thank you for all your replies, I compare the 0.5 classpath with the 0.4
classpath, found that, 0.4 only contains the
/usr/local/mahout-distribution-0.4/conf in the hadoopclasspath, but 0.5, all
jars in the hadoopclasspath,
I modified the mahout script in MAHOUT_HOME/bin like this:
FROM
export HADOOP_CLASSPATH=$MAHOUT_CONF_DIR:${HADOOP_CLASSPATH}:$CLASSPATH
TO
export HADOOP_CLASSPATH=${HADOOP_CLASSPATH}:$MAHOUT_CONF_DIR
0.5 works now, really a strange problem ....
thank you again for your help
2011/8/5 Ted Dunning <[email protected]>
> Some other systems such as hbase actually provide a classpath sub-command
> that dumps out the classpath with hints about how it is that way.
>
> That can help enormously in debugging.
>
>
> On Fri, Aug 5, 2011 at 11:30 AM, Sean Owen <[email protected]> wrote:
>
>> Like I said, it's a classpath issue. The script likely changed between 0.4
>> and 0.5, so you need to look at what its classpath is, where it's looking
>> for jars and understand why it is not finding what you need in your
>> environment.
>> It works out of the box, so I think it is an issue specific to you. Unless
>> you can provide more info, that's about all one can say.
>>
>>
>> On Fri, Aug 5, 2011 at 4:28 PM, air <[email protected]> wrote:
>>
>>> but, what should I do now , it is a very strange problem, 0.4 works well,
>>> but 0.5 does not ....[?]
>>> 2011/8/5 Sean Owen <[email protected]>
>>>
>>>> OK, well the underlying problem remains that it cannot find the
>>>> mahout-math
>>>> jar file in the classpath. It's not a problem with 0.5 per se, but
>>>> something
>>>> to do with finding the jars.
>>>>
>>>> On Fri, Aug 5, 2011 at 12:52 PM, air <[email protected]> wrote:
>>>>
>>>> > hi, Sean, for 0.4 and 0.5, I use the same settings ,in fact no
>>>> settings, I
>>>> > just download them and unpack them, and then use them to do some
>>>> test...
>>>> >
>>>> > anyone meet this kind of problem ? thank you .
>>>> >
>>>> >
>>>> > 2011/8/5 Sean Owen <[email protected]>
>>>> >
>>>> > > I think you have changed your classpath to use 0.5, and in your new
>>>> > > classpath, you are not including all the jars. You probably need
>>>> core,
>>>> > > math,
>>>> > > and collections at minimum.
>>>> > >
>>>> > > On Fri, Aug 5, 2011 at 12:40 PM, air <[email protected]> wrote:
>>>> > >
>>>> > > > when I use mahout 0.4 to execute on a hadoop cluster:
>>>> > > > *
>>>> > > > ./mahout org.apache.mahout.clustering.syntheticcontrol.canopy.Job
>>>> > --input
>>>> > > > /mahout/input --output /mahout/output13 -t1 80.0 -t2 50.0*
>>>> > > >
>>>> > > > it works very well......
>>>> > > >
>>>> > > > but when I use mahout 0.5 to execute *the same command(if omitting
>>>> the
>>>> > > > output directory...):*
>>>> > > >
>>>> > > > *./mahout org.apache.mahout.clustering.syntheticcontrol.canopy.Job
>>>> > > --input
>>>> > > > /mahout/input --output /mahout/output14 -t1 80.0 -t2 50.0*
>>>> > > >
>>>> > > > it reports CLASSNOTFOUND exception, what cause this happen, how to
>>>> > solve
>>>> > > it
>>>> > > > ... I am really confused....:
>>>> > > >
>>>> > > >
>>>> > > > [root@x06 bin]# ./mahout
>>>> > > > org.apache.mahout.clustering.syntheticcontrol.canopy.Job --input
>>>> > > > /mahout/input --output /mahout/output15 -t1 80.0 -t2 50.0
>>>> > > > Running on hadoop, using HADOOP_HOME=/usr/lib/hadoop
>>>> > > > No HADOOP_CONF_DIR set, using /usr/lib/hadoop/src/conf
>>>> > > > 11/08/05 19:36:43 WARN driver.MahoutDriver: No
>>>> > > > org.apache.mahout.clustering.syntheticcontrol.canopy.Job.props
>>>> found on
>>>> > > > classpath, will use command-line arguments only
>>>> > > > 11/08/05 19:36:43 INFO canopy.Job: Running with only user-supplied
>>>> > > > arguments
>>>> > > > 11/08/05 19:36:43 INFO common.AbstractJob: Command line arguments:
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> {--distanceMeasure=org.apache.mahout.common.distance.SquaredEuclideanDistanceMeasure,
>>>> > > > --endPhase=2147483647, --input=/mahout/input,
>>>> > --output=/mahout/output15,
>>>> > > > --startPhase=0, --t1=80.0, --t2=50.0, --tempDir=temp}
>>>> > > > 11/08/05 19:37:09 WARN mapred.JobClient: Use GenericOptionsParser
>>>> for
>>>> > > > parsing the arguments. Applications should implement Tool for the
>>>> same.
