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From "Marco Nicosia (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4115) Reducer gets stuck in shuffle when local disk out of space
Date Mon, 08 Sep 2008 16:13:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marco Nicosia updated HADOOP-4115:
----------------------------------

    Priority: Critical  (was: Major)

> Reducer gets stuck in shuffle when local disk out of space
> ----------------------------------------------------------
>
>                 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
>            Priority: Critical
>
> 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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