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Hive >> mail # user >> Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask MapReduce Jobs Launched:


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Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask MapReduce Jobs Launched:
Hi All,

even If if perform count(*) operation on table it shows error,

select count(*) from dummysite;
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks determined at compile time: 1
In order to change the average load for a reducer (in bytes):
  set hive.exec.reducers.bytes.per.reducer=<number>
In order to limit the maximum number of reducers:
  set hive.exec.reducers.max=<number>
In order to set a constant number of reducers:
  set mapred.reduce.tasks=<number>
Starting Job = job_201207231123_0011, Tracking URL = http://localhost:50030/jobdetails.jsp?jobid=job_201207231123_0011
Kill Command = /HADOOP/hadoop-0.20.2/bin/../bin/hadoop job  -Dmapred.job.tracker=localhost:9001 -kill job_201207231123_0011
Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 1
2012-07-24 13:38:18,928 Stage-1 map = 0%,  reduce = 0%
2012-07-24 13:38:21,938 Stage-1 map = 100%,  reduce = 0%
2012-07-24 13:39:22,170 Stage-1 map = 100%,  reduce = 0%
2012-07-24 13:39:25,181 Stage-1 map = 100%,  reduce = 100%
Ended Job = job_201207231123_0011 with errors
Error during job, obtaining debugging information...
Examining task ID: task_201207231123_0011_m_000002 (and more) from job job_201207231123_0011
Exception in thread "Thread-93" 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.JobDebugger.showJobFailDebugInfo(JobDebugger.java:211)
    at org.apache.hadoop.hive.ql.exec.JobDebugger.run(JobDebugger.java:81)
    at java.lang.Thread.run(Thread.java:680)
Caused by: java.io.IOException: Server returned HTTP response code: 407 for URL: http://10.203.33.81:50060/tasklog?taskid=attempt_201207231123_0011_r_000000_0&start=-8193
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1436)
    at java.net.URL.openStream(URL.java:1010)
    at org.apache.hadoop.hive.ql.exec.errors.TaskLogProcessor.getErrors(TaskLogProcessor.java:120)
    ... 3 more
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask
MapReduce Jobs Launched:
Job 0: Map: 1  Reduce: 1   HDFS Read: 24 HDFS Write: 0 FAIL
Total MapReduce CPU Time Spent: 0 msec
Please suggest why this error is comming :-(

Regards
Yogesh Kumar

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