[Building Sakai] NeoChat for production use?

Alexandre Ballesté alexandre.balleste at udl.cat
Tue Feb 19 04:33:32 PST 2013


Seeing these numbers I believe that it will work for us. Our big sites 
are not highly concurrent used.

Alex.

On 02/19/2013 01:20 PM, Adrian Fish wrote:
> How many concurrent users? Each logged in user on a neochat enabled 
> Sakai will be polling every 5 seconds. The requests don't take long, 
> but still. If you expect 500 concurrent users you should probably 
> cluster with 250 on each of two app nodes. I don't see any problem 
> with those load levels.
>
> The only way to decrease the hit on the tomcats would be to start 
> using websockets so the polling can be dropped. I don't think enough 
> people are using websocket enabled browers yet for that to be 
> feasible. You could increase the poll interval but this reduces the 
> immediacy of the chat experience, thus defeating the object really.
>
> Adrian.
>
>
> On 19 February 2013 12:08, Alexandre Ballesté 
> <alexandre.balleste at udl.cat <mailto:alexandre.balleste at udl.cat>> wrote:
>
>     Did anybody try with big site? 5000+ users.
>
>     Thanks!
>
>     On 02/19/2013 01:05 PM, Juan José Meroño Sánchez wrote:
>     > I did some performance testing on it for 2.9.0 and I didn't find
>     issues,
>     > I think the confluence page needs qualifying too, but not completely
>     > remove the warning.
>     > This feature (neochat) increases the number of requests sent to
>     sakai,
>     > so this needs a warning, but not a fatal message that will scare
>     people.
>     > Its also important to have people using the feature.
>     >
>     > Cheers.
>     >
>     > El 19/02/2013 11:50, Pablo San Roman Bengoetxea escribió:
>     >> Hi all,
>     >>
>     >> We are interested in NeoChat but we have seen in the document
>     of new
>     >> funcionalities (
>     >>
>     https://confluence.sakaiproject.org/display/DOC/Sakai+CLE+2.9+Release+Notes+-+What%27s+New
>     >> ) that it is not recommended for production, only for small scale
>     >> exploration. We are not sure if this state continues so we
>     would like to
>     >> know if somebody is currently  using NeoChat in production.
>     >>
>     >> thanks,
>     >> Regards.
>     >>
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>     --
>     Alexandre Ballesté Crevillén  alexandre.balleste at udl.cat
>     <http://udl.cat>
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