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https://issues.apache.org/jira/browse/MAPREDUCE-115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868472#action_12868472
]
geoff hendrey commented on MAPREDUCE-115:
-----------------------------------------
Most of my mappers are dying with this error. I am using Hadoop 20.2. Any
suggestions for a work around?
010-05-17 14:03:42,738 INFO org.apache.hadoop.mapred.Merger: Merging 22 sorted
segments
2010-05-17 14:03:43,099 WARN org.apache.hadoop.mapred.TaskTracker: Error
running child
java.io.FileNotFoundException:
/hive4/mapred/local/taskTracker/jobcache/job_201005141621_0137/attempt_201005141621_0137_m_000000_0/output/spill15.out
at
org.apache.hadoop.fs.RawLocalFileSystem.open(RawLocalFileSystem.java:167)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:356)
at org.apache.hadoop.mapred.Merger$Segment.init(Merger.java:205)
at org.apache.hadoop.mapred.Merger$Segment.access$100(Merger.java:165)
at org.apache.hadoop.mapred.Merger$MergeQueue.merge(Merger.java:418)
at org.apache.hadoop.mapred.Merger$MergeQueue.merge(Merger.java:381)
at org.apache.hadoop.mapred.Merger.merge(Merger.java:77)
at
org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:1522)
at
org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1154)
at
org.apache.hadoop.mapred.MapTask$NewOutputCollector.close(MapTask.java:549)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:623)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
> 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
> 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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