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From "Brady Chang" <bch...@atipa.com>
Subject ioexception during reduce.
Date Thu, 23 Apr 2009 23:45:39 GMT
Hello all,

One of my customer's getting the following when increase input size.

same process runs fine with smaller input size.

/tmp has plenty of space,

each data node has 64 Gig memory.

hadoop 0-19.1

Please let me know if you need any additional info.

 

[root@head attempt_200904181818_0020_r_000002_1]# cat syslog 

2009-04-20 00:52:52,898 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
Initializing JVM Metrics with processName=SHUFFLE, sessionId=

2009-04-20 00:52:53,005 INFO org.apache.hadoop.mapred.ReduceTask:
ShuffleRamManager: MemoryLimit=130514944, MaxSingleShuffleLimit=32628736

2009-04-20 00:52:53,013 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Thread started: Thread for merging
on-disk files

2009-04-20 00:52:53,013 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Thread started: Thread for merging in
memory files

2009-04-20 00:52:53,013 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Thread waiting: Thread for merging
on-disk files

2009-04-20 00:52:53,015 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Need another 168 map output(s) where 0
is already in progress

2009-04-20 00:52:53,042 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1: Got 168 new map-outputs

2009-04-20 00:52:53,042 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Scheduled 8 outputs (0 slow hosts and0
dup hosts)

2009-04-20 00:52:53,068 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000002_0

2009-04-20 00:52:53,069 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000006_0

2009-04-20 00:52:53,069 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000003_0

2009-04-20 00:52:53,069 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000016_0

2009-04-20 00:52:53,069 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000012_0

2009-04-20 00:52:53,073 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000016_0

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000006_0

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000012_0

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000003_0

2009-04-20 00:52:53,073 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000002_0

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000012_0 -> (-1, -1) from n2

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000016_0 -> (-1, -1) from n8

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000006_0 -> (-1, -1) from n4

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000002_0 -> (-1, -1) from n5

2009-04-20 00:52:53,074 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000003_0 -> (-1, -1) from n7

2009-04-20 00:52:53,078 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000007_0

2009-04-20 00:52:53,078 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000007_0

2009-04-20 00:52:53,078 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000007_0 -> (-1, -1) from n3

2009-04-20 00:52:53,078 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000037_0

2009-04-20 00:52:53,078 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000037_0

2009-04-20 00:52:53,079 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000037_0 -> (-1, -1) from n1

2009-04-20 00:52:53,079 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000033_0

2009-04-20 00:52:53,079 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000033_0

2009-04-20 00:52:53,079 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000033_0 -> (-1, -1) from n6

2009-04-20 00:52:55,021 INFO org.apache.hadoop.mapred.ReduceTask: Ignoring
obsolete output of KILLED map-task: 'attempt_200904181818_0020_m_000166_1'

2009-04-20 00:52:55,021 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1: Got 1 obsolete map-outputs from
tasktracker 

2009-04-20 00:52:55,022 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Scheduled 8 outputs (0 slow hosts and0
dup hosts)

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000005_0

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000005_0

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000005_0 -> (-1, -1) from n1

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000014_0

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000004_0

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000014_0

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000004_0

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000014_0 -> (-1, -1) from n4

2009-04-20 00:52:55,024 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000004_0 -> (-1, -1) from n2

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000019_0

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000018_0

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000019_0

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000018_0

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000019_0 -> (-1, -1) from n7

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000018_0 -> (-1, -1) from n5

2009-04-20 00:52:55,025 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000008_0

2009-04-20 00:52:55,026 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000008_0

2009-04-20 00:52:55,026 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000008_0 -> (-1, -1) from n8

2009-04-20 00:52:55,026 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000015_0

2009-04-20 00:52:55,026 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000015_0

2009-04-20 00:52:55,026 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000015_0 -> (-1, -1) from n3

2009-04-20 00:52:55,026 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000001_0

2009-04-20 00:52:55,027 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000001_0

2009-04-20 00:52:55,027 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000001_0 -> (-1, -1) from n6

2009-04-20 00:52:57,026 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Scheduled 8 outputs (0 slow hosts and0
dup hosts)

2009-04-20 00:52:57,028 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000029_0

2009-04-20 00:52:57,028 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000029_0

2009-04-20 00:52:57,028 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000029_0 -> (-1, -1) from n1

2009-04-20 00:52:57,028 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000011_0

2009-04-20 00:52:57,028 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000020_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000026_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000011_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000020_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000011_0 -> (-1, -1) from n7

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000020_0 -> (-1, -1) from n2

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000026_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000047_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000026_0 -> (-1, -1) from n5

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000047_0

2009-04-20 00:52:57,029 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000047_0 -> (-1, -1) from n3

2009-04-20 00:52:57,030 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000022_0

2009-04-20 00:52:57,030 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000022_0

2009-04-20 00:52:57,030 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000022_0 -> (-1, -1) from n4

2009-04-20 00:52:57,031 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000049_0

2009-04-20 00:52:57,031 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000049_0

2009-04-20 00:52:57,031 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000049_0 -> (-1, -1) from n6

2009-04-20 00:52:57,031 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000000_0

2009-04-20 00:52:57,031 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000000_0

2009-04-20 00:52:57,031 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000000_0 -> (-1, -1) from n8

2009-04-20 00:52:59,029 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Scheduled 8 outputs (0 slow hosts and0
dup hosts)

2009-04-20 00:52:59,031 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000052_0

2009-04-20 00:52:59,031 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000052_0

2009-04-20 00:52:59,031 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000074_0

2009-04-20 00:52:59,031 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000052_0 -> (-1, -1) from n2

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000074_0

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000074_0 -> (-1, -1) from n5

