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From Stack <st...@duboce.net>
Subject Re: Random I/O performance
Date Wed, 26 Oct 2011 20:18:01 GMT
On Wed, Oct 26, 2011 at 12:51 PM, Vladimir Rodionov
<vrodionov@carrieriq.com> wrote:
> We have a reporting tool which runs queries against Oracle DB, collects fact ids and
then
> queries HBase for these facts (one-by-one). This is single thread, simple Get op
>

Can you do concurrent gets?

Whats your hardware like.  How many disks per machine?

Is the table major compacted?

Are you hitting cache at all?

> It is slow, of course. 5 hours to retrieve 1M facts from HBase storage. Approx 55 rows
per sec
>

How big is your table?

St.Ack

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