Tim is right. CloudBase is not equivalent to HBase. HBase is column oriented database based on Google's BigTable. CloudBase is a database/data warehosue layer on top of Hadoop and by means of its SQL interface makes it easier to mine logs. So instead of writing Map-Reduce jobs for analyzing data, one can use SQL to do the same and SQL to Map Reduce job translation is handled by CloudBase.
-Taran 2009/3/3 tim robertson <timrobertson...@gmail.com> > Hi Praveen, > > I think it is more equivalent to Hive than HBase - both offer joins > and structured querying where HBase is more a column oriented data > store with many to ones embedded in a single row and (currently) only > indexes on the primary key, but secondary keys are coming. I > anticipate using HBase as a back end to harvest into, but might make > use of Hive or Cloudbase for ad hoc reporting when needed. > > Has anyone done any testing of Hive vs. Cloudbase for performance and > comparison of features? > > Cheers, > > Tim > > > 2009/3/3 Guttikonda, Praveen <praveen.guttiko...@hp.com>: > > Hi , > > Will this be competing in a sense with HBASE then ? > > > > Cheers, > > Praveen > > > > -----Original Message----- > > From: Tarandeep Singh [mailto:tarand...@gmail.com] > > Sent: Tuesday, March 03, 2009 10:12 PM > > To: core-user@hadoop.apache.org > > Subject: Re: Announcing CloudBase-1.2.1 release > > > > Hi Lukas, > > > > Yes, you are right. As of now, CloudBase does not support unique keys and > foreign keys on tables. CloudBase is designed as a database abstraction > layer on top of Hadoop, thus making it easier to query/mine logs/huge data > easily. > > > > -Taran > > > > > > On Tue, Mar 3, 2009 at 1:15 AM, Lukáš Vlček <lukas.vl...@gmail.com> > wrote: > > > >> Hi Taran, > >> This looks impressive. I quickly looked at the documentation, am I > >> right that it does not support unique keys and foreign keys for tables? > >> > >> Regards, > >> Lukas > >> > >> On Mon, Mar 2, 2009 at 8:33 PM, Tarandeep Singh <tarand...@gmail.com> > >> wrote: > >> > >> > Hi, > >> > > >> > We have just released 1.2.1 version of CloudBase on sourceforge- > >> > http://cloudbase.sourceforge.net > >> > > >> > [ CloudBase is a data warehouse system built on top of Hadoop's > >> Map-Reduce > >> > architecture. It uses ANSI SQL as its query language and comes with > >> > a > >> JDBC > >> > driver. It is developed by Business.com and is released to open > >> > source community under GNU GPL license] > >> > > >> > This release fixes one issue with the 1.2 release- Table Indexing > >> > feature was not enabled in the 1.2 release. This release fixes this > issue. > >> > > >> > Also we have updated the svn repository on the sourceforge site and > >> > we invite contributors to work with us to improve CloudBase. The svn > >> > repository url is- > >> > https://cloudbase.svn.sourceforge.net/svnroot/cloudbase/trunk > >> > > >> > We will be uploading Developer's guide/documentation on the > >> > CloudBase website very soon. Meanwhile, if someone wants to try > >> > compiling the code and play around with it, please contact me, I can > >> > help you get started. > >> > > >> > Thanks, > >> > Taran > >> > > >> > >> > >> > >> -- > >> http://blog.lukas-vlcek.com/ > >> > > >
