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Basic question regarding calculating number of reducers - Hive - [mail # user]
...Hi,I have a basic question regarding the calculation of the number of reducersin hive. I know that is computed as /.In case of compressed files it is not clear whether total input size iscal...
   Author: KayVajj, 2014-06-27, 07:08
[expand - 1 more] - Determining the number of buckets in hive - Hadoop - [mail # user]
...Hi,I know this question might have been beaten to death, but I could not findan answer to a particular question. I'm using hive 0.10.xI have a table partitioned on day and I would like to bu...
   Author: KayVajj, 2014-06-26, 17:55
Question regarding cluster by multiple columns - Hive - [mail # user]
...Hi,I'm studying the bucketed tables as an option for my storage. What would beuse case where it is useful to cluster by multiple columns?I 'm trying to solve a problem of optimizing a join b...
   Author: KayVajj, 2014-01-27, 04:03
[expand - 1 more] - Re: Using Cluster by to improve Group by Performance - Hive - [mail # user]
...Any response or pointers to understand how Cluster By in sub queries can affect the performance/speed of outer queries is helpful.  Thanks Kay   On Mon, Oct 28, 2013 at 1:17 PM, Ka...
   Author: KayVajj, 2013-10-31, 21:35
What is the use of compressed field in the hive storage descriptor - Hive - [mail # user]
...A desc extended command results in the following  Table( tableName:table_namet, dbName:cybs_test, owner:[EMAIL PROTECTED], createTime:1380232668, lastAccessTime:0, retention:0, sd:Stora...
   Author: KayVajj, 2013-09-26, 22:28
mapred Configuration Vs mapReduce configuration in Ooozie - MapReduce - [mail # user]
...I am implementing an oozie workflow MR job . I was not sure if I have to use the mapred properties vs the mapreduce properties.  I have seen that if mapreduce properties were to be used...
   Author: KayVajj, 2013-09-23, 21:39
Question regarding --hive-drop-import-delims - Sqoop - [mail # user]
...Hi,  I have a question regarding the option --hive-drop-import-delims.  Does it apply only when I'm importing to Hive or can it be used in the case when we are importing data to HD...
   Author: KayVajj, 2013-09-13, 18:59
non-string partition column types is it discouraged - Hive - [mail # user]
...I have a question regarding the partition column types in a Hive table. We run hive 0.9.0 in a cloudera distribution and we're having issue trying to connect to hive using the Cloudera Table...
   Author: KayVajj, 2013-06-14, 06:37
Lots of files in a directory vs files in sub directories - Hadoop - [mail # user]
...Hi,  I am trying to figure s strategy around partitions in hive. I'm thinking either a monthly or a daily partition. The usage directs me go towards the daily partition scheme(querying ...
   Author: KayVajj, 2013-06-03, 04:11
Question regarding Hadoop ToolRunner Options - MapReduce - [mail # user]
...I see that the GenericOptionsParser and ToolRunner have three options to "provide" files/resources to the Task.  -files -archives -libjars   The description for all these options l...
   Author: KayVajj, 2013-05-09, 20:44
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