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Posted to user@hbase.apache.org by Daniel Leffel <da...@gmail.com> on 2008/07/03 04:19:21 UTC

In Memory Column Families

Hi all,
Quick question. I created a new column family (one created using IN_MEMORY).
I expected iterating with a scanner to be much faster, but alas, it seems to
operate at speeds comparable to regular column families. I have verified
that in_memory=true on the column family. Why isn't this substantially
faster?

Thanks!

Danny

Re: In Memory Column Families

Posted by Daniel Leffel <da...@gmail.com>.
Oh. That's would explain it. :-)

On Wed, Jul 2, 2008 at 7:25 PM, Jim Kellerman <ji...@powerset.com> wrote:

> Because in memory is not implemented?
>
> ---
> Jim Kellerman, Senior Engineer; Powerset
>
>
> > -----Original Message-----
> > From: Daniel Leffel [mailto:daniel.leffel@gmail.com]
> > Sent: Wednesday, July 02, 2008 7:19 PM
> > To: hbase-user@hadoop.apache.org
> > Subject: In Memory Column Families
> >
> > Hi all,
> > Quick question. I created a new column family (one created
> > using IN_MEMORY).
> > I expected iterating with a scanner to be much faster, but
> > alas, it seems to operate at speeds comparable to regular
> > column families. I have verified that in_memory=true on the
> > column family. Why isn't this substantially faster?
> >
> > Thanks!
> >
> > Danny
> >
> > No virus found in this incoming message.
> > Checked by AVG.
> > Version: 8.0.135 / Virus Database: 270.4.4/1531 - Release
> > Date: 7/2/2008 7:02 PM
> >
> No virus found in this outgoing message.
> Checked by AVG.
> Version: 8.0.135 / Virus Database: 270.4.4/1531 - Release Date: 7/2/2008
> 7:02 PM
>

RE: In Memory Column Families

Posted by Jim Kellerman <ji...@powerset.com>.
Because in memory is not implemented?

---
Jim Kellerman, Senior Engineer; Powerset


> -----Original Message-----
> From: Daniel Leffel [mailto:daniel.leffel@gmail.com]
> Sent: Wednesday, July 02, 2008 7:19 PM
> To: hbase-user@hadoop.apache.org
> Subject: In Memory Column Families
>
> Hi all,
> Quick question. I created a new column family (one created
> using IN_MEMORY).
> I expected iterating with a scanner to be much faster, but
> alas, it seems to operate at speeds comparable to regular
> column families. I have verified that in_memory=true on the
> column family. Why isn't this substantially faster?
>
> Thanks!
>
> Danny
>
> No virus found in this incoming message.
> Checked by AVG.
> Version: 8.0.135 / Virus Database: 270.4.4/1531 - Release
> Date: 7/2/2008 7:02 PM
>
No virus found in this outgoing message.
Checked by AVG.
Version: 8.0.135 / Virus Database: 270.4.4/1531 - Release Date: 7/2/2008 7:02 PM