>>>> > > > 11/08/05 19:37:43 INFO input.FileInputFormat: Total input paths to
>>>> > > process
>>>> > > > :
>>>> > > > 1
>>>> > > > 11/08/05 19:37:43 INFO lzo.GPLNativeCodeLoader: Loaded native gpl
>>>> > library
>>>> > > > 11/08/05 19:37:43 INFO lzo.LzoCodec: Successfully loaded &
>>>> initialized
>>>> > > > native-lzo library [hadoop-lzo rev
>>>> > > > 2991c7d00d4b50494958eb1c8e7ef086d24853ea]
>>>> > > > 11/08/05 19:37:54 INFO mapred.JobClient: Running job:
>>>> > > job_201108041755_7040
>>>> > > > 11/08/05 19:37:55 INFO mapred.JobClient: map 0% reduce 0%
>>>> > > > 11/08/05 19:38:19 INFO mapred.JobClient: map 100% reduce 0%
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Job complete:
>>>> > > > job_201108041755_7040
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Counters: 13
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Job Counters
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient:
>>>> SLOTS_MILLIS_MAPS=4911
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Total time spent by
>>>> all
>>>> > > > reduces
>>>> > > > waiting after reserving slots (ms)=0
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Total time spent by
>>>> all
>>>> > maps
>>>> > > > waiting after reserving slots (ms)=0
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Launched map tasks=1
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Data-local map
>>>> tasks=1
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient:
>>>> SLOTS_MILLIS_REDUCES=4017
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: FileSystemCounters
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient:
>>>> HDFS_BYTES_READ=288490
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient:
>>>> FILE_BYTES_WRITTEN=49166
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient:
>>>> HDFS_BYTES_WRITTEN=335470
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Map-Reduce Framework
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Map input records=600
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Spilled Records=0
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: Map output
>>>> records=600
>>>> > > > 11/08/05 19:38:21 INFO mapred.JobClient: SPLIT_RAW_BYTES=116
>>>> > > > 11/08/05 19:38:21 INFO canopy.CanopyDriver: Build Clusters Input:
>>>> > > > /mahout/output15/data Out: /mahout/output15 Measure:
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.common.distance.SquaredEuclideanDistanceMeasure@4dc1c92bt1
>>>> > > > :
>>>> > > > 80.0 t2: 50.0
>>>> > > > 11/08/05 19:38:21 WARN mapred.JobClient: Use GenericOptionsParser
>>>> for
>>>> > > > parsing the arguments. Applications should implement Tool for the
>>>> same.
