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hadoop fs -text cannot get .deflate file decompressed - Hive - [mail # user]
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...I got some hive generated files with .defate extension. I know this is a compressed file. It is not my data so i canot change the option to uncompressed. I just want to view the file content...
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Author: Richard,
2013-01-31, 06:39
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Re:how may map-reduce needed in a hive query - Hive - [mail # user]
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...thanks. I used explain command and get the plan, but I am still confused. The below is the description of two map-reduce stages: it seems that in stage-1 the aggregation has already b...
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Author: Richard,
2013-01-23, 05:54
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how may map-reduce needed in a hive query - Hive - [mail # user]
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...I am wondering how to determine the number of map-reduce for a hive query. for example, the following query select sum(c1), sum(c2), k1 from { select transform(*) using '...
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Author: Richard,
2013-01-23, 03:45
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how to let hive quit if any error occurs - Hive - [mail # user]
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...Hi, I usually write hive script. I found that sometimes if an error occurs, the hive script will continue to execute. I do not want this behavor becuase it may hide some problem...
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Author: Richard,
2013-01-15, 05:12
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Re:Re: create a hive table: always a tab space before each line - Hive - [mail # user]
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...thanks. it seems that as long as I use sequencefile as the storage format, there will be \t before the first column. If this output is continously used by hive, it is fine. The problem is th...
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Author: Richard,
2013-01-14, 14:58
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Re:Re: create a hive table: always a tab space before each line - Hive - [mail # user]
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...I am trying to create a table and insert overwrite it, so the data is supposed to be generated. At 2013-01-09 17:17:06,"Anurag Tangri" wrote: Hi Richard, You...
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Author: Richard,
2013-01-09, 09:22
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hive script: stop when error occurs - Hive - [mail # user]
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...hi I am wondering if there is any configuration option that allows the hive script to stop when an error occurs. e.g., hive command 1; hive command 2; hive command 3; if error oc...
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Author: Richard,
2012-07-16, 09:39
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user define data format - Hive - [mail # user]
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...Hi, I want to use Hive on some data in the following format: \0x01 field1=val1\0x01 field2=val2\0x01 ... \0x01 the lines between and are a record. How should I define the t...
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Author: Richard,
2012-05-21, 09:44
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Re:Re: update a hive table - Hive - [mail # user]
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...I see, thanks. At 2012-03-16 20:30:24,"Bejoy Ks" wrote: Hi Robert, Sorry I missed answering your question It is not possible in hive. At a bare minimum hive would o...
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Author: Richard,
2012-03-19, 02:30
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update a hive table - Hive - [mail # user]
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...if I wang to update a table, e.g, insert overwrite table mytable select lower(col1), col2, col3 from mytable; if mytable has many columns but I only need to update one of them,...
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Author: Richard,
2012-03-16, 10:56
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