MapReduce作业失败，写入数据失败

Question

我正在尝试将数据从 teradata 导出到 hadoop。 但是我的导出查询因给出错误"无法写入数据"而失败。请查看下面的Mapreduce和应用程序日志：

Log Type: syslog
Log Upload Time: Tue Mar 08 22:59:27 -0800 2016
Log Length: 4931
2016-03-08 22:47:07,414 WARN [main] org.apache.hadoop.metrics2.impl.MetricsConfig: Cannot locate configuration: tried hadoop-metrics2-maptask.properties,hadoop-metrics2.properties
2016-03-08 22:47:07,499 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2016-03-08 22:47:07,499 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started
2016-03-08 22:47:07,509 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens:
2016-03-08 22:47:07,510 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: mapreduce.job, Service: job_1457504560070_0004, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@175b9425)
2016-03-08 22:47:07,556 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: RM_DELEGATION_TOKEN, Service: 39.7.48.2:8032,39.7.48.3:8032, Ident: (owner=hive, renewer=oozie mr token, realUser=oozie, issueDate=1457506410968, maxDate=1458111210968, sequenceNumber=908, masterKeyId=280)
2016-03-08 22:47:07,599 INFO [main] org.apache.hadoop.mapred.YarnChild: Sleeping for 0ms before retrying again. Got null now.
2016-03-08 22:47:07,848 INFO [main] org.apache.hadoop.mapred.YarnChild: mapreduce.cluster.local.dir for child: /data1/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data2/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data3/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data4/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data5/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data6/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data7/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data8/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data9/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data10/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004,/data12/hadoop/yarn/local/usercache/hive/appcache/application_1457504560070_0004
2016-03-08 22:47:08,132 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
2016-03-08 22:47:08,623 INFO [main] org.apache.hadoop.mapred.Task:  Using ResourceCalculatorProcessTree : [ ]
2016-03-08 22:47:08,840 INFO [main] org.apache.hadoop.mapred.MapTask: Processing split: com.teradata.dynaload.hcatalog.mapper.TDInputFormat$TeradataInputSplit@2ece4966
2016-03-08 22:47:08,844 INFO [main] com.teradata.dynaload.hcatalog.mapper.TDInputFormat$TeradataRecordReader: recordreader class com.teradata.dynaload.hcatalog.mapper.TDInputFormat$TeradataRecordReaderinitialize time is:  1457506028844
2016-03-08 22:47:09,512 INFO [main] org.apache.hadoop.mapred.MapTask: (EQUATOR) 0 kvi 300417020(1201668080)
2016-03-08 22:47:09,512 INFO [main] org.apache.hadoop.mapred.MapTask: mapreduce.task.io.sort.mb: 1146
2016-03-08 22:47:09,512 INFO [main] org.apache.hadoop.mapred.MapTask: soft limit at 841167680
2016-03-08 22:47:09,512 INFO [main] org.apache.hadoop.mapred.MapTask: bufstart = 0; bufvoid = 1201668096
2016-03-08 22:47:09,512 INFO [main] org.apache.hadoop.mapred.MapTask: kvstart = 300417020; length = 75104256
2016-03-08 22:47:09,515 INFO [main] org.apache.hadoop.mapred.MapTask: Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer
2016-03-08 22:47:09,518 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: mapred.task.partition is deprecated. Instead, use mapreduce.task.partition
2016-03-08 22:47:09,518 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: mapred.task.id is deprecated. Instead, use mapreduce.task.attempt.id
2016-03-08 22:47:09,848 WARN [main] org.apache.hadoop.hive.conf.HiveConf: HiveConf of name hive.metastore.local does not exist
2016-03-08 22:47:09,914 INFO [main] hive.metastore: Trying to connect to metastore with URI thrift://apus2.labs.teradata.com:9083
2016-03-08 22:47:09,951 INFO [main] hive.metastore: Connected to metastore.
2016-03-08 22:47:10,407 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: mapred.output.dir is deprecated. Instead, use mapreduce.output.fileoutputformat.outputdir
2016-03-08 22:47:10,452 INFO [main] org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter: File Output Committer Algorithm version is 1
2016-03-08 22:47:10,453 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: mapred.work.output.dir is deprecated. Instead, use mapreduce.task.output.dir
2016-03-08 22:47:10,453 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: mapred.output.key.class is deprecated. Instead, use mapreduce.job.output.key.class
