hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Dalia Sobhy <dalia.mohso...@hotmail.com>
Subject RE: HTablePool
Date Sat, 17 Nov 2012 21:48:28 GMT


Dear Mohamed,

I already read Hbase book, but because it is providing alot of functions I got confused !!

So forgive me I need to ask another question..

Does Scan returns all rows and Get only one row, am I right?

Whats better using Coprocessors or Filters for aggregate functions, in case of performance
wise ?


> From: dontariq@gmail.com
> Date: Sun, 18 Nov 2012 02:47:15 +0530
> Subject: Re: HTablePool
> To: user@hbase.apache.org
> 
> All Scan operations are identical to Get with the exception of
> instantiation. Get works on a single roe while in Scan rather than
> specifying a single row, an optional startRow and stopRow may be defined
> with Scan. If rows are not specified, all the rows are iterated. I would
> suggest you to go through the official book at -
> http://hbase.apache.org/book.html
> 
> Regards,
>     Mohammad Tariq
> 
> 
> 
> On Sun, Nov 18, 2012 at 2:41 AM, Stack <stack@duboce.net> wrote:
> 
> > On Sat, Nov 17, 2012 at 12:38 PM, Dalia Sobhy
> > <dalia.mohsobhy@hotmail.com> wrote:
> > >
> > > Thanks Stack :D
> > >
> > > Another Question: Whats the difference between Scan and Get??
> > >
> >
> > What do you think?
> > St.Ack
> >
 		 	   		  
Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message