Hi Manish, Thanks for your help.I did the same using UDF.Now trying with Transform,Map and Reduce clauses.so is it mean by using java we have to goahead through UDF and for other languages using MapReduce Scripts i.e., the Transform,Map and Reduce clauses. Please correct me if am wrong.
Thanks & Regards,**** Manu **** On Tue, Sep 25, 2012 at 5:19 PM, Manish.Bhoge <manish.bh...@target.com>wrote: > Manu,**** > > ** ** > > If you have written UDF in Java for Hive then you need to copy your JAR on > your Hadoop cluster in /usr/lib/hive/lib/ folder to hive to use this JAR. > **** > > ** ** > > Thank You,**** > > Manish**** > > ** ** > > *From:* Manu A [mailto:hadoophi...@gmail.com] > *Sent:* Tuesday, September 25, 2012 3:44 PM > *To:* user@hive.apache.org > *Subject:* Custom MR scripts using java in Hive**** > > ** ** > > Hi All,**** > > I am learning hive. Please let me know if any one tried with custom Map > Reduce scripts using java in hive or refer me some links and blogs with an > example.**** > > **** > > when i tried i got the below error :**** > > **** > > Hadoop job information for Stage-1: number of mappers: 1; number of > reducers: 0 > 2012-09-25 02:47:23,720 Stage-1 map = 0%, reduce = 0% > 2012-09-25 02:47:56,943 Stage-1 map = 100%, reduce = 100% > Ended Job = job_201209222231_0001 with errors > Error during job, obtaining debugging information... > Examining task ID: task_201209222231_0001_m_000002 (and more) from job > job_201209222231_0001 > Exception in thread "Thread-51" 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:619) > Caused by: java.io.IOException: Server returned HTTP response code: 400 > for URL: // removed as confidential**** > > at > sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1313) > 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 HDFS Read: 0 HDFS Write: 0 FAIL > Total MapReduce CPU Time Spent: 0 msec**** > > **** > > **** > > **** > > **** > > Thanks for ur help in advance :)**** > > **** > > **** > > **** > > Thanks & Regards,**** > > Manu **** > > **** > > **** > > **** > > **** > > ** ** > > ** ** > -- *Thanks & Regards,* *Tamil*
