| clear query|facets|time |
Search criteria: .
Results from 91 to 100 from
220 (0.206s).
|
|
|
Loading phrases to help you
refine your search...
|
|
Re: reg : reteriveing a single column from hive serde table - Hive - [mail # user]
|
|
...select * will just hdfs cat your file when you are using serde, do you have column separator in place? if not can you do select * from table limit 1 to get normally a single coul...
|
|
|
Author: Nitin Pawar,
2012-12-17, 08:24
|
|
|
Re: Possible to set map/reduce log level in configuration file? - Hive - [mail # user]
|
|
...if you want this to be set at every query you execute best would have a hiverc file and then include it as hive -i hiverc alternatively, you can create a .hiverc into your home directo...
|
|
|
Author: Nitin Pawar,
2012-12-14, 10:44
|
|
|
Re: map side join with group by - Hive - [mail # user]
|
|
...to improve the speed of the job they created map only joins so that all the records associated with a key fall to a map .. reducers slows it down. If the reducer has to do some more job then...
|
|
|
Author: Nitin Pawar,
2012-12-13, 19:30
|
|
|
Re: map side join with group by - Hive - [mail # user]
|
|
...chen in mapside join .. there are no reducers .. its MAP ONLY job On Thu, Dec 13, 2012 at 11:54 PM, Chen Song wrote: Nitin Pawar...
|
|
|
Author: Nitin Pawar,
2012-12-13, 18:42
|
|
|
Re: map side join with group by - Hive - [mail # user]
|
|
...Thats because for the first job the join keys are different and second job group by keys are different, you just cant assume join keys and group keys will be same so they are two different j...
|
|
|
Author: Nitin Pawar,
2012-12-13, 16:04
|
|
|
Re: Incresing map reduce tasks will increse the time of the cpu does this seem to be correct - Hive - [mail # user]
|
|
...If the number of maps or reducers your job launched are more than the jobqueue/cluster capacity, cpu time will increase On Dec 13, 2012 4:02 PM, "imen Megdiche" wrote: ...
|
|
|
Author: Nitin Pawar,
2012-12-13, 10:41
|
|
|
Re: help on failed MR jobs (big hive files) - Hive - [mail # user]
|
|
...6GB size is nothing. We have done it with few TB of data in hive. Error you are seeing is on the hadoop side. You can always optimize your query based on the hadoop compute capacity yo...
|
|
|
Author: Nitin Pawar,
2012-12-13, 07:36
|
|
|
Re: REST API for Hive queries? - Hive - [mail # user]
|
|
...Hive takes a longer time to respond to queries as the data gets larger. Best way to handle this is you process the data on hive and store in some rdbms like mysql etc. On top of that t...
|
|
|
Author: Nitin Pawar,
2012-12-13, 07:30
|
|
|
Re: map side join with group by - Hive - [mail # user]
|
|
...I think Chen wanted to know why this is two phased query if I understood it correctly When you run a mapside join .. it just performs the join query .. after that to execute the group ...
|
|
|
Author: Nitin Pawar,
2012-12-13, 05:30
|
|
|
Re: Give Custom Username to Hive Output Files - Hive - [mail # user]
|
|
...you will need to use kerbrose based authentications for the same. that way you will have authentication and clear ownership defined as well On Wed, Dec 12, 2012 at 10:10 AM, Sa...
|
|
|
Author: Nitin Pawar,
2012-12-12, 07:12
|
|
|
|
