Greetings Jon,

A quick performance snapshot: I believe with our cluster of 18 nodes (8
cores, 8 GB RAM, 2 x 500 GB drives per node), we were inserting rows of
about 5-10kb at the rate of 180,000 /second. That's on a completely untuned
cluster. You could see much better performance with proper tweaking and LZO
compression.



On Tue, Sep 22, 2009 at 10:05 AM, Jonathan Holloway <
jonathan.hollo...@gmail.com> wrote:

> Hi all,
>
> I was looking at the HBase Goes Realtime presentation yesterday and came
> across these numbers:
>
> Tall Table 1 million rows with a single column
> * Insert - 0.24 ms per row
> * Read - 1.42ms per row
> * Full Scan - 11 seconds
>
> Wide Table 1000 Rows with 20,000 columns
> * Insert - 312 ms per row
> * Random Read - 121 ms/row
> * Full Scan - 146 seconds
>
> Fat Table 1000 Rows with 10 columns 1MB value
> * Insert - 68 seconds
> * Random Read - 56.92 ms/row
> * Full Scan - 35 seconds
>
> I'm interested in understanding whether there are any up to date stats for
> performance, especially with
> regards to random reads on tables with approx 10 columns and n million
> rows.  I'm looking into running
> a performance benchmark eventually, I just wondered whether anybody had any
> stats to share?
>
> Many thanks,
> Jon.
>



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