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hadoop运行mahout问题解决方法

时间:2014-12-05 19:14:19      阅读:1053      评论:0      收藏:0      [点我收藏+]

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 问题1:

  1. java.lang.IncompatibleClassChangeError:Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected
    at org.apache.mahout.common.HadoopUtil.getCustomJobName(HadoopUtil.java:174)
    at org.apache.mahout.common.AbstractJob.prepareJob(AbstractJob.java:614)
    at org.apache.mahout.cf.taste.hadoop.preparation.PreparePreferenceMatrixJob.run(PreparePreferenceMatrixJob.java:73)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)

     

hadoop还不能支持hadoop1
 

 问题2:

  1. [root@crxy170 ~]# mahout hadoop jar jar.jar cmd.client.app.ClientAPP
    MAHOUT_LOCAL is not set; adding HADOOP_CONF_DIR to classpath.
    Running on hadoop, using /usr/lib/hadoop/bin/hadoop and HADOOP_CONF_DIR=/etc/hadoop/conf
    SLF4J:Class path contains multiple SLF4J bindings.
    SLF4J:Found binding in[jar:file:/usr/lib/zookeeper/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J:Found binding in[jar:file:/usr/local/hbase-0.98.8-hadoop2/lib/slf4j-log4j12-1.6.4.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J:Found binding in[jar:file:/usr/local/mahout0.9/mahout-core-0.9-job.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J:See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J:Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
    14/12/0600:10:32 INFO common.AbstractJob:Command line arguments:{--booleanData=[true],--endPhase=[2147483647],--input=[hdfs://192.168.1.170:8020/user/root/userCF],--maxPrefsInItemSimilarity=[500],--maxPrefsPerUser=[10],--maxSimilaritiesPerItem=[100],--minPrefsPerUser=[1],--numRecommendations=[10],--output=[hdfs://192.168.1.170:8020/user/root/userCF/result/],--similarityClassname=[org.apache.mahout.math.hadoop.similarity.cooccurrence.measures.EuclideanDistanceSimilarity],--startPhase=[0],--tempDir=[hdfs://192.168.1.170:8020/tmp/1417795832292]}
    14/12/0600:10:32 INFO common.AbstractJob:Command line arguments:{--booleanData=[true],--endPhase=[2147483647],--input=[hdfs://192.168.1.170:8020/user/root/userCF],--minPrefsPerUser=[1],--output=[hdfs://192.168.1.170:8020/tmp/1417795832292/preparePreferenceMatrix],--ratingShift=[0.0],--startPhase=[0],--tempDir=[hdfs://192.168.1.170:8020/tmp/1417795832292]}
    14/12/0600:10:33 INFO Configuration.deprecation: mapred.input.dir is deprecated.Instead, use mapreduce.input.fileinputformat.inputdir
    14/12/0600:10:33 INFO Configuration.deprecation: mapred.compress.map.output is deprecated.Instead, use mapreduce.map.output.compress
    14/12/0600:10:33 INFO Configuration.deprecation: mapred.output.dir is deprecated.Instead, use mapreduce.output.fileoutputformat.outputdir
    14/12/0600:10:33 INFO client.RMProxy:Connecting to ResourceManager at crxy171.crxy/192.168.1.171:8032
    14/12/0600:10:35 INFO input.FileInputFormat:Total input paths to process :1
    14/12/0600:10:35 INFO mapreduce.JobSubmitter: number of splits:1
    14/12/0600:10:35 INFO mapreduce.JobSubmitter:Submitting tokens for job: job_1417519292729_0030
    14/12/0600:10:35 INFO impl.YarnClientImpl:Submitted application application_1417519292729_0030
    14/12/0600:10:35 INFO mapreduce.Job:The url to track the job: http://crxy171.crxy:8088/proxy/application_1417519292729_0030/
    14/12/0600:10:35 INFO mapreduce.Job:Running job: job_1417519292729_0030
    14/12/0600:10:43 INFO mapreduce.Job:Job job_1417519292729_0030 running in uber mode : false
    14/12/0600:10:43 INFO mapreduce.Job: map 0% reduce 0%
    14/12/0600:10:49 INFO mapreduce.Job: map 100% reduce 0%
    14/12/0600:10:56 INFO mapreduce.Job: map 100% reduce 100%
    14/12/0600:10:56 INFO mapreduce.Job:Job job_1417519292729_0030 completed successfully
    14/12/0600:10:56 INFO mapreduce.Job:Counters:49
    FileSystemCounters
    FILE:Number of bytes read=54
    FILE:Number of bytes written=182573
    FILE:Number of read operations=0
    FILE:Number of large read operations=0
    FILE:Number of write operations=0
    HDFS:Number of bytes read=326
    HDFS:Number of bytes written=187
    HDFS:Number of read operations=6
    HDFS:Number of large read operations=0
    HDFS:Number of write operations=2
    JobCounters
    Launched map tasks=1
    Launched reduce tasks=1
    Rack-local map tasks=1
    Total time spent by all maps in occupied slots (ms)=3962
    Total time spent by all reduces in occupied slots (ms)=4134
    Total time spent by all map tasks (ms)=3962
    Total time spent by all reduce tasks (ms)=4134
    Total vcore-seconds taken by all map tasks=3962
    Total vcore-seconds taken by all reduce tasks=4134
    Total megabyte-seconds taken by all map tasks=4057088
    Total megabyte-seconds taken by all reduce tasks=4233216
    Map-ReduceFramework
    Map input records=21
    Map output records=21
    Map output bytes=84
    Map output materialized bytes=46
    Input split bytes=116
    Combine input records=21
    Combine output records=7
    Reduce input groups=7
    Reduce shuffle bytes=46
    Reduce input records=7
    Reduce output records=7
    SpilledRecords=14
    ShuffledMaps=1
    FailedShuffles=0
    MergedMap outputs=1
    GC time elapsed (ms)=98
    CPU time spent (ms)=2330
    Physical memory (bytes) snapshot=460136448
    Virtual memory (bytes) snapshot=1795633152
    Total committed heap usage (bytes)=355467264
    ShuffleErrors
    BAD_ID=0
    CONNECTION=0
    IO_ERROR=0
    WRONG_LENGTH=0
    WRONG_MAP=0
    WRONG_REDUCE=0
    FileInputFormatCounters
    BytesRead=210
    FileOutputFormatCounters
    BytesWritten=187
    14/12/0600:10:56 INFO client.RMProxy:Connecting to ResourceManager at crxy171.crxy/192.168.1.171:8032
    14/12/0600:10:56 INFO input.FileInputFormat:Total input paths to process :1
    14/12/0600:10:57 INFO mapreduce.JobSubmitter: number of splits:1
    14/12/0600:10:57 INFO mapreduce.JobSubmitter:Submitting tokens for job: job_1417519292729_0031
    14/12/0600:10:57 INFO impl.YarnClientImpl:Submitted application application_1417519292729_0031
    14/12/0600:10:57 INFO mapreduce.Job:The url to track the job: http://crxy171.crxy:8088/proxy/application_1417519292729_0031/
    14/12/0600:10:57 INFO mapreduce.Job:Running job: job_1417519292729_0031
    14/12/0600:11:08 INFO mapreduce.Job:Job job_1417519292729_0031 running in uber mode : false
    14/12/0600:11:08 INFO mapreduce.Job: map 0% reduce 0%
    14/12/0600:11:08 INFO mapreduce.Job:Job job_1417519292729_0031 failed with state FAILED due to:Application application_1417519292729_0031 failed 2 times due to AM Containerfor appattempt_1417519292729_0031_000002 exited with exitCode:1 due to:Exception from container-launch: org.apache.hadoop.util.Shell$ExitCodeException:
    org.apache.hadoop.util.Shell$ExitCodeException:
    at org.apache.hadoop.util.Shell.runCommand(Shell.java:511)
    at org.apache.hadoop.util.Shell.run(Shell.java:424)
    at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:656)
    at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:195)
    at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:300)
    at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:81)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
    Container exited with a non-zero exit code 1
    .Failing this attempt..Failing the application.
    14/12/0600:11:08 INFO mapreduce.Job:Counters:0
    java.io.FileNotFoundException:File does not exist:/tmp/1417795832292/preparePreferenceMatrix/numUsers.bin
    at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:65)
    at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:55)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1726)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1669)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1649)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1621)
    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:482)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:322)
    at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026)
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1986)
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1982)
    at java.security.AccessController.doPrivileged(NativeMethod)
    at javax.security.auth.Subject.doAs(Subject.java:415)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1980)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(NativeMethod)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
    at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73)
    at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1140)
    at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1128)
    at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1118)
    at org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:264)
    at org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:231)
    at org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:224)
    at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1291)
    at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:300)
    at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:296)
    at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
    at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:296)
    at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:764)
    at org.apache.mahout.common.HadoopUtil.readInt(HadoopUtil.java:339)
    at org.apache.mahout.cf.taste.hadoop.item.RecommenderJob.run(RecommenderJob.java:172)
    at org.conan.mymahout.recommendation.ItemCFHadoop.toRunByClient(UnknownSource)
    at cmd.client.app.ClientAPP.main(UnknownSource)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
    Caused by: org.apache.hadoop.ipc.RemoteException(java.io.FileNotFoundException):File does not exist:/tmp/1417795832292/preparePreferenceMatrix/numUsers.bin
    at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:65)
    at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:55)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1726)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1669)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1649)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1621)
    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:482)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:322)
    at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026)
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1986)
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1982)
    at java.security.AccessController.doPrivileged(NativeMethod)
    at javax.security.auth.Subject.doAs(Subject.java:415)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1980)
    

