStream.java:749)
        at com.google.protobuf.CodedOutputStream.computeMessageSize(CodedOutputStream.java:530)
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$CreateRequestProto.getSerializedSize(ClientNamenodeProtocolProtos.java:2371)
        at com.google.protobuf.AbstractMessageLite.toByteString(AbstractMessageLite.java:49)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.constructRpcRequest(ProtobufRpcEngine.java:149)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:193)
        at $Proxy11.create(Unknown Source)
        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:601)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83)
        at $Proxy11.create(Unknown Source)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:192)
        at org.apache.hadoop.hdfs.DFSOutputStream.<init>(DFSOutputStream.java:1298)
        at org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1317)
        at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1242)
        at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1199)
        at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:273)
        at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:262)
        at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:79)
        at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:851)
        at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:832)
        at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:731)
        at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:720)
        at org.apache.flume.sink.hdfs.HDFSDataStream.open(HDFSDataStream.java:80)
        at org.apache.flume.sink.hdfs.BucketWriter$1.call(BucketWriter.java:227)
        at org.apache.flume.sink.hdfs.BucketWriter$1.call(BucketWriter.java:220)
        at org.apache.flume.sink.hdfs.BucketWriter$8$1.run(BucketWriter.java:557)
        at org.apache.flume.sink.hdfs.BucketWriter.runPrivileged(BucketWriter.java:160)
        at org.apache.flume.sink.hdfs.BucketWriter.access$1000(BucketWriter.java:56)
        at org.apache.flume.sink.hdfs.BucketWriter$8.call(BucketWriter.java:554)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)


My conf file :-

Naming the components in this Agent
###############################
httpagent.sources = http-source
httpagent.sinks = local-file-sink
httpagent.channels = ch3

# Define / Configure Source
###############################
httpagent.sources.http-source.type = org.apache.flume.source.http.HTTPSource

httpagent.sources.http-source.channels = ch3
httpagent.sources.http-source.port = 44444


# Local File Sink
###############################
httpagent.sinks.local-file-sink.type = hdfs
httpagent.sinks.local-file-sink.channel = ch3
httpagent.sinks.local-file-sink.hdfs.path = hdfs://xyz.16.137.81:54545/flume
httpagent.sinks.local-file-sink.hdfs.fileType = DataStream
#httpagent.sinks.local-file-sink.hdfs.filePrefix = events-
httpagent.sinks.local-file-sink.hdfs.round = true
httpagent.sinks.local-file-sink.hdfs.roundValue = 1
httpagent.sinks.local-file-sink.hdfs.roundUnit = minute

# Channels
###############################
httpagent.channels.ch3.type = memory
httpagent.channels.ch3.capacity = 1000
httpagent.channels.ch3.transactionCapacity = 100


Apart from that I have these jars for hadoop/hdfs in the /lib folder :-

commons-codec-1.4.jar

commons-configuration-1.6.jar

commons-httpclient-3.1.jar

hadoop-annotations-2.0.0-cdh4.2.0.jar

hadoop-auth-2.0.0-cdh4.2.0.jar

hadoop-client-2.0.0-mr1-cdh4.2.0.jar

hadoop-common-2.0.0-cdh4.2.0.jar

hadoop-core-2.0.0-mr1-cdh4.2.0.jar

hadoop-hdfs-2.0.0-cdh4.2.0.jar
protobuf-java-2.5.0.jar

I believe this error is coming from protobuf-java-2.5.0.jar file.

Any suggestions will be of great help!!!



Thanks,
Himanshu