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]#
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