I figured the same but forgot to factor in the HDFS part.

Best regards,
Yamini Joshi

On Sat, Nov 19, 2016 at 6:13 PM, Josh Elser <josh.el...@gmail.com> wrote:

> Hi Yamini,
>
> I'd just add one word of caution about knowing exactly what you're
> trying to measure. For example, running benchmarks over a cold system
> is not going to be representative of real cluster performance.
>
> To prevent caching from affecting time, you would need to do the following:
>
> * Restart Accumulo
> * Restart HDFS
> * Drop the operating system page cache (`echo 3 |
> /proc/sys/vm/drop_caches`)
>
> On Sat, Nov 19, 2016 at 12:34 PM, Yamini Joshi <yamini.1...@gmail.com>
> wrote:
> > Hello all
> >
> > I am trying to track performance of my queries on Accumulo.I need to
> clear
> > cache before every query in order to get clean time values. Could anyone
> > please tell me how could this be achieved?
> >
> > Best regards,
> > Yamini Joshi
>

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