Thank you very much Tim!

This is exactly the kind of practical knowledge we are gathering about this
particular subject.





Saludos cordiales,

Hernán Carvajal
Director de Tecnología, Prodigio Consultores
Oficina: +56 2 26965764 / Celular: +56 9 88370295
www.prodigioconsultores.com


2017-01-19 14:53 GMT-03:00 Tim Donohue <[email protected]>:

> Hi Hernán,
>
> I don't have any official results to point to on concurrent user testing.
> But, I will note that it is highly dependent on the amount of memory and
> database connections you provide to your DSpace site.
>
> The number of simultaneous database connections allowed by your DSpace is
> specified in your "db.maxconnection" setting in dspace.cfg.  This should
> roughly correspond to the maximum number of database connections configured
> in your database layer (in PostgreSQL this is the "max_connections" setting
> in your postgresql.conf, see https://wiki.postgresql.org/
> wiki/Tuning_Your_PostgreSQL_Server).  Keep in mind, DSpace uses some
> database pooling by default, so you can often achieve more concurrent users
> than connections (though too many more and you may start to see the site
> slowdown or start to hit pooling errors).
>
> I've done some basic concurrent tests on our end for small sites, and have
> found very small site (1-2GB of memory, db.maxconnections=75-100), you can
> support around 100-150 concurrent users (with decent performance...once you
> hit 150 or so, the site starts to slow down a bit).
>
> So, that's a lower level data point. I don't have tests for higher
> performance, highly active sites, but hopefully others could share their
> production settings and what sort of concurrent users they've found they
> are able to support.
>
> Tim
>
> On Wed, Jan 18, 2017 at 7:48 AM Hernan Carvajal <hcarvajal@
> prodigioconsultores.com> wrote:
>
>> Hi.
>>
>> Can anyone share his experience, studies or tests results related to the
>> amount of concurrent users of DSpace vs server hardware capabilities?
>>
>>
>> Saludos cordiales,
>>
>> Hernán Carvajal
>> Director de Tecnología, Prodigio Consultores
>> Oficina: +56 2 26965764 <+56%202%202696%205764> / Celular: +56 9 88370295
>> <+56%209%208837%200295>
>> www.prodigioconsultores.com
>>
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> --
>
> Tim Donohue
> Technical Lead for DSpace & DSpaceDirect
> DuraSpace.org | DSpace.org | DSpaceDirect.org
>
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