Bharath,
You need to outline what your actual requirements are if you want more
help. Open-ended questions that just ask for code are usually not answered.
What exactly are you trying to join? Does this join need to happen in
"realtime" or is this part of a batch process?
Could you denormalize your data to prevent needing the join at runtime?
If you provide details about exactly what your data/schema is like (or a
similar example if this is confidential), then many of us are more than
happy to help you figure out what approach my work best.
When working with HBase, figuring out how you want to pull your data out
is key to how you want to put the data in.
JG
bharath vissapragada wrote:
Amandeep , can you tell me what kinds of joins u have implemented ? and
which works the best (based on observation ).. Can u show us the source code
(if possible)
Thanks in advance
On Wed, Jul 15, 2009 at 10:46 AM, Amandeep Khurana <[email protected]> wrote:
I've been doing joins by writing my own MR jobs. That works best.
Not tried cascading yet.
-ak
On 7/14/09, bharath vissapragada <[email protected]>
wrote:
Thats fine .. I know that hbase has completely different usage compared
to
SQL .. But for my application there is some kind of dependency involved
among the tables . So i need to implement a Join . I wanted to know
whether
there is some kind of implementation already
..
Thanks
On Wed, Jul 15, 2009 at 10:30 AM, Ryan Rawson <[email protected]>
wrote:
HBase != SQL.
You might want map reduce or cascading.
On Tue, Jul 14, 2009 at 9:56 PM, bharath
vissapragada<[email protected]> wrote:
Hi all ,
I want to join(similar to relational databases join) two tables in
HBase
.
Can anyone tell me whether it is already implemented in the source !
Thanks in Advance
--
Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz
