인프런 커뮤니티 질문&답변

ChangWon Jeong님의 프로필 이미지

작성한 질문수

15일간의 빅데이터 파일럿 프로젝트

분석 실행 5단계 - 머하웃 추천 - 스마트카 차량용품 추천

해결된 질문

21.11.21 04:09 작성

·

206

1

머하웃 추천기의 입력 데이터로 사용하기 위해 HDFS에 경로분석 5단계 - 머하웃과 추천 - 스마트카 차량용품 추천을 실습하고 있습니다.
실습진행중에 제가 무엇을 잘못 했는지 잘 실행중이었는데 에러가 발생하기 시작했습니다.
 
1) “스마트카 차량용품 구매 이력”(managed_smartcar_item_buylist_info) 데이터를 머하웃 추천기에서 사용가능한 형식으로 재구성한 다음, 하이브 에디터에서 파일생성 쿼리 실행 ok.
2) 하이브에서 로컬디스크로 생성된 추천기의 입력 데이터로 사용될 파일이 정상적으로 만들어졌는지 확인 more 명령으로 확인 ok.
3) 생성한 파일을 머하웃 추천기의 입력 데이터로 사용하기 위해 HDFS에 경로 생성하고 파일 저장 ok.
4) 머하웃 추천 분석기를 실행하면....... 처음에는 잘 실행되는 듯 하다 결국 에러 메시지가 나타납니다. 명령실행후 처음 메시지부터 마지막 메시지까지 첨부하였습니다.

[root@server02 pilot-pjt]# mahout recommenditembased -i /pilot-pjt/mahout/recommendation/input/item_buylist.txt -o /pilot-pjt/mahout/recommendation/output/ -s SIMILARITY_COCCURRENCE -n 3

Running on hadoop, using /usr/bin/hadoop and HADOOP_CONF_DIR=

MAHOUT-JOB: /home/pilot-pjt/mahout/mahout-examples-0.13.0-job.jar

WARNING: Use "yarn jar" to launch YARN applications.

21/11/21 03:30:22 INFO AbstractJob: Command line arguments: {--booleanData=[false], --endPhase=[2147483647], --input=[/pilot-pjt/mahout/recommendation/input/item_buylist.txt], --maxPrefsInItemSimilarity=[500], --maxPrefsPerUser=[10], --maxSimilaritiesPerItem=[100], --minPrefsPerUser=[1], --numRecommendations=[3], --output=[/pilot-pjt/mahout/recommendation/output/], --similarityClassname=[SIMILARITY_COCCURRENCE], --startPhase=[0], --tempDir=[temp]}

21/11/21 03:30:22 INFO AbstractJob: Command line arguments: {--booleanData=[false], --endPhase=[2147483647], --input=[/pilot-pjt/mahout/recommendation/input/item_buylist.txt], --minPrefsPerUser=[1], --output=[temp/preparePreferenceMatrix], --ratingShift=[0.0], --startPhase=[0], --tempDir=[temp]}

21/11/21 03:30:22 INFO deprecation: mapred.input.dir is deprecated. Instead, use mapreduce.input.fileinputformat.inputdir

21/11/21 03:30:22 INFO deprecation: mapred.compress.map.output is deprecated. Instead, use mapreduce.map.output.compress

21/11/21 03:30:22 INFO deprecation: mapred.output.dir is deprecated. Instead, use mapreduce.output.fileoutputformat.outputdir

21/11/21 03:30:23 INFO RMProxy: Connecting to ResourceManager at server01.hadoop.com/192.168.56.101:8032

21/11/21 03:30:28 INFO JobResourceUploader: Disabling Erasure Coding for path: /user/root/.staging/job_1637424392789_0002

21/11/21 03:30:32 INFO FileInputFormat: Total input files to process : 1

21/11/21 03:30:32 INFO JobSubmitter: number of splits:1

21/11/21 03:30:33 INFO JobSubmitter: Submitting tokens for job: job_1637424392789_0002

21/11/21 03:30:33 INFO JobSubmitter: Executing with tokens: []

21/11/21 03:30:34 INFO Configuration: resource-types.xml not found

21/11/21 03:30:34 INFO ResourceUtils: Unable to find 'resource-types.xml'.

