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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hive" by petewyckoff
Date Thu, 04 Sep 2008 21:39:05 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The following page has been changed by petewyckoff:
http://wiki.apache.org/hadoop/Hive

The comment on the change is:
made clear hive can read/write data in any format

------------------------------------------------------------------------------
  
  = What is NOT Hive =
  Hive is based on Hadoop which is a batch processing system. Accordingly, this system does
not and cannot promise low latencies on queries. The paradigm here is strictly of submitting
jobs and being notified when the jobs are completed as opposed to real time queries. As a
result it should not be compared with systems like Oracle where analysis is done on a significantly
smaller amount of data but the analysis proceeds much more iteratively with the response times
between iterations being less than a few minutes. For Hive queries response times for even
the smallest jobs can be of the order of 5-10 minutes and for larger jobs this may even run
into hours.
+ 
+ Hive does not mandate read or written data be in "hive format" - there is no such thing;
Hive works equally well on Thrift, RecordIO, control delimited, or your data format.
+ 
  
  = Status =
  Hive has been submitted as a contrib project in hadoop trunk. The details of its availability
are available at [https://issues.apache.org/jira/browse/HADOOP-3601 Hadoop JIRA]

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