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000017_0

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000017_0

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000017_0 -> (-1, -1) from n6

2009-04-20 00:52:59,031 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000038_0

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000056_0

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000038_0

2009-04-20 00:52:59,032 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000056_0

2009-04-20 00:52:59,033 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000038_0 -> (-1, -1) from n4

2009-04-20 00:52:59,033 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000056_0 -> (-1, -1) from n8

2009-04-20 00:52:59,033 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000023_0

2009-04-20 00:52:59,033 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000023_0

2009-04-20 00:52:59,033 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000023_0 -> (-1, -1) from n3

2009-04-20 00:52:59,033 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000013_0

2009-04-20 00:52:59,034 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000013_0

2009-04-20 00:52:59,034 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000013_0 -> (-1, -1) from n1

2009-04-20 00:52:59,034 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000027_0

2009-04-20 00:52:59,034 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000027_0

2009-04-20 00:52:59,034 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000027_0 -> (-1, -1) from n7

2009-04-20 00:53:01,033 INFO org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 Scheduled 8 outputs (0 slow hosts and0
dup hosts)

2009-04-20 00:53:01,035 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000055_0

2009-04-20 00:53:01,035 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000055_0

2009-04-20 00:53:01,035 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000055_0 -> (-1, -1) from n3

2009-04-20 00:53:01,035 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000025_0

2009-04-20 00:53:01,036 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000025_0

2009-04-20 00:53:01,036 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000025_0 -> (-1, -1) from n6

2009-04-20 00:53:01,036 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000035_0

2009-04-20 00:53:01,036 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000035_0

2009-04-20 00:53:01,036 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000035_0 -> (-1, -1) from n7

2009-04-20 00:53:01,037 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000021_0

2009-04-20 00:53:01,037 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000021_0

2009-04-20 00:53:01,037 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000021_0 -> (-1, -1) from n1

2009-04-20 00:53:01,038 INFO org.apache.hadoop.mapred.ReduceTask: Shuffling
2 bytes (6 raw bytes) into RAM from attempt_200904181818_0020_m_000034_0

2009-04-20 00:53:01,038 INFO org.apache.hadoop.mapred.ReduceTask: Read 2
bytes from map-output for attempt_200904181818_0020_m_000034_0

2009-04-20 00:53:01,038 INFO org.apache.hadoop.mapred.ReduceTask: Rec #1
from attempt_200904181818_0020_m_000034_0 -> (-1, -1) from n5

2009-04-20 00:53:01,041 WARN org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 copy failed:
attempt_200904181818_0020_m_000044_0 from n2

2009-04-20 00:53:01,041 WARN org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 copy failed:
attempt_200904181818_0020_m_000054_0 from n4

2009-04-20 00:53:01,041 WARN org.apache.hadoop.mapred.ReduceTask:
attempt_200904181818_0020_r_000002_1 copy failed:
attempt_200904181818_0020_m_000032_0 from n8

2009-04-20 00:53:01,042 WARN org.apache.hadoop.mapred.ReduceTask:
java.io.FileNotFoundException:
http://n2:50060/mapOutput?job=job_200904181818_0020&map=attempt_200904181818
_0020_m_000044_0&reduce=2

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)

        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
sorImpl.java:39)

        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
torAccessorImpl.java:27)

        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

        at
sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:136
0)

        at java.security.AccessController.doPrivileged(Native Method)

        at
sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConne
ction.java:1354)

        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1008)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getInputStr
eam(ReduceTask.java:1293)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getMapOutpu
t(ReduceTask.java:1231)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(
ReduceTask.java:1144)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceT
ask.java:1084)

Caused by: java.io.FileNotFoundException:
http://n2:50060/mapOutput?job=job_200904181818_0020&map=attempt_200904181818
_0020_m_000044_0&reduce=2

        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1303)

        ... 4 more

 

2009-04-20 00:53:01,042 WARN org.apache.hadoop.mapred.ReduceTask:
java.io.FileNotFoundException:
http://n8:50060/mapOutput?job=job_200904181818_0020&map=attempt_200904181818
_0020_m_000032_0&reduce=2

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)

        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
sorImpl.java:39)

        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
torAccessorImpl.java:27)

        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

        at
sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:136
0)

        at java.security.AccessController.doPrivileged(Native Method)

        at
sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConne
ction.java:1354)

        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1008)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getInputStr
eam(ReduceTask.java:1293)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getMapOutpu
t(ReduceTask.java:1231)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(
ReduceTask.java:1144)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceT
ask.java:1084)

Caused by: java.io.FileNotFoundException:
http://n8:50060/mapOutput?job=job_200904181818_0020&map=attempt_200904181818
_0020_m_000032_0&reduce=2

        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1303)

        ... 4 more

 

2009-04-20 00:53:01,042 WARN org.apache.hadoop.mapred.ReduceTask:
java.io.FileNotFoundException:
http://n4:50060/mapOutput?job=job_200904181818_0020&map=attempt_200904181818
_0020_m_000054_0&reduce=2

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)

        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
sorImpl.java:39)

        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
torAccessorImpl.java:27)

        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

        at
sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:136
0)

        at java.security.AccessController.doPrivileged(Native Method)

        at
sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConne
ction.java:1354)

        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1008)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getInputStr
eam(ReduceTask.java:1293)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getMapOutpu
t(ReduceTask.java:1231)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(
ReduceTask.java:1144)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceT
ask.java:1084)

Caused by: java.io.FileNotFoundException:
http://n4:50060/mapOutput?job=job_200904181818_0020&map=attempt_200904181818
_0020_m_000054_0&reduce=2

        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1303)

        ... 4 more


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