RE: hive query fails
Hi Ajit, Select * command doesn't invoke reducer, its just dump the data. check out your network proxy settings. Regards Yogesh Kumar Dhari From: ajit.shreevast...@hcl.com To: user@hive.apache.org Date: Mon, 1 Oct 2012 16:29:27 +0530 Subject: hive query fails Dear all, I am running following query and I m not getting any output. But select * from pokes is working fine. [hadoop@NHCLT-PC44-2 bin]$ hiveLogging initialized using configuration in file:/home/hadoop/Hive/conf/hive-log4j.propertiesHive history file=/home/hadoop/tmp/hadoop/hive_job_log_hadoop_201210011620_669979453.txthive select count(1) from pokes;Total MapReduce jobs = 1Launching Job 1 out of 1Number of reduce tasks determined at compile time: 1In order to change the average load for a reducer (in bytes): set hive.exec.reducers.bytes.per.reducer=numberIn order to limit the maximum number of reducers: set hive.exec.reducers.max=numberIn order to set a constant number of reducers: set mapred.reduce.tasks=numberStarting Job = job_201210011527_0004, Tracking URL = http://NHCLT-PC44-2:50030/jobdetails.jsp?jobid=job_201210011527_0004Kill Command = /home/hadoop/hadoop-1.0.3/bin/hadoop job -kill job_201210011527_0004 Thanks and RegardsAjit Kumar ShreevastavaADCOE (App Development Center Of Excellence )Mobile: 9717775634 ::DISCLAIMER:: The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
Re: hive query fails
select * from table does not start a mapreduce job what you need to check why is your job not started on jobtracker (may be enough resources not available or something wrong with setup) On Mon, Oct 1, 2012 at 4:29 PM, Ajit Kumar Shreevastava ajit.shreevast...@hcl.com wrote: Dear all, I am running following query and I m not getting any output. But select * from pokes is working fine. [hadoop@NHCLT-PC44-2 bin]$ hive Logging initialized using configuration in file:/home/hadoop/Hive/conf/hive-log4j.properties Hive history file=/home/hadoop/tmp/hadoop/hive_job_log_hadoop_201210011620_669979453.txt hive select count(1) from pokes; 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_201210011527_0004, Tracking URL = http://NHCLT-PC44-2:50030/jobdetails.jsp?jobid=job_201210011527_0004 Kill Command = /home/hadoop/hadoop-1.0.3/bin/hadoop job -kill job_201210011527_0004 Thanks and Regards Ajit Kumar Shreevastava ADCOE (App Development Center Of Excellence ) Mobile: 9717775634 ::DISCLAIMER:: The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. -- Nitin Pawar
