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From Harold Lim <rold...@yahoo.com>
Subject Re: How to improve HBase throughput with YCSB?
Date Tue, 31 May 2011 05:07:06 GMT
Hi Ted,

I read all fields in the record. I was trying to get similar performance from the YCSB paper.

How do I know how much data is moving from the disk?

-Harold
--- On Tue, 5/31/11, Ted Dunning <tdunning@maprtech.com> wrote:

> From: Ted Dunning <tdunning@maprtech.com>
> Subject: Re: How to improve HBase throughput with YCSB?
> To: user@hbase.apache.org
> Date: Tuesday, May 31, 2011, 12:34 AM
> How large are the reads?
> 
> Have you tried this on a better instance type such as was
> suggested a bit
> ago?
> 
> How much data is moving from the disks?
> 
> 
> On Mon, May 30, 2011 at 8:46 PM, Harold Lim <rold_50@yahoo.com>
> wrote:
> 
> > Hi Ted,
> >
> > It's a pure random read operation.
> >
> >
> > -Harold
> > --- On Mon, 5/30/11, Ted Dunning <tdunning@maprtech.com>
> wrote:
> >
> > > From: Ted Dunning <tdunning@maprtech.com>
> > > Subject: Re: How to improve HBase throughput with
> YCSB?
> > > To: user@hbase.apache.org
> > > Date: Monday, May 30, 2011, 3:07 PM
> > > What kind of operations?
> > >
> > > On Mon, May 30, 2011 at 9:43 AM, Harold Lim
> <rold_50@yahoo.com>
> > > wrote:
> > >
> > > > Hi All,
> > > >
> > > > I have an HBase cluster on ec2 m1.large
> instance (10
> > > region servers). I'm
> > > > trying to run a read-only YCSB workload. It
> seems that
> > > I can't get a good
> > > > throughput. It saturates to around 600+
> operations per
> > > second.
> > > >
> > > > My dataset is around 200GB (~1k+ regions).
> Running
> > > major compaction and
> > > > also setting the handler count to 100 helped
> improve
> > > the performance a
> > > > little bit.
> > > >
> > > > Are there setting or configurations that I
> need to
> > > set?
> > > >
> > > > Thanks,
> > > > Harold
> > > >
> > > >
> > >
> >
> 

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