If a reducer failed at shuffling stage, the task should fail, not just logging
an exception
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Key: HADOOP-4163
URL: https://issues.apache.org/jira/browse/HADOOP-4163
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.17.1
Reporter: Runping Qi
I saw a reducer stuck at the shuffling stage, with the following exception
logged in the log file:
2008-08-30 00:16:23,265 ERROR org.apache.hadoop.mapred.ReduceTask: Map output
copy failure: org.apache.hadoop.fs.FSError: java.io.IOException: No space left
on device
at
org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.write(RawLocalFileSystem.java:199)
at
java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at java.io.FilterOutputStream.close(FilterOutputStream.java:140)
at
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:59)
at
org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:79)
at
org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer.close(ChecksumFileSystem.java:332)
at
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:59)
at
org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:79)
at
org.apache.hadoop.mapred.MapOutputLocation.getFile(MapOutputLocation.java:185)
at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(ReduceTask.java:815)
at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceTask.java:764)
Caused by: java.io.IOException: No space left on device
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(FileOutputStream.java:260)
at
org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.write(RawLocalFileSystem.java:197)
... 11 more
2008-08-30 00:16:23,320 WARN org.apache.hadoop.mapred.TaskTracker: Error
running child
java.io.IOException: task_200808291851_0001_r_000023_0The reduce copier failed
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:329)
at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2122)
The task should have died.
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