Reducer gets stuck in shuffle when local disk out of space
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Key: HADOOP-4115
URL: https://issues.apache.org/jira/browse/HADOOP-4115
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.17.2
Reporter: Marco Nicosia
2008-08-29 23:53:12,357 WARN org.apache.hadoop.mapred.ReduceTask:
task_200808291851_0001_r_000245_0 Merging of the local FS files threw an
exception: org.apache.hadoop.fs.FSError: java.io.IOException: No space left on
device
at
org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.write(RawLocalFileSystem.java:199)
at
java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.write(BufferedOutputStream.java:109)
at
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:47)
at java.io.DataOutputStream.write(DataOutputStream.java:90)
at
org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer.writeChunk(ChecksumFileSystem.java:339)
at
org.apache.hadoop.fs.FSOutputSummer.writeChecksumChunk(FSOutputSummer.java:155)
at
org.apache.hadoop.fs.FSOutputSummer.flushBuffer(FSOutputSummer.java:132)
at
org.apache.hadoop.fs.FSOutputSummer.flushBuffer(FSOutputSummer.java:121)
at org.apache.hadoop.fs.FSOutputSummer.write1(FSOutputSummer.java:112)
at org.apache.hadoop.fs.FSOutputSummer.write(FSOutputSummer.java:86)
at
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:47)
at java.io.DataOutputStream.write(DataOutputStream.java:90)
at
org.apache.hadoop.io.SequenceFile$UncompressedBytes.writeUncompressedBytes(SequenceFile.java:617)
at
org.apache.hadoop.io.SequenceFile$Writer.appendRaw(SequenceFile.java:1038)
at
org.apache.hadoop.io.SequenceFile$Sorter.writeFile(SequenceFile.java:2626)
at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$LocalFSMerger.run(ReduceTask.java:1564)
Caused by: java.io.IOException: No space left on device
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(FileOutputStream.java:260)
at
org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.write(RawLocalFileSystem.java:197)
... 16 more
2008-08-29 23:53:14,013 WARN org.apache.hadoop.mapred.TaskTracker: Error
running child
java.io.IOException: task_200808291851_0001_r_000245_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)
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