Hi,
I have installed FlumeNG [1.2] and Hadoop [1.0.3].
I am getting following error while running flume agent with HDFS sink.
2012-10-11 16:55:57,640 WARN hdfs.HDFSEventSink: HDFS IO error
java.io.IOException: java.lang.RuntimeException:
java.lang.ClassNotFoundException: org.apache.hadoop.hdfs.DistributedFileSystem
at
org.apache.flume.sink.hdfs.BucketWriter.doOpen(BucketWriter.java:202)
at
org.apache.flume.sink.hdfs.BucketWriter.access$000(BucketWriter.java:48)
at
org.apache.flume.sink.hdfs.BucketWriter$1.run(BucketWriter.java:155)
at
org.apache.flume.sink.hdfs.BucketWriter$1.run(BucketWriter.java:152)
at
org.apache.flume.sink.hdfs.BucketWriter.runPrivileged(BucketWriter.java:125)
at
org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:152)
at
org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:307)
at
org.apache.flume.sink.hdfs.HDFSEventSink$1.call(HDFSEventSink.java:717)
at
org.apache.flume.sink.hdfs.HDFSEventSink$1.call(HDFSEventSink.java:714)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
org.apache.hadoop.hdfs.DistributedFileSystem
at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1128)
at
org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1729)
at
org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:74)
at
org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:1768)
at
org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1750)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:234)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:189)
at
org.apache.flume.sink.hdfs.BucketWriter.doOpen(BucketWriter.java:186)
... 13 more
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.hdfs.DistributedFileSystem
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at
org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1074)
at
org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1126)
... 20 more
My Fume configuration file :-
##Agent to copy the log from source to HDFS sink
# Define a memory channel called ch1 on agent1
agent1.channels.ch1.type = memory
# Define an EXEC source called src on agent1 and connect it to channel ch1.
agent1.sources.src.channels = ch1
agent1.sources.src.type = exec
agent1.sources.src.command = tail -F /opt/Flume/test/SampleLog
# Define a HDFS sink and connect it to the other end of the same channel.
agent1.sinks.HDFS.channel = ch1
agent1.sinks.HDFS.type = hdfs
agent1.sinks.HDFS.hdfs.path = hdfs://localhost:8020/user/hdfs
agent1.sinks.HDFS.hdfs.fileType = DataStream
agent1.sinks.HDFS.hdfs.writeFormat = Text
agent1.sinks.HDFS.hdfs.filePrefix = FlumeTest
# Finally, now that we've defined all of our components, tell
# agent1 which ones we want to activate.
agent1.channels = ch1
agent1.sources = src
agent1.sinks = HDFS
Both Flume and Hadoop are installed on same box.
Please let me know where I am going wrong. Are Flume[1.2] and Hadoop [1.0.3]
compatible with each other.
Regards,
Rewti
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