Hi, all. I am trying to run the terasort to collect some profile information on pseudo distributed mode of hadoop. I found hadoop could achive it by define the mapred.task.profile in conf/mapred-site.xml, so i add some properties to the conf/mapred-site.xml like this:
------conf/mapred-site.xml------------------ .... <property> <name>mapred.task.profile</name> <value>true</value> </property> <property> <name>keep.failed.task.files</name> <value>true</value> </property> <property> <name>keep.task.files.pattern</name> <value>.*</value> </property> .... --------------------------------------------- When I run the terasort, exception is throwed out like this: ------Exception showed on the screen---------------------------------------------------------- 10/08/02 04:35:05 INFO mapred.JobClient: Running job: job_201008020434_0001 10/08/02 04:35:06 INFO mapred.JobClient: map 0% reduce 0% java.io.FileNotFoundException: http://localhost:50060/tasklog?plaintext=true&taskid=attempt_201008020434_0001_m_000000_0&filter=profile at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:884) at org.apache.hadoop.mapred.JobClient.downloadProfile(JobClient.java:1225) at org.apache.hadoop.mapred.JobClient.monitorAndPrintJob(JobClient.java:1302) at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1251) at org.apache.hadoop.examples.terasort.TeraSort.run(TeraSort.java:248) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.examples.terasort.TeraSort.main(TeraSort.java:257) at java.lang.reflect.AccessibleObject.invokeV(AccessibleObject.java:197) at java.lang.reflect.Method.invoke(Method.java:238) 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 java.lang.reflect.AccessibleObject.invokeV(AccessibleObject.java:197) at java.lang.reflect.Method.invoke(Method.java:238) at org.apache.hadoop.util.RunJar.main(RunJar.java:156) --------------------------------------------- -------------------------------------------------- I will be very thankful If someone could give me any sugguestion to solve this problem. Look forward to any reply. Best Regards, Cindy
