ERROR 2997: Unable to recreate exception from backed error. Here i have parsed apache log file but when i am trying to export it into csv format this error occurs. Code and error :
grunt> STORE logs INTO '/home/cloudera/workspace/Test_log.csv' USING org.apache.pig.piggybank.storage.CSVExcelStorage(',', 'NO_MULTILINE','NOCHANGE');
2015-12-24 10:50:44,821 [main] INFO org.apache.pig.tools.pigstats.ScriptState - Pig features used in the script: UNKNOWN
2015-12-24 10:50:44,830 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler - File concatenation threshold: 100 optimistic? false
2015-12-24 10:50:44,937 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler - mapred.job.reduce.markreset.buffer.percent is not set, set to default 0.3
2015-12-24 10:50:49,055 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler - Setting up single store job
2015-12-24 10:50:49,056 [main] INFO org.apache.pig.data.SchemaTupleFrontend - Key [pig.schematuple] is false, will not generate code.
2015-12-24 10:50:49,056 [main] INFO org.apache.pig.data.SchemaTupleFrontend - Starting process to move generated code to distributed cache
2015-12-24 10:50:49,056 [main] INFO org.apache.pig.data.SchemaTupleFrontend - Setting key [pig.schematuple.classes] with classes to deserialize []
2015-12-24 10:50:49,158 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 1 map-reduce job(s) waiting for submission.
2015-12-24 10:50:49,158 [main] INFO org.apache.hadoop.conf.Configuration.deprecation - mapred.job.tracker is deprecated. Instead, use mapreduce.jobtracker.address
2015-12-24 10:50:49,159 [JobControl] INFO org.apache.hadoop.yarn.client.RMProxy - Connecting to ResourceManager at /0.0.0.0:8032
2015-12-24 10:50:49,177 [JobControl] INFO org.apache.hadoop.conf.Configuration.deprecation - fs.default.name is deprecated. Instead, use fs.defaultFS
2015-12-24 10:50:49,428 [JobControl] INFO org.apache.hadoop.mapreduce.lib.input.FileInputFormat - Total input paths to process : 1
2015-12-24 10:50:49,431 [JobControl] INFO org.apache.pig.backend.hadoop.executionengine.util.MapRedUtil - Total input paths (combined) to process : 2
2015-12-24 10:50:49,467 [JobControl] INFO org.apache.hadoop.mapreduce.JobSubmitter - number of splits:2
2015-12-24 10:50:49,518 [JobControl] INFO org.apache.hadoop.mapreduce.JobSubmitter - Submitting tokens for job: job_1450979216927_0004
2015-12-24 10:50:49,578 [JobControl] INFO org.apache.hadoop.yarn.client.api.impl.YarnClientImpl - Submitted application application_1450979216927_0004
2015-12-24 10:50:49,581 [JobControl] INFO org.apache.hadoop.mapreduce.Job - The url to track the job: http://quickstart.cloudera:8088/proxy/application_1450979216927_0004/
2015-12-24 10:50:49,659 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - HadoopJobId: job_1450979216927_0004
2015-12-24 10:50:49,659 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Processing aliases logs
2015-12-24 10:50:49,659 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - detailed locations: M: logs[7,7],null[-1,-1] C: R:
2015-12-24 10:50:49,659 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - More information at: http://localhost:50030/jobdetails.jsp?jobid=job_1450979216927_0004
2015-12-24 10:50:49,702 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 0% complete
2015-12-24 10:51:17,030 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 50% complete
2015-12-24 10:52:04,848 [main] WARN org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Ooops! Some job has failed! Specify -stop_on_failure if you want Pig to stop immediately on failure.
2015-12-24 10:52:04,848 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - job job_1450979216927_0004 has failed! Stop running all dependent jobs
2015-12-24 10:52:04,848 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 100% complete
2015-12-24 10:52:05,039 [main] ERROR org.apache.pig.tools.pigstats.SimplePigStats - ERROR 2997: Unable to recreate exception from backed error: AttemptID:attempt_1450979216927_0004_m_000001_3 Info:Error: org.apache.pig.data.Tuple.isNull()Z
2015-12-24 10:52:05,040 [main] ERROR org.apache.pig.tools.pigstats.PigStatsUtil - 1 map reduce job(s) failed! 2015-12-24 10:52:05,040[main]INFOorg.apache.pig.tools.pigstats.SimplePigStats - Script Statistics:
HadoopVersion PigVersion UserId StartedAt FinishedAt Features 2.6.0-cdh5.4.0 0.12.0-cdh5.4.0 cloudera 2015-12-24 10:50:44 2015-12-24 10:52:05 UNKNOWN
Failed!
Failed Jobs: JobId Alias Feature Message Outputs job_1450979216927_0004 logs MAP_ONLY Message: Job failed! /home/cloudera/workspace/Test_log.csv,
Input(s): Failed to read data from "/myhdfs/project/TestLog.txt"
Output(s): Failed to produce result in "/home/cloudera/workspace/Test_log.csv"
Counters: Total records written : 0 Total bytes written : 0 Spillable Memory Manager spill count : 0 Total bags proactively spilled: 0 Total records proactively spilled: 0
Job DAG: job_1450979216927_0004
2015-12-24 10:52:05,040 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed!
