HI,
By updating changes in flume.conf and flume-env .sh as per below mail I am not
observing the error which was observed earlier , However now I am getting new
error now:
2012-10-15 18:53:13,080 (conf-file-poller-0) [ERROR -
org.apache.flume.conf.file.AbstractFileConfigurationProvider$FileWatcherRunnable.run(AbstractFileConfigurationProvider.java:207)]
Failed to start agent because dependencies were not found in classpath. Error
follows.
java.lang.NoClassDefFoundError:
org/apache/hadoop/io/SequenceFile$CompressionType
at
org.apache.flume.sink.hdfs.HDFSEventSink.configure(HDFSEventSink.java:205)
at org.apache.flume.conf.Configurables.configure(Configurables.java:41)
at
org.apache.flume.conf.properties.PropertiesFileConfigurationProvider.loadSinks(PropertiesFileConfigurationProvider.java:373)
at
org.apache.flume.conf.properties.PropertiesFileConfigurationProvider.load(PropertiesFileConfigurationProvider.java:223)
at
org.apache.flume.conf.file.AbstractFileConfigurationProvider.doLoad(AbstractFileConfigurationProvider.java:123)
at
org.apache.flume.conf.file.AbstractFileConfigurationProvider.access$300(AbstractFileConfigurationProvider.java:38)
at
org.apache.flume.conf.file.AbstractFileConfigurationProvider$FileWatcherRunnable.run(AbstractFileConfigurationProvider.java:202)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at
java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.io.SequenceFile$CompressionType
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)
... 16 more
I also copied the *hadoop-core-1.0.3.jar * to <flume-installation>/lib folder*.
But still getting same error.:
Also I wanted to know that for flume installation does it require 64 bit linux
machine?My Ubuntu machine is 32 bit does it make any difference.
Any suggestions would be very helpful.
Flume.conf
agent1.sources = src
agent1.sinks = HDFS
agent1.channels = ch1
agent1.sources.src.type = exec
agent1.sources.src.command = tail -F /home/hduser/F1/test1.txt
agent1.sources.src.channels = ch1
agent1.sinks.HDFS.type = hdfs
agent1.sinks.HDFS.hdfs.path = hdfs://localhost:8020/user/hduser
agent1.sinks.HDFS.hdfs.fileType = DataStream
agent1.sinks.HDFS.channel = ch1
agent1.sinks.HDFS.hdfs.writeFormat = Text
agent1.sinks.HDFS.hdfs.filePrefix = FlumeTest
agent1.channels.ch1.type = memory
flume-env.sh(Set the following variables in flume-env.sh)
export FLUME_HOME=/home/hduser/F1/apache-flume-1.2.0
export JAVA_HOME=/usr/local/java/jdk1.6.0_26/
export FLUME_CONF_DIR=/home/hduser/F1/apache-flume-1.2.0/conf/
export PATH=$JAVA_HOME/bin:$FLUME_HOME/bin:$PATH
Thanks,
Swati
From: JP [mailto:[email protected]]
Sent: Monday, October 15, 2012 5:21 PM
To: Swati Ramteke
Subject: Re: FlumeNG-Error while writing data from source file to hdfs sink.
HI ,
I hope env vaiables may be like the following (dono your env, but mostly it
will be like this.):
export FLUME_HOME=/home/hduser/F1/apache-flume-1.2.0
export FLUME_CONF_DIR=/home/hduser/F1/apache-flume-1.2.0/conf
export JAVA_HOME=/usr/local/java/jdk1.6.0_26
export PATH=$JAVA_HOME/bin:$FLUME_HOME/bin:$PATH
Thanks
JP
On Mon, Oct 15, 2012 at 5:11 PM, JP
<[email protected]<mailto:[email protected]>> wrote:
Hi Swathi,
Pls check
1. env. variable are correct or not.
2. Please check this flume-ng-node-1.2.0.jar is available or not,
If available check for the permissions.
3.I hope this agent declaration should be in the first statement.
agent1.channels = ch1
agent1.sources = src
agent1.sinks = HDFS
4. Sample configuration i have added:
agent1.sources = src
agent1.sinks = HDFS
agent1.channels = ch1
agent1.sources.src.type = exec
agent1.sources.src.command = tail -F /home/hduser/F1/h.txt
agent1.sources.src.channels = ch1
agent1.sinks.HDFS.type = hdfs
agent1.sinks.HDFS.hdfs.path = hdfs://localhost:8020/user/hduser
agent1.sinks.HDFS.hdfs.fileType = DataStream
agent1.sinks.HDFS..channel = ch1
agent1.channels.ch1.type = memory
Hope this will help!
Thanks
JP
On Mon, Oct 15, 2012 at 3:45 PM, Swati Ramteke
<[email protected]<mailto:[email protected]>> wrote:
Hi,
I am getting following error while running flume agent:
(I wanted to write data form source file to hdfs sink)
hduser@vm-ps7274:~/F1/apache-flume-1.2.0$<mailto:hduser@vm-ps7274:~/F1/apache-flume-1.2.0$>
bin/flume-ng agent -c conf -f conf/flumeHdfs.conf
-Dflume.root.logger=DEBUGG,console -n agent1
Info: Sourcing environment configuration script
/home/hduser/F1/apache-flume-1.2.0/conf/flume-env.sh
+ exec /usr/local/java/jdk1.6.0_26/jre/bin/java -Xmx20m
-Dflume.root.logger=DEBUGG,console -cp
'/home/hduser/F1/apache-flume-1.2.0/conf:/home/hduser/F1/apache-flume-1.2.0/bin/lib/*'
-Djava.library.path= org.apache.flume.node.Application -f conf/flumeHdfs.conf
-n agent1
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/flume/node/Application
Caused by: java.lang.ClassNotFoundException: org.apache.flume.node.Application
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)
Could not find the main class: org.apache.flume.node.Application. Program will
exit.
1. Flume version is: apache-flume-1.2.0
2.Java version "1.6.0_26"
3.Hadoop version: apache Hadoop 1.0.3
Are there any missing files which are need to be download explicitly?
Please find below flume-env.sh and flumeHdfs.conf files:
1.Flume-env.sh<http://1.Flume-env.sh>:
# Enviroment variables can be set here.
# Note that the Flume conf directory is always included in the classpath.
#FLUME_CLASSPATH=""
export FLUME_HOME=/home/hduser/F1/apache-flume-1.2.0/bin
export JAVA_HOME=/usr/local/java/jdk1.6.0_26/jre/bin/java
export FLUME_CONF_DIR=/home/hduser/F1/apache-flume-1.2.0/conf/
export PATH=$JAVA_HOME:$FLUME_HOME/bin:$PATH
2.flumeHdfs.conf:
# 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 /home/hduser/F1/h.txt
# 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/hduser
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
Thanks and Regards,
Swati
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JP
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