Hi, I have problem to run mapreduce grep application
I upload text file but I got this error message.
I googled several times, but I can't solve this problem.
What is the main cause of this problem?
Error: org.apache.hadoop.fs.ChecksumException: Checksum error:
/10GB_1/file99 at 282861568 exp: 1915149736 got: 2022453099
at
org.apache.hadoop.util.NativeCrc32.nativeComputeChunkedSums(Native Method)
at
org.apache.hadoop.util.NativeCrc32.verifyChunkedSums(NativeCrc32.java:59)
at
org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:308)
at
org.apache.hadoop.hdfs.client.impl.BlockReaderRemote2.readNextPacket(BlockReaderRemote2.java:216)
at
org.apache.hadoop.hdfs.client.impl.BlockReaderRemote2.read(BlockReaderRemote2.java:144)
at
org.apache.hadoop.hdfs.DFSInputStream$ByteArrayStrategy.doRead(DFSInputStream.java:827)
at
org.apache.hadoop.hdfs.DFSInputStream.readBuffer(DFSInputStream.java:906)
at
org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:965)
at
org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:1011)
at java.io.DataInputStream.read(DataInputStream.java:149)
at
org.apache.hadoop.mapreduce.lib.input.UncompressedSplitLineReader.fillBuffer(UncompressedSplitLineReader.java:62)
at
org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:218)
at org.apache.hadoop.util.LineReader.readLine(LineReader.java:176)
at
org.apache.hadoop.mapreduce.lib.input.UncompressedSplitLineReader.readLine(UncompressedSplitLineReader.java:94)
at
org.apache.hadoop.mapreduce.lib.input.LineRecordReader.nextKeyValue(LineRecordReader.java:193)
at
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:562)
at
org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
at
org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:793)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1893)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:171)
Regards,
Daegyu
ᐧ
