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Map Join Problems - Hive - [mail # user]
...Using Hive 0.8.1 on Amazon EMR Hadoop Job. Some problems with using mapjoin: 1) Exceed memory, I got the following errors.  Then I remove mapjoin in the query and instead set hive.auto....
   Author: Peter Chu, 2013-05-28, 03:17
Hive Map Join Memory Limit - Hive - [mail # user]
...Hi, I ran into memory problem while using Map Join.  Errors below, how do I increase the map join memory size and if there are other solutions?   PeterExecution log at: /tmp/hadoop...
   Author: Peter Chu, 2013-05-26, 19:04
Max Size of Hive String Type - Hive - [mail # user]
...Hi,  The results of my hive jobs is inserted in a MySql db.   One of the tables in MySql has a field of text type, which corresponds to the String type in Hive's external table. &n...
   Author: Peter Chu, 2013-05-14, 17:08
Table vs View - Hive - [mail # user]
...On Hive, I am using lots of tables that builds other tables, sorts of like a funnel, funneling data to get the parts I want. I am wondering what is the advantage to creating views vs creatin...
   Author: Peter Chu, 2013-05-06, 18:39
RE: Hive Group By Limitations - Hive - [mail # user]
...Thanks Nitin and Michael, The reason I asked is because I cannot help but wonder if it takes extra time with all those group by columns.   Say for example, I have a employees table with...
   Author: Peter Chu, 2013-05-06, 18:27
RE: Hive QL - NOT IN, NOT EXIST - Hive - [mail # user]
...Thanks Stephen, Will start a cluster today to see if it helps. Peter  Date: Mon, 6 May 2013 00:05:45 -0700 Subject: Re: Hive QL - NOT IN, NOT EXIST From: [EMAIL PROTECTED] To: [EMAIL PR...
   Author: Peter Chu, 2013-05-06, 17:56
AmazonClientException: Unable to execute HTTP request: peer not authenticated - Hive - [mail # user]
...Hi,  I am trying to do a hive run, every time towards the end of the run, over 90% of mapping (and only mapping),it will give this error.  I did the same run before and it works fi...
   Author: Peter Chu, 2013-04-30, 03:18
RE: A GenericUDF Function to Extract a Field From an Array of Structs - Hive - [mail # user]
...Hi Navis류승우, Thank you very much.  Your code works, now I can run the function against external table.  Thank you so much. However, do you or can someone point me into testing this...
   Author: Peter Chu, 2013-04-05, 18:43
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