Dear all,
I am new in learning hadoop, encountered a problem while complying "Hadoop/Quick Start(http://hadoop.apache.org/common/docs/current/quickstart.html)" tutorial. Everything in "cygwin" is okay, but in "Daemn Small Linux(DSL)". In "Daemn Small Linux", after executing the command: ------->bin/hadoop jar hadoop-0.20.1-examples.jar grep input output 'dfs[a-z.]+' output errors as following "OUTPUT_01", base on the errors, I tried "df -k", output as "OUTPUT_02", it wasn't NULL/empty. I tried searching all the mailing list of common-user & core-user and Google, got noting solution, so I have to send this email to ask you gus' help modestly. Please kindly reply if anyone have idea. Thanks in advance! =) Best regards. Neo Tan ====>OUTPUT_01:<========================================================================== r...@box:/home/hadoop/hadoop-0.20.1# bin/hadoop jar hadoop-0.20.1-examples.jar grep input output 'dfs[a-z.]+' 09/11/10 17:12:43 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId= 09/11/10 17:12:43 INFO mapred.FileInputFormat: Total input paths to process : 5 09/11/10 17:12:44 INFO mapred.FileInputFormat: Total input paths to process : 5 09/11/10 17:12:44 INFO mapred.JobClient: Running job: job_local_0001 09/11/10 17:12:44 INFO mapred.MapTask: numReduceTasks: 1 09/11/10 17:12:44 INFO mapred.MapTask: io.sort.mb = 100 09/11/10 17:12:45 INFO mapred.MapTask: data buffer = 79691776/99614720 09/11/10 17:12:45 INFO mapred.MapTask: record buffer = 262144/327680 09/11/10 17:12:45 INFO mapred.MapTask: Starting flush of map output 09/11/10 17:12:45 WARN mapred.LocalJobRunner: job_local_0001 java.io.IOException: Expecting a line not the end of stream at org.apache.hadoop.fs.DF.parseExecResult(DF.java:109) at org.apache.hadoop.util.Shell.runCommand(Shell.java:179) at org.apache.hadoop.util.Shell.run(Shell.java:134) at org.apache.hadoop.fs.DF.getAvailable(DF.java:73) at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:329) at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:124) at org.apache.hadoop.mapred.MapOutputFile.getOutputFileForWrite(MapOutputFile.java:61) at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:1431) at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1116) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:359) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:176) 09/11/10 17:12:45 WARN util.Shell: Error reading the error stream java.io.IOException: Stream closed at java.io.BufferedReader.ensureOpen(BufferedReader.java:97) at java.io.BufferedReader.readLine(BufferedReader.java:292) at java.io.BufferedReader.readLine(BufferedReader.java:362) at org.apache.hadoop.util.Shell$1.run(Shell.java:164) 09/11/10 17:12:45 INFO mapred.JobClient: map 0% reduce 0% 09/11/10 17:12:45 INFO mapred.JobClient: Job complete: job_local_0001 09/11/10 17:12:45 INFO mapred.JobClient: Counters: 0 java.io.IOException: Job failed! at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1252) at org.apache.hadoop.examples.Grep.run(Grep.java:69) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.examples.Grep.main(Grep.java:93) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:64) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.util.RunJar.main(RunJar.java:156) r...@box:/home/hadoop/hadoop-0.20.1# ========================================================================================= ====>OUTPUT_02:<================================= r...@box:/home/hadoop/hadoop-0.20.1# df -k Filesystem 1k-blocks Used Available Use% Mounted on /dev/hda1 8254240 1027828 6807120 13% / ================================================= _________________________________________________________________ Keep your friends updated―even when you’re not signed in. http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_5:092010