2016-03-08 22:47:10,457 INFO [main] org.apache.hadoop.conf.Configuration.deprecation: mapred.output.value.class is deprecated. Instead, use mapreduce.job.output.value.class
APPLICATION Master LOGS:
Log Type: stderr
Log Upload Time: Tue Mar 08 22:59:27 -0800 2016
Log Length: 240
log4j:WARN No appenders could be found for logger (org.apache.hadoop.mapreduce.v2.app.MRAppMaster).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Log Type: stdout
Log Upload Time: Tue Mar 08 22:59:27 -0800 2016
Log Length: 0
Log Type: syslog
Log Upload Time: Tue Mar 08 22:59:27 -0800 2016
Log Length: 66959
Showing 4096 bytes of 66959 total. Click here for the full log.
ILED
2016-03-08 22:59:19,325 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: In stop, writing event JOB_FAILED
2016-03-08 22:59:19,456 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Copying hdfs://C423A:8020/user/hive/.staging/job_1457504560070_0004/job_1457504560070_0004_1.jhist to hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004-1457506422934-hive-oozie%3Aaction%3AT%3Djava%3AW%3DTDExportMR%3AA%3Dexport%3AID%3D00001-1457506759193-0-0-FAILED-default-1457506429243.jhist_tmp
2016-03-08 22:59:19,550 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Copied to done location: hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004-1457506422934-hive-oozie%3Aaction%3AT%3Djava%3AW%3DTDExportMR%3AA%3Dexport%3AID%3D00001-1457506759193-0-0-FAILED-default-1457506429243.jhist_tmp
2016-03-08 22:59:19,562 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Copying hdfs://C423A:8020/user/hive/.staging/job_1457504560070_0004/job_1457504560070_0004_1_conf.xml to hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004_conf.xml_tmp
2016-03-08 22:59:19,614 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Copied to done location: hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004_conf.xml_tmp
2016-03-08 22:59:19,645 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Moved tmp to done: hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004.summary_tmp to hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004.summary
2016-03-08 22:59:19,654 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Moved tmp to done: hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004_conf.xml_tmp to hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004_conf.xml
2016-03-08 22:59:19,666 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Moved tmp to done: hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004-1457506422934-hive-oozie%3Aaction%3AT%3Djava%3AW%3DTDExportMR%3AA%3Dexport%3AID%3D00001-1457506759193-0-0-FAILED-default-1457506429243.jhist_tmp to hdfs://C423A:8020/mr-history/tmp/hive/job_1457504560070_0004-1457506422934-hive-oozie%3Aaction%3AT%3Djava%3AW%3DTDExportMR%3AA%3Dexport%3AID%3D00001-1457506759193-0-0-FAILED-default-1457506429243.jhist
2016-03-08 22:59:19,666 INFO [Thread-89] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Stopped JobHistoryEventHandler. super.stop()
2016-03-08 22:59:19,671 INFO [Thread-89] org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator: Setting job diagnostics to Task failed task_1457504560070_0004_m_000004
Job failed as tasks failed. failedMaps:1 failedReduces:0
2016-03-08 22:59:19,672 INFO [Thread-89] org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator: History url is http://apus2.labs.teradata.com:19888/jobhistory/job/job_1457504560070_0004
2016-03-08 22:59:19,680 INFO [Thread-89] org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator: Waiting for application to be successfully unregistered.
2016-03-08 22:59:20,682 INFO [Thread-89] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Final Stats: PendingReds:1 ScheduledMaps:0 ScheduledReds:0 AssignedMaps:7 AssignedReds:0 CompletedMaps:0 CompletedReds:0 ContAlloc:7 ContRel:0 HostLocal:6 RackLocal:1
2016-03-08 22:59:20,684 INFO [Thread-89] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Deleting staging directory hdfs://C423A /user/hive/.staging/job_1457504560070_0004
2016-03-08 22:59:20,711 INFO [Thread-89] org.apache.hadoop.ipc.Server: Stopping server on 46067
2016-03-08 22:59:20,712 INFO [IPC Server listener on 46067] org.apache.hadoop.ipc.Server: Stopping IPC Server listener on 46067
2016-03-08 22:59:20,712 INFO [IPC Server Responder] org.apache.hadoop.ipc.Server: Stopping IPC Server Responder
2016-03-08 22:59:20,714 INFO [TaskHeartbeatHandler PingChecker] org.apache.hadoop.mapreduce.v2.app.TaskHeartbeatHandler: TaskHeartbeatHandler thread interrupted.

请帮助我解决问题。

Answer 1

你必须使用 sqoop 将数据带到 hadoop。请粘贴您正在运行的命令。对于"写入数据失败"，可能存在多个问题。目标父目录不可用，群集等没有空间。只有命令才能给出解释。