Hi,all.I meet a problem,here is the exception: select a.mid from origin_performance a; Total MapReduce jobs = 1 Launching Job 1 out of 1 Number of reduce tasks is set to 0 since there's no reduce operator Starting Job = job_201103220234_0003, Tracking URL = http://localhost:50030/jobdetails.jsp?jobid=job_201103220234_0003 Kill Command = /opt/hadoop-0.20.2/bin/../bin/hadoop job -Dmapred.job.tracker=localhost:9001 -kill job_201103220234_0003 2011-03-22 03:02:10,364 Stage-1 map = 0%, reduce = 0% 2011-03-22 03:02:52,594 Stage-1 map = 100%, reduce = 100% Ended Job = job_201103220234_0003 with errors java.lang.RuntimeException: Error while reading from task log url at org.apache.hadoop.hive.ql.exec.errors.TaskLogProcessor.getErrors(TaskLogProcessor.java:130) at org.apache.hadoop.hive.ql.exec.ExecDriver.showJobFailDebugInfo(ExecDriver.java:931) at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:716) at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:107) at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:55) at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:633) at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:506) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:384) at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:138) at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:197) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:302) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:600) at org.apache.hadoop.util.RunJar.main(RunJar.java:156) Caused by: java.io.FileNotFoundException: http://ubuntu:50060/tasklog?taskid=attempt_201103220234_0003_m_000000_3&all=true at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1306) at java.net.URL.openStream(URL.java:1011) at org.apache.hadoop.hive.ql.exec.errors.TaskLogProcessor.getErrors(TaskLogProcessor.java:120) ... 15 more Ended Job = job_201103220234_0003 with exception 'java.lang.RuntimeException(Error while reading from task log url)' FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.ExecDriver
I have check this folder(attempt_201103220234_0003_m_000000_3) in hadoop userlogs. Both stdout and stderr are empty.And I have not seen any error in this task logs.