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 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) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.