problem using top level s3 buckets as input/output directories
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Key: HADOOP-5805
URL: https://issues.apache.org/jira/browse/HADOOP-5805
Project: Hadoop Core
Issue Type: Bug
Components: fs/s3
Affects Versions: 0.18.3
Environment: ec2, cloudera AMI, 20 nodes
Reporter: Arun Jacob
When I specify top level s3 buckets as input or output directories, I get the
following exception.
hadoop jar subject-map-reduce.jar s3n://infocloud-input s3n://infocloud-output
java.lang.IllegalArgumentException: Path must be absolute:
s3n://infocloud-output
at
org.apache.hadoop.fs.s3native.NativeS3FileSystem.pathToKey(NativeS3FileSystem.java:246)
at
org.apache.hadoop.fs.s3native.NativeS3FileSystem.getFileStatus(NativeS3FileSystem.java:319)
at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:667)
at
org.apache.hadoop.mapred.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:109)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:738)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1026)
at
com.evri.infocloud.prototype.subjectmapreduce.SubjectMRDriver.run(SubjectMRDriver.java:63)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at
com.evri.infocloud.prototype.subjectmapreduce.SubjectMRDriver.main(SubjectMRDriver.java:25)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68)
The workaround is to specify input/output buckets with sub-directories:
hadoop jar subject-map-reduce.jar s3n://infocloud-input/input-subdir
s3n://infocloud-output/output-subdir
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