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Re: How to do updation in Hive? - Hive - [mail # dev]
...Hi Bhavesh, I am no expert in this matter but typical Hive use cases don't involve updates. If your workflow, relies considerably on updating existing data in Hive (i.e. in HDFS), you might ...
   Author: Mark Grover, 2012-02-14, 00:42
Re: Delimiters for nested structures - Hive - [mail # user]
...That's correct. See this for reference: https://issues.apache.org/jira/browse/HIVE-365  Mark Grover, Business Intelligence Analyst OANDA Corporation   www: oanda.com www: fxtrade.c...
   Author: Mark Grover, 2012-02-09, 14:44
Re: external partitioned table - Hive - [mail # user]
...Hi Koert, That's because Hive metastore doesn't know about the partitions you added. I was in a similar situation but I use Amazon EMR and in their version of Hive, one can run the command "...
   Author: Mark Grover, 2012-02-08, 17:23
Re: Error when Creating an UDF - Hive - [mail # user]
...Hi Jean-Charles, Please make sure that your jar is built properly and the class com.autoscout24.hive.udf.Md5 exists within the jar. Also, make sure the jar gets added properly to Hive. You c...
   Author: Mark Grover, 2012-02-06, 18:01
Re: How to check if all key/value pairs in two maps are equal? - Hive - [mail # user]
...Hi Mark, How about writing your own UDF that does the comparison you want? UDFs can accept complex arguments (e.g. Maps) just like they do primitive o nes.  If you want to go the string...
   Author: Mark Grover, 2012-02-03, 16:43
Re: Not able to create table in hive - Hive - [mail # user]
...Hi Manish, Sounds like a problem with your metastore. Can you verify that you have the access and correct permissions to your metastore?  Mark  Mark Grover, Business Intelligence A...
   Author: Mark Grover, 2012-02-02, 14:44
Re: Invoke a UDAF inside another UDAF - Hive - [mail # user]
...Rohan, You could do it one of the following ways: 1) Write a UDAF that does the avg(f2 - avg_f2) computation. 2) Write a custom reducer that does the avg(f2 - avg_f2) computation. 3) Do it w...
   Author: Mark Grover, 2012-02-01, 19:06
Re: Hive query result in sequence file - Hive - [mail # user]
...Andrew, This might come in handy: http://www.congiu.com/node/7  Mark Grover, Business Intelligence Analyst OANDA Corporation   www: oanda.com www: fxtrade.com  e: [EMAIL PROTE...
   Author: Mark Grover, 2012-02-01, 15:54
Re: Hive JOIN fails if SELECT statement contains fields from the first table. - Hive - [mail # user]
...Hi Bing, Something seems wrong about your create table statements. You are using "LOAD DATA LOCAL INPATH" to load data into Hive tables. This  makes me think that the files /home/biadmi...
   Author: Mark Grover, 2012-01-16, 13:11
[expand - 1 more] - Re: how to avoid scan the same table multi times? - Hive - [mail # user]
...Xiaobin, I would assume that's what Martin meant. You can always add dashes to make  it more readable:-)  Mark Grover, Business Intelligence Analyst OANDA Corporation  www: oa...
   Author: Mark Grover, 2012-01-13, 15:41
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB