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Re: Reduce phase hangs - Hive - [mail # user]
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...It could be the order by since all the output records have to go through a single reducer to get ordered. Can you remove the order by and re-try the query? You can read up more a...
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Author: Mark Grover,
2012-11-09, 07:19
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Re: Hive Join with distinct rows - Hive - [mail # user]
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...Hi Praveen, Let's take an example: (from https://cwiki.apache.org/Hive/languagemanual-select.html#LanguageManualSelect-ALLandDISTINCTClauses ) hive> SELECT col1, col2 FROM t1; 1 3 1...
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Author: Mark Grover,
2012-11-09, 04:24
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Re: Alter table is giving error - Hive - [mail # user]
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...Chunky, I just tried it myself. It turns out that the directory you are adding as partition has to be empty for msck repair to work. This is obviously sub-optimal and there is a JIRA in plac...
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Author: Mark Grover,
2012-11-07, 06:52
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Re: Alter table is giving error - Hive - [mail # user]
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...Chunky, You should have run: msck repair table ; Sorry, I should have made it clear in my last reply. I have added an entry to Hive wiki for benefit of others: https://cwiki.apache.org...
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Author: Mark Grover,
2012-11-07, 06:28
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Re: TRANSFORM + LATERAL VIEW? - Hive - [mail # user]
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...Jamie, Not that I know of. Assuming you will be using LATERAL VIEW for exploding the data, I can think of 2 options at the top of my head: 1. Pass 'id' column to your transform script....
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Author: Mark Grover,
2012-11-07, 06:04
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Re: hive integrate with hbase, map to existed hbase table report column family not exist - Hive - [mail # user]
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...Indeed. https://issues.apache.org/jira/browse/HIVE-3243 Sorry you found out about it the hard way! On Tue, Nov 6, 2012 at 5:46 PM, Chris Gong wrote: ...
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Author: Mark Grover,
2012-11-07, 03:18
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Re: Alter table is giving error - Hive - [mail # user]
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...Glad to hear, Chunky. Out of curiosity, what errors did you get when using msck? On Tue, Nov 6, 2012 at 5:14 AM, Chunky Gupta wrote: ...
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Author: Mark Grover,
2012-11-06, 17:08
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Re: Hive 0.7.1 with MySQL 5.5 as metastore - Hive - [mail # user]
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...Venkatesh, What's the exact integrity constraint error you are seeing? I'd be curious to see if you restored the data from the mysqldump onto a separate schema/db on MySQL 5.1 server w...
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Author: Mark Grover,
2012-11-06, 01:17
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Re: ClassNotFoundException when use hive java client of hive + hbase integration - Hive - [mail # user]
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...Cheng, You will have to add the appropriate HBase related jars to your class path. You can do that by running "add jar" command(s) or put it in aux_lib. See this thread for reference: ...
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Author: Mark Grover,
2012-11-06, 01:03
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Re: Alter table is giving error - Hive - [mail # user]
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...Chunky, I have used "recover partitions" command on EMR, and that worked fine. However, take a look at https://issues.apache.org/jira/browse/HIVE-874. Seems like msck command in Apache...
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Author: Mark Grover,
2012-11-05, 17:38
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