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Re: alter external table location with new namenode address - Hive - [mail # user]
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...Yes you need to update the metastore db directly for this to be in effect. Regards Bejoy KS Sent from handheld, please excuse typos. From: Alok Kumar Date: Fri, 24 Au...
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Author: Bejoy KS,
2012-08-24, 12:10
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Re: move Hive from one distribution to another - Hive - [mail # user]
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...Hi Anson Hive has the EXPORT IMPORT feature since 0.8 that EXPORTs the table structure as well as data into a file which can be used for I MPORTing back to a new instance. A sam...
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Author: Bejoy KS,
2012-08-21, 17:23
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Re: how to handling complex log file(compressed, 200G) - Hive - [mail # user]
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...Hi Kiwon Lee There isn't anything specific you need to do in hive DDL or DML to parse gz files. You need to ensure that 'org.apache.hadoop.io.compress.GzipCodec' is availabe in 'io.com...
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Author: Bejoy KS,
2012-08-17, 19:23
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Re: UNION ALL - what is the simplest form - Hive - [mail # user]
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...Hi Anand You necessarily don't need to go in for UNION ALL for your requirement. Use INSERT INTO instead, which has less overhead. It is supported from hive 0.8 . INSERT IN...
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Author: Bejoy KS,
2012-08-16, 07:42
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Re: how to do random sampling in hive? - Hive - [mail # user]
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...Hi, To get more accurate sampling, you need to bucketize your table based on the columns you wish to use in sampling. Also use the TABLESAMPLE clause while getting the required sample ...
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Author: Bejoy KS,
2012-08-15, 16:04
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Re: loading data in HDFS similar to raid concept(i.e i have 100GB data file load as 30GB in one node, 40 GB in other node and 30GB in other node - Hive - [mail # user]
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...Hi Shaik AFAIK it is not possible in hadoop. The hdfs storage concept is different from RAID, In hdfs your file is broken down to blocks and each of these blocks are stored in one or m...
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Author: Bejoy KS,
2012-08-13, 11:11
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Re: Exploding Array of String in Hive - Hive - [mail # user]
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...Hi Raihan To fetch an element of an Array you can just specify the position of the element in your query. Say if you have a table like 'test_table' with a field 'arr_clmn Array',...
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Author: Bejoy KS,
2012-08-11, 08:53
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Re: [ANNOUNCE] New Hive Committer - Navis Ryu - Hive - [mail # dev]
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...Congrats Navis.. :) Regards Bejoy KS Sent from handheld, please excuse typos. From: alo alt Date: Fri, 10 Aug 2012 17:08:07 To: Reply-To: [EMAIL PROTECTED...
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Author: Bejoy KS,
2012-08-10, 15:10
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Re: Caused by: java.io.EOFException - Hive - [mail # user]
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...It could be like the file corresponding to the partition dt='20120731' got corrupted. This file as pointed in the error logs should be the culprit. hdfs://ares-nn/apps/hdmi-technology/...
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Author: Bejoy KS,
2012-08-07, 00:27
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Re: Passing date as command line arguments - Hive - [mail # user]
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...Yes that is the right issue. Variable substitution is not happening. I can't say much here as I haven't tried out this on 0.6 . The code on my blog post is based on 0.7 or higher version I g...
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Author: Bejoy KS,
2012-08-04, 07:39
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