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HIVE not creating _SUCCESS ? - Hive - [mail # user]
...I'm very surprised to find that HIVE actually does not create a _SUCCESS inits output file dir..I had thought that since every MR job by default creates a _SUCCESS, andHIVE is compiled into ...
   Author: Yang, 2014-08-11, 06:30
doing upsert possible? - Hive - [mail # user]
...if we have a huge table, and every 1 hour only 1% of that has some updates,it would be a huge waste to slurp in the whole table through MR job andwrite out the new table.instead, if we store...
   Author: Yang, 2014-07-24, 23:07
[expand - 1 more] - Re: does the HBase-Hive integration support using HBase index (primary key or secondary index) in the JOIN implementatoin? - Hive - [mail # user]
...kind of found thishttp://hortonworks.com/blog/hbase-via-hive-part-1/"From a performance perspective, there are things Hive can do today (ie,not dependent on data types) to take advantage of ...
   Author: Yang, 2014-07-24, 21:10
random NPE in HiveInputFormat.init() ?? - Hive - [mail # user]
...we are getting a random (happening about 20% of the time, if we repeatedlyrun the same query) error with hive 0.13.0.2java.lang.NullPointerException        atorg.apa...
   Author: Yang, 2014-07-19, 06:04
[expand - 3 more] - Re: how to control hive log location on 0.13? - Hive - [mail # user]
...it's in /tmp/my_user/the funny thing is that I already  have a hive.log there.On Fri, Jul 18, 2014 at 6:01 PM, Andre Araujo  wrote: ...
   Author: Yang, 2014-07-19, 05:25
[expand - 1 more] - Re: local-mode doesn't work? - Hive - [mail # user]
...also another important question: is it possible to read real hive tables onHDFS even though you are running hive in local mode?in most cases the tables are complex and it's a chore to replic...
   Author: Yang, 2014-06-18, 18:24
[expand - 1 more] - Re: HiveMetaStoreClient only sees one of my DBs ? - Hive - [mail # user]
...thanks, I fixed it. it turns out that I need to put my hive-site.xml into classpath, without this, it still mysteriously works and somehow gave me a "default" db. (I wish it had given a more...
   Author: Yang, 2013-12-30, 21:38
[expand - 2 more] - Re: AvroStorage can't read multiple files? - Pig - [mail # user]
...ok, tried "LOAD 'mydir/*.avro'   ", doesn't work either.   "LOAD 'mydir/' " works   On Tue, Oct 1, 2013 at 10:02 AM, Yang  wrote:  ...
   Author: Yang, 2013-10-01, 17:54
[expand - 1 more] - Re: how to address "nested structure" in PIG? - Pig - [mail # user]
...l found out, actually the original form works fine, i.e. "by value.seqNum == 1". but the error I got was due to the fact that the first "load" command actually fails to load anything, i.e. b...
   Author: Yang, 2013-10-01, 14:40
[expand - 2 more] - Re: UDF error? - Hive - [mail # user]
...ok.... I found the reason, as I modified the jar file, though I re-ran "ADD .....MyUdf.jar;  create temporary function ....; ", it doesn't take effect. I have to get out of hive session...
   Author: Yang, 2013-09-30, 22:49
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