      

http://qnalist.com/questions/4884816/how-to-execute-recommenderjob-without-preference-value

这里有人是这样解决的:数据文件中字段的分割原来是空格,改为逗号。我用的数据文件本来就是逗号。还是报这个错误。

 

 

解决方法:

Apache hadoop

设置方法参考: hadoop2.2+mahout0.9实战 - 推酷 http://www.tuicool.com/articles/ryU7Ff

cdh

版本:5.1.3 经验感觉,cdh和Apache的hadoop在使用的时候,同样的技术在使用的时候经常不同。mahout也该用cloudera自己的。

 

在centos中安装mahout:sudo yum install mahout

 

是cloudera官网提供的

bubuko.com,布布扣

 

bubuko.com,布布扣

vi /etc/hadoop/conf/hadoop-env.sh
在HADOOP_CLASSPATH后添加:/usr/lib/mahout/*:/usr/lib/mahout/lib/*
 
现在可以运行了:
mahout hadoop jar jar.jar  cmd.client.app.ClientAPP

或者hadoop jar jar.jar  cmd.client.app.ClientAPP都能运行

 
 
 
 
 
 
 
 
 
 
 
 
 
 





hadoop运行mahout问题解决方法

标签:des   style   blog   http   io   ar   color   os   使用   

原文地址:http://www.cnblogs.com/xfly/p/4147216.html

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