21/11/21 03:30:34 INFO YarnClientImpl: Submitted application application_1637424392789_0002

21/11/21 03:30:34 INFO Job: The url to track the job: http://server01.hadoop.com:8088/proxy/application_1637424392789_0002/

21/11/21 03:30:34 INFO Job: Running job: job_1637424392789_0002

21/11/21 03:31:34 INFO Job: Job job_1637424392789_0002 running in uber mode : false

21/11/21 03:31:34 INFO Job:  map 0% reduce 0%

21/11/21 03:32:18 INFO Job:  map 100% reduce 0%

21/11/21 03:32:43 INFO Job:  map 100% reduce 100%

21/11/21 03:32:44 INFO Job: Job job_1637424392789_0002 completed successfully

21/11/21 03:32:45 INFO Job: Counters: 54

        File System Counters

                FILE: Number of bytes read=269

                FILE: Number of bytes written=442733

                FILE: Number of read operations=0

                FILE: Number of large read operations=0

                FILE: Number of write operations=0

                HDFS: Number of bytes read=2072067

                HDFS: Number of bytes written=643

                HDFS: Number of read operations=8

                HDFS: Number of large read operations=0

                HDFS: Number of write operations=2

                HDFS: Number of bytes read erasure-coded=0

        Job Counters

                Launched map tasks=1

                Launched reduce tasks=1

                Data-local map tasks=1

                Total time spent by all maps in occupied slots (ms)=40610

                Total time spent by all reduces in occupied slots (ms)=18665

                Total time spent by all map tasks (ms)=40610

                Total time spent by all reduce tasks (ms)=18665

                Total vcore-milliseconds taken by all map tasks=40610

                Total vcore-milliseconds taken by all reduce tasks=18665

                Total megabyte-milliseconds taken by all map tasks=41584640

                Total megabyte-milliseconds taken by all reduce tasks=19112960

        Map-Reduce Framework

                Map input records=94178

                Map output records=94178

                Map output bytes=941780

                Map output materialized bytes=265

                Input split bytes=151

                Combine input records=94178

                Combine output records=30

                Reduce input groups=30

                Reduce shuffle bytes=265

                Reduce input records=30

                Reduce output records=30

                Spilled Records=60

                Shuffled Maps =1

                Failed Shuffles=0

                Merged Map outputs=1

                GC time elapsed (ms)=475

                CPU time spent (ms)=2570

                Physical memory (bytes) snapshot=503918592

                Virtual memory (bytes) snapshot=5090603008

                Total committed heap usage (bytes)=365957120

                Peak Map Physical memory (bytes)=366530560

                Peak Map Virtual memory (bytes)=2539433984

                Peak Reduce Physical memory (bytes)=137388032

                Peak Reduce Virtual memory (bytes)=2551169024

        Shuffle Errors

                BAD_ID=0

                CONNECTION=0

                IO_ERROR=0

                WRONG_LENGTH=0

                WRONG_MAP=0

                WRONG_REDUCE=0

        File Input Format Counters

                Bytes Read=2071916

        File Output Format Counters

                Bytes Written=643

21/11/21 03:32:45 INFO RMProxy: Connecting to ResourceManager at server01.hadoop.com/192.168.56.101:8032

21/11/21 03:32:45 INFO JobResourceUploader: Disabling Erasure Coding for path: /user/root/.staging/job_1637424392789_0003

21/11/21 03:32:47 INFO FileInputFormat: Total input files to process : 1

21/11/21 03:32:48 INFO JobSubmitter: number of splits:1

21/11/21 03:32:49 INFO JobSubmitter: Submitting tokens for job: job_1637424392789_0003

21/11/21 03:32:49 INFO JobSubmitter: Executing with tokens: []

21/11/21 03:32:49 INFO YarnClientImpl: Submitted application application_1637424392789_0003

21/11/21 03:32:49 INFO Job: The url to track the job: http://server01.hadoop.com:8088/proxy/application_1637424392789_0003/

21/11/21 03:32:49 INFO Job: Running job: job_1637424392789_0003

21/11/21 03:33:27 INFO Job: Job job_1637424392789_0003 running in uber mode : false