>>>> > > > 11/08/05 19:38:26 INFO input.FileInputFormat: Total input paths to
>>>> > > process
>>>> > > > :
>>>> > > > 1
>>>> > > > 11/08/05 19:38:31 INFO mapred.JobClient: Running job:
>>>> > > job_201108041755_7056
>>>> > > > 11/08/05 19:38:32 INFO mapred.JobClient: map 0% reduce 0%
>>>> > > > 11/08/05 19:38:46 INFO mapred.JobClient: Task Id :
>>>> > > > attempt_201108041755_7056_m_000000_0, Status : FAILED
>>>> > > > Error: java.lang.ClassNotFoundException:
>>>> org.apache.mahout.math.Vector
>>>> > > > 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:943)
>>>> > > > at
>>>> > > >
>>>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:994)
>>>> > > > at
>>>> > > >
>>>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1020)
>>>> > > > at
>>>> > > >
>>>> >
>>>> org.apache.hadoop.mapred.JobConf.getMapOutputValueClass(JobConf.java:747)
>>>> > > > at
>>>> > > >
>>>> >
>>>> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:819)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:557)
>>>> > > > at
>>>> > org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:639)
>>>> > > > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
>>>> > > > at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
>>>> > > > at java.security.AccessController.doPrivileged(Native
>>>> Method)
>>>> > > > at javax.security.auth.Subject.doAs(Subject.java:396)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
>>>> > > > at org.apache.hadoop.mapred.Child.main(Child.java:264)
>>>> > > >
>>>> > > > 11/08/05 19:38:52 INFO mapred.JobClient: Task Id :
>>>> > > > attempt_201108041755_7056_m_000000_1, Status : FAILED
>>>> > > > Error: java.lang.ClassNotFoundException:
>>>> org.apache.mahout.math.Vector
>>>> > > > 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:943)
>>>> > > > at
>>>> > > >
>>>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:994)
>>>> > > > at
>>>> > > >
>>>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1020)
>>>> > > > at
>>>> > > >
>>>> >
>>>> org.apache.hadoop.mapred.JobConf.getMapOutputValueClass(JobConf.java:747)
>>>> > > > at
>>>> > > >
>>>> >
>>>> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:819)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:557)
>>>> > > > at
>>>> > org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:639)
>>>> > > > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
>>>> > > > at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
>>>> > > > at java.security.AccessController.doPrivileged(Native
>>>> Method)
>>>> > > > at javax.security.auth.Subject.doAs(Subject.java:396)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
>>>> > > > at org.apache.hadoop.mapred.Child.main(Child.java:264)
>>>> > > >
>>>> > > > 11/08/05 19:39:00 INFO mapred.JobClient: Task Id :
>>>> > > > attempt_201108041755_7056_m_000000_2, Status : FAILED
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Job complete:
>>>> > > > job_201108041755_7056
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Counters: 8
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Job Counters
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient:
>>>> SLOTS_MILLIS_MAPS=7530
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Total time spent by
>>>> all
>>>> > > > reduces
>>>> > > > waiting after reserving slots (ms)=0
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Total time spent by
>>>> all
>>>> > maps
>>>> > > > waiting after reserving slots (ms)=0
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Rack-local map
>>>> tasks=3
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Launched map tasks=4
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Data-local map
>>>> tasks=1
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient: Failed map tasks=1
>>>> > > > 11/08/05 19:39:12 INFO mapred.JobClient:
>>>> SLOTS_MILLIS_REDUCES=2464
>>>> > > > Exception in thread "main" java.lang.InterruptedException: Canopy
>>>> Job
>>>> > > > failed
>>>> > > > processing /mahout/output15/data
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.clustering.canopy.CanopyDriver.buildClustersMR(CanopyDriver.java:355)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.clustering.canopy.CanopyDriver.buildClusters(CanopyDriver.java:246)
>>>> > > > at
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.clustering.canopy.CanopyDriver.run(CanopyDriver.java:143)
>>>> > > > at
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.clustering.canopy.CanopyDriver.run(CanopyDriver.java:161)
>>>> > > > at
>>>> > > >
>>>> >
>>>> org.apache.mahout.clustering.syntheticcontrol.canopy.Job.run(Job.java:92)
>>>> > > > at
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.clustering.syntheticcontrol.canopy.Job.run(Job.java:127)
>>>> > > > at
>>>> org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>>>> > > > at
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.mahout.clustering.syntheticcontrol.canopy.Job.main(Job.java:49)
>>>> > > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>>>> Method)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>> > > > at java.lang.reflect.Method.invoke(Method.java:597)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
>>>> > > > at
>>>> > > >
>>>> org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
>>>> > > > at
>>>> > > org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:187)
>>>> > > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>>>> Method)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>> > > > at
>>>> > > >
>>>> > > >
>>>> > >
>>>> >
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>> > > > at java.lang.reflect.Method.invoke(Method.java:597)
>>>> > > > at org.apache.hadoop.util.RunJar.main(RunJar.java:186)
>>>> > > > [root@x06 bin]#
>>>> > > > --
>>>> > > > Knowledge Mangement .
>>>> > > >
>>>> > >
>>>> >
>>>> >
>>>> >
>>>> > --
>>>> > Knowledge Mangement .
>>>> >
>>>>
>>>
>>>
>>>
>>> --
>>> Knowledge Mangement .
>>>
>>>
>>
>
--
Knowledge Mangement .
