Can you use a filter to do this? If no pattern to the excludes then
it's tougher. How do you know what to exclude? It's in a repository
somewhere? Add a filter to query this repo?
On Mar 25, 2010, at 4:07 PM, "Andriy Kolyadenko" <cryp...@mail.saturnfans.com
> wrote:
Ok, it would work for regions pruning. And what about actual rows
pruning inside single region? Do you have any ideas how to implement
it?
--- Stack wrote: ---
I think you need to make a custom splitter for your mapreduce job, one
that makes splits that align with the ranges you'd have your job run
over. A permutation on HBASE-2302 might work for you.
St.Ack
On Wed, Mar 17, 2010 at 1:32 PM, Andrey Kolyadenko
<cryp...@mailx.ru> wrote:
Hi all,
maybe somebody could give me advice in the following situation:
Currently HBase Scan interface provides ability to set up only
first and
last rows for MR scanning. Is it any way to get multiple ranges
into the map
input?
For example let's assume I have following table:
key value
1 v1
2 v2
3 v3
4 v4
5 v5
What I need is to get for example [1,2) and [4,5) ranges as input
for my Map
task. Actually I need this for the performance optimization.
Any advice?
Thanks.
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