21/11/21 03:33:27 INFO Job:  map 0% reduce 0%

21/11/21 03:33:51 INFO Job:  map 100% reduce 0%

21/11/21 03:34:08 INFO Job:  map 100% reduce 100%

21/11/21 03:34:08 INFO Job: Job job_1637424392789_0003 completed successfully

21/11/21 03:34:08 INFO Job: Counters: 55

        File System Counters

                FILE: Number of bytes read=402933

                FILE: Number of bytes written=1248777

                FILE: Number of read operations=0

                FILE: Number of large read operations=0

                FILE: Number of write operations=0

                HDFS: Number of bytes read=2072067

                HDFS: Number of bytes written=522978

                HDFS: Number of read operations=8

                HDFS: Number of large read operations=0

                HDFS: Number of write operations=2

                HDFS: Number of bytes read erasure-coded=0

        Job Counters

                Launched map tasks=1

                Launched reduce tasks=1

                Data-local map tasks=1

                Total time spent by all maps in occupied slots (ms)=21247

                Total time spent by all reduces in occupied slots (ms)=13637

                Total time spent by all map tasks (ms)=21247

                Total time spent by all reduce tasks (ms)=13637

                Total vcore-milliseconds taken by all map tasks=21247

                Total vcore-milliseconds taken by all reduce tasks=13637

                Total megabyte-milliseconds taken by all map tasks=21756928

                Total megabyte-milliseconds taken by all reduce tasks=13964288

        Map-Reduce Framework

                Map input records=94178

                Map output records=94178

                Map output bytes=1224314

                Map output materialized bytes=402929

                Input split bytes=151

                Combine input records=0

                Combine output records=0

                Reduce input groups=2449

                Reduce shuffle bytes=402929

                Reduce input records=94178

                Reduce output records=2449

                Spilled Records=188356

                Shuffled Maps =1

                Failed Shuffles=0

                Merged Map outputs=1

                GC time elapsed (ms)=298

                CPU time spent (ms)=2660

                Physical memory (bytes) snapshot=503132160

                Virtual memory (bytes) snapshot=5092700160

                Total committed heap usage (bytes)=365957120

                Peak Map Physical memory (bytes)=372359168

                Peak Map Virtual memory (bytes)=2539433984

                Peak Reduce Physical memory (bytes)=130772992

                Peak Reduce Virtual memory (bytes)=2553266176

        Shuffle Errors

                BAD_ID=0

                CONNECTION=0

                IO_ERROR=0

                WRONG_LENGTH=0

                WRONG_MAP=0

                WRONG_REDUCE=0

        File Input Format Counters

                Bytes Read=2071916

        File Output Format Counters

                Bytes Written=522978

        org.apache.mahout.cf.taste.hadoop.item.ToUserVectorsReducer$Counters

                USERS=2449

21/11/21 03:34:08 INFO RMProxy: Connecting to ResourceManager at server01.hadoop.com/192.168.56.101:8032

21/11/21 03:34:08 INFO JobResourceUploader: Disabling Erasure Coding for path: /user/root/.staging/job_1637424392789_0004

21/11/21 03:34:10 INFO FileInputFormat: Total input files to process : 1

21/11/21 03:34:10 INFO JobSubmitter: number of splits:1

21/11/21 03:34:10 INFO JobSubmitter: Submitting tokens for job: job_1637424392789_0004

21/11/21 03:34:10 INFO JobSubmitter: Executing with tokens: []

21/11/21 03:34:10 INFO YarnClientImpl: Submitted application application_1637424392789_0004

21/11/21 03:34:10 INFO Job: The url to track the job: http://server01.hadoop.com:8088/proxy/application_1637424392789_0004/

21/11/21 03:34:10 INFO Job: Running job: job_1637424392789_0004

21/11/21 03:34:24 INFO Job: Job job_1637424392789_0004 running in uber mode : false

21/11/21 03:34:24 INFO Job:  map 0% reduce 0%

21/11/21 03:34:33 INFO Job: Task Id : attempt_1637424392789_0004_m_000000_0, Status : FAILED

[2021-11-21 03:34:31.664]Container killed on request. Exit code is 137

[2021-11-21 03:34:31.666]Container exited with a non-zero exit code 137.

