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https://issues.apache.org/jira/browse/MAPREDUCE-115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12914379#action_12914379
]
Torsten Curdt commented on MAPREDUCE-115:
-----------------------------------------
We were able reproduce it with every job run. Now we switched from lzo to gz
compression for the input and turned off intermediate compression and that
worked.
So I am not sure this was (also - like another issue) related the lzo
compression or because of a bug in the intermediate compression.
> Map tasks are receiving FileNotFound Exceptions for spill files on a regular
> basis and are getting killed
> ---------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-115
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-115
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.20.2
> Reporter: Jothi Padmanabhan
>
> The following is the log -- Map tasks are unable to locate the spill files
> when they are doing the final merge (mergeParts).
> java.io.FileNotFoundException: File
> /xxx/mapred-tt/mapred-local/taskTracker/jobcache/job_200808190959_0001/attempt_200808190959_0001_m_000000_0/output/spill23.out
> does not exist.
> at
> org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:420)
> at
> org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:244)
> at
> org.apache.hadoop.fs.FileSystem.getContentSummary(FileSystem.java:682)
> at
> org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.getFileLength(ChecksumFileSystem.java:218)
> at
> org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.seek(ChecksumFileSystem.java:259)
> at
> org.apache.hadoop.fs.FSDataInputStream.seek(FSDataInputStream.java:37)
> at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:1102)
> at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:769)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:255)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2208)
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