Hadoop Streaming failed with large number of input files
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Key: HADOOP-4362
URL: https://issues.apache.org/jira/browse/HADOOP-4362
Project: Hadoop Core
Issue Type: Bug
Components: contrib/streaming
Affects Versions: 0.18.1
Reporter: Peeyush Bishnoi
Priority: Critical
Fix For: 0.18.2
Simple job failed with "java.lang.ArrayIndexOutOfBoundsException" when the
mapper is /bin/cat and the number of input files is large.
$ hadoop jar $HADOOP_HOME/hadoop-streaming.jar -input in_data -output op_data
-mapper /bin/cat -reducer NONE
additionalConfSpec_:null
null=@@@userJobConfProps_.get(stream.shipped.hadoopstreaming
packageJobJar: [/tmp/hadoop-unjar49637/] []
/tmp/streamjob49638.jar tmpDir=/tmp
08/10/07 07:03:09 WARN mapred.JobClient: Use GenericOptionsParser for parsing
the arguments. Applications should
implement Tool for the same.
08/10/07 07:03:11 INFO mapred.FileInputFormat: Total input paths to process :
16365
08/10/07 07:03:12 INFO mapred.FileInputFormat: Total input paths to process :
16365
08/10/07 07:03:15 ERROR streaming.StreamJob: Error Launching job :
java.io.IOException:
java.lang.ArrayIndexOutOfBoundsException
Streaming Job Failed!
But when the input number of files are less job does not fail .
$ hadoop jar $HADOOP_HOME/hadoop-streaming.jar -input inp_data1 -output
op_data1 -mapper /bin/cat -reducer NONE
additionalConfSpec_:null
null=@@@userJobConfProps_.get(stream.shipped.hadoopstreaming
packageJobJar: [/tmp/hadoop-unjar3725/] []
/tmp/streamjob3726.jar tmpDir=/tmp
08/10/07 07:06:37 WARN mapred.JobClient: Use GenericOptionsParser for parsing
the arguments. Applications should
implement Tool for the same.
08/10/07 07:06:39 INFO mapred.FileInputFormat: Total input paths to process : 16
08/10/07 07:06:39 INFO mapred.FileInputFormat: Total input paths to process : 16
08/10/07 07:06:42 INFO streaming.StreamJob: getLocalDirs():
[/var/mapred/local]
08/10/07 07:06:42 INFO streaming.StreamJob: Running job: job_200810070645_0006
08/10/07 07:06:42 INFO streaming.StreamJob: To kill this job, run:
08/10/07 07:06:42 INFO streaming.StreamJob: hadoop job
-Dmapred.job.tracker=login1:51981 -kill job_200810070645_0006
08/10/07 07:06:42 INFO streaming.StreamJob: Tracking URL:
http://login1:52941/jobdetails.jsp?jobid=job_200810070645_0006
08/10/07 07:06:43 INFO streaming.StreamJob: map 0% reduce 0%
08/10/07 07:06:46 INFO streaming.StreamJob: map 44% reduce 0%
08/10/07 07:06:47 INFO streaming.StreamJob: map 75% reduce 0%
08/10/07 07:06:48 INFO streaming.StreamJob: map 88% reduce 0%
08/10/07 07:06:49 INFO streaming.StreamJob: map 100% reduce 100%
08/10/07 07:06:49 INFO streaming.StreamJob: Job complete: job_200810070645_0006
08/10/07 07:06:49 INFO streaming.StreamJob: Output: op_data2
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