[2021-11-21 03:34:31.675]Killed by external signal

 

21/11/21 03:34:43 INFO Job:  map 100% reduce 0%

21/11/21 03:34:56 INFO Job:  map 100% reduce 100%

21/11/21 03:34:57 INFO Job: Job job_1637424392789_0004 completed successfully

21/11/21 03:34:57 INFO Job: Counters: 56

        File System Counters

                FILE: Number of bytes read=250272

                FILE: Number of bytes written=942767

                FILE: Number of read operations=0

                FILE: Number of large read operations=0

                FILE: Number of write operations=0

                HDFS: Number of bytes read=523138

                HDFS: Number of bytes written=424085

                HDFS: Number of read operations=9

                HDFS: Number of large read operations=0

                HDFS: Number of write operations=2

                HDFS: Number of bytes read erasure-coded=0

        Job Counters

                Failed map tasks=1

                Launched map tasks=2

                Launched reduce tasks=1

                Other local map tasks=1

                Data-local map tasks=1

                Total time spent by all maps in occupied slots (ms)=14569

                Total time spent by all reduces in occupied slots (ms)=9859

                Total time spent by all map tasks (ms)=14569

                Total time spent by all reduce tasks (ms)=9859

                Total vcore-milliseconds taken by all map tasks=14569

                Total vcore-milliseconds taken by all reduce tasks=9859

                Total megabyte-milliseconds taken by all map tasks=14918656

                Total megabyte-milliseconds taken by all reduce tasks=10095616

        Map-Reduce Framework

                Map input records=2449

                Map output records=52916

                Map output bytes=1005404

                Map output materialized bytes=250274

                Input split bytes=160

                Combine input records=52916

                Combine output records=30

                Reduce input groups=30

                Reduce shuffle bytes=250274

                Reduce input records=30

                Reduce output records=30

                Spilled Records=60

                Shuffled Maps =1

                Failed Shuffles=0

                Merged Map outputs=1

                GC time elapsed (ms)=227

                CPU time spent (ms)=2000

                Physical memory (bytes) snapshot=524152832

                Virtual memory (bytes) snapshot=5090603008

                Total committed heap usage (bytes)=365957120

                Peak Map Physical memory (bytes)=385503232

                Peak Map Virtual memory (bytes)=2539433984

                Peak Reduce Physical memory (bytes)=138649600

                Peak Reduce Virtual memory (bytes)=2551169024

        Shuffle Errors

                BAD_ID=0

                CONNECTION=0

                IO_ERROR=0

                WRONG_LENGTH=0

                WRONG_MAP=0

                WRONG_REDUCE=0

        File Input Format Counters

                Bytes Read=522978

        File Output Format Counters

                Bytes Written=424085

21/11/21 03:34:58 INFO AbstractJob: Command line arguments: {--endPhase=[2147483647], --excludeSelfSimilarity=[true], --input=[temp/preparePreferenceMatrix/ratingMatrix], --maxObservationsPerColumn=[500], --maxObservationsPerRow=[500], --maxSimilaritiesPerRow=[100], --numberOfColumns=[2449], --output=[temp/similarityMatrix], --randomSeed=[-9223372036854775808], --similarityClassname=[SIMILARITY_COCCURRENCE], --startPhase=[0], --tempDir=[temp], --threshold=[4.9E-324]}

21/11/21 03:34:58 INFO RMProxy: Connecting to ResourceManager at server01.hadoop.com/192.168.56.101:8032

21/11/21 03:34:58 INFO JobResourceUploader: Disabling Erasure Coding for path: /user/root/.staging/job_1637424392789_0005

21/11/21 03:35:00 INFO FileInputFormat: Total input files to process : 1

21/11/21 03:35:00 INFO JobSubmitter: number of splits:1

21/11/21 03:35:00 INFO JobSubmitter: Submitting tokens for job: job_1637424392789_0005

21/11/21 03:35:00 INFO JobSubmitter: Executing with tokens: []

21/11/21 03:35:00 INFO YarnClientImpl: Submitted application application_1637424392789_0005

21/11/21 03:35:00 INFO Job: The url to track the job: http://server01.hadoop.com:8088/proxy/application_1637424392789_0005/

21/11/21 03:35:00 INFO Job: Running job: job_1637424392789_0005

21/11/21 03:35:19 INFO Job: Job job_1637424392789_0005 running in uber mode : false

21/11/21 03:35:19 INFO Job:  map 0% reduce 0%

21/11/21 03:35:32 INFO Job:  map 100% reduce 0%

21/11/21 03:35:41 INFO Job:  map 100% reduce 100%

21/11/21 03:35:42 INFO Job: Job job_1637424392789_0005 completed successfully

21/11/21 03:35:42 INFO Job: Counters: 54

        File System Counters

                FILE: Number of bytes read=14503

                FILE: Number of bytes written=471767

                FILE: Number of read operations=0

                FILE: Number of large read operations=0

                FILE: Number of write operations=0

                HDFS: Number of bytes read=424246

                HDFS: Number of bytes written=29494

                HDFS: Number of read operations=9

                HDFS: Number of large read operations=0

                HDFS: Number of write operations=3

                HDFS: Number of bytes read erasure-coded=0

        Job Counters

                Launched map tasks=1

                Launched reduce tasks=1

                Data-local map tasks=1

                Total time spent by all maps in occupied slots (ms)=9709

                Total time spent by all reduces in occupied slots (ms)=6592

                Total time spent by all map tasks (ms)=9709

                Total time spent by all reduce tasks (ms)=6592

                Total vcore-milliseconds taken by all map tasks=9709

                Total vcore-milliseconds taken by all reduce tasks=6592

                Total megabyte-milliseconds taken by all map tasks=9942016

                Total megabyte-milliseconds taken by all reduce tasks=6750208

        Map-Reduce Framework

                Map input records=30

                Map output records=1

                Map output bytes=29396

                Map output materialized bytes=14499

                Input split bytes=161

                Combine input records=1

                Combine output records=1

                Reduce input groups=1

                Reduce shuffle bytes=14499

                Reduce input records=1

                Reduce output records=0

                Spilled Records=2

                Shuffled Maps =1

                Failed Shuffles=0

                Merged Map outputs=1

                GC time elapsed (ms)=276

                CPU time spent (ms)=1520

                Physical memory (bytes) snapshot=537358336

                Virtual memory (bytes) snapshot=5092700160

                Total committed heap usage (bytes)=365957120

                Peak Map Physical memory (bytes)=398348288

                Peak Map Virtual memory (bytes)=2539433984

                Peak Reduce Physical memory (bytes)=139010048

                Peak Reduce Virtual memory (bytes)=2553266176

        Shuffle Errors

                BAD_ID=0

                CONNECTION=0

                IO_ERROR=0

                WRONG_LENGTH=0

                WRONG_MAP=0

                WRONG_REDUCE=0

        File Input Format Counters

                Bytes Read=424085

        File Output Format Counters

                Bytes Written=98

21/11/21 03:35:42 INFO RMProxy: Connecting to ResourceManager at server01.hadoop.com/192.168.56.101:8032

21/11/21 03:35:42 INFO JobResourceUploader: Disabling Erasure Coding for path: /user/root/.staging/job_1637424392789_0006

21/11/21 03:35:43 INFO FileInputFormat: Total input files to process : 1

21/11/21 03:35:43 INFO JobSubmitter: number of splits:1

21/11/21 03:35:43 INFO JobSubmitter: Submitting tokens for job: job_1637424392789_0006

21/11/21 03:35:43 INFO JobSubmitter: Executing with tokens: []

21/11/21 03:35:43 INFO YarnClientImpl: Submitted application application_1637424392789_0006

21/11/21 03:35:43 INFO Job: The url to track the job: http://server01.hadoop.com:8088/proxy/application_1637424392789_0006/

21/11/21 03:35:43 INFO Job: Running job: job_1637424392789_0006

21/11/21 03:35:56 INFO Job: Job job_1637424392789_0006 running in uber mode : false

21/11/21 03:35:56 INFO Job:  map 0% reduce 0%

21/11/21 03:36:10 INFO Job: Task Id : attempt_1637424392789_0006_m_000000_0, Status : FAILED

Error: java.lang.IllegalStateException: java.lang.ClassNotFoundException: SIMILARITY_COCCURRENCE

        at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:30)

        at org.apache.mahout.math.hadoop.similarity.cooccurrence.RowSimilarityJob$VectorNormMapper.setup(RowSimilarityJob.java:270)

        at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)

        at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799)

        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347)

        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.Subject.doAs(Subject.java:422)

        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)

        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)

Caused by: java.lang.ClassNotFoundException: SIMILARITY_COCCURRENCE

        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:264)

        at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:28)

        ... 9 more

 

21/11/21 03:36:17 INFO Job: Task Id : attempt_1637424392789_0006_m_000000_1, Status : FAILED

Error: java.lang.IllegalStateException: java.lang.ClassNotFoundException: SIMILARITY_COCCURRENCE

        at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:30)

        at org.apache.mahout.math.hadoop.similarity.cooccurrence.RowSimilarityJob$VectorNormMapper.setup(RowSimilarityJob.java:270)

        at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)

        at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799)

        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347)

        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.Subject.doAs(Subject.java:422)

        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)

        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)

Caused by: java.lang.ClassNotFoundException: SIMILARITY_COCCURRENCE

        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:264)

        at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:28)

        ... 9 more

 

21/11/21 03:36:24 INFO Job: Task Id : attempt_1637424392789_0006_m_000000_2, Status : FAILED

Error: java.lang.IllegalStateException: java.lang.ClassNotFoundException: SIMILARITY_COCCURRENCE

        at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:30)

        at org.apache.mahout.math.hadoop.similarity.cooccurrence.RowSimilarityJob$VectorNormMapper.setup(RowSimilarityJob.java:270)

        at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)

        at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799)

        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347)

        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.Subject.doAs(Subject.java:422)

        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)

        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)

Caused by: java.lang.ClassNotFoundException: SIMILARITY_COCCURRENCE

        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:264)

        at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:28)

        ... 9 more

 

21/11/21 03:36:31 INFO Job:  map 100% reduce 100%

21/11/21 03:36:32 INFO Job: Job job_1637424392789_0006 failed with state FAILED due to: Task failed task_1637424392789_0006_m_000000

Job failed as tasks failed. failedMaps:1 failedReduces:0 killedMaps:0 killedReduces: 0

 

21/11/21 03:36:33 INFO Job: Counters: 10

        Job Counters

                Failed map tasks=4

                Killed reduce tasks=1

                Launched map tasks=4

                Other local map tasks=3

                Data-local map tasks=1

                Total time spent by all maps in occupied slots (ms)=27630

                Total time spent by all reduces in occupied slots (ms)=0

                Total time spent by all map tasks (ms)=27630

                Total vcore-milliseconds taken by all map tasks=27630

                Total megabyte-milliseconds taken by all map tasks=28293120

21/11/21 03:36:33 INFO RMProxy: Connecting to ResourceManager at server01.hadoop.com/192.168.56.101:8032

21/11/21 03:36:33 INFO JobResourceUploader: Disabling Erasure Coding for path: /user/root/.staging/job_1637424392789_0007

21/11/21 03:36:34 INFO FileInputFormat: Total input files to process : 1

21/11/21 03:36:34 INFO JobSubmitter: Cleaning up the staging area /user/root/.staging/job_1637424392789_0007

Exception in thread "main" org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: hdfs://server01.hadoop.com:8020/user/root/temp/similarityMatrix

        at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.singleThreadedListStatus(FileInputFormat.java:330)

        at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:272)

        at org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat.listStatus(SequenceFileInputFormat.java:59)

        at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:394)

        at org.apache.hadoop.mapreduce.lib.input.DelegatingInputFormat.getSplits(DelegatingInputFormat.java:115)

        at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:310)

        at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:327)

        at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:200)

        at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1570)

        at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1567)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.Subject.doAs(Subject.java:422)

        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875)

        at org.apache.hadoop.mapreduce.Job.submit(Job.java:1567)

        at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1588)

        at org.apache.mahout.cf.taste.hadoop.item.RecommenderJob.run(RecommenderJob.java:249)

        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)

        at org.apache.mahout.cf.taste.hadoop.item.RecommenderJob.main(RecommenderJob.java:335)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)

        at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)

        at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:152)

        at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at org.apache.hadoop.util.RunJar.run(RunJar.java:313)

        at org.apache.hadoop.util.RunJar.main(RunJar.java:227)

[root@server02 pilot-pjt]#

 

답변 2

0

ChangWon Jeong님의 프로필 이미지

2021. 11. 21. 12:34

실행완료 하였습니다. 알파벳하나때문에 시간을 얼마나 헤머었는지.... 저게 눈에 안들어왔네요

조금 더 꼼꼼하게 실행해보겠습니다. 감사합니다. 

0

Big.D님의 프로필 이미지
Big.D
지식공유자

2021. 11. 21. 10:05

안녕하세요! 빅디 입니다.

파일럿 프로젝트 마무리가 얼마 남지 않은것 같습니다. 조금만더 화이팅 해주세요!

실행하신 문제의 원인은 머하웃 명령중 유사도 옵션에서 오타가 있어 보입니다.

 

[root@server02 pilot-pjt]# mahout recommenditembased -i /pilot-pjt/mahout/recommendation/input/item_buylist.txt -o /pilot-pjt/mahout/recommendation/output/ -s SIMILARITY_COCCURRENCE -n 3

 

 해당 부분의 정확한 명령을 SIMILARITY_COOCCURRENCE 로 입력후 실행해 주세요~

- 빅디 드림