[Building Sakai] Maximum simultaneous users

[Claudia Roberta]

Thank for answers!

Please... I want to know the instructions to install the Sakai in Cluster
and what features should respect the tools to make it work well in the
cluster.

Tks,

Claudia

2011/8/19 Matthew Jones <jonespm at umich.edu>

> We're running across a 5 node cluster though, where each node only takes on
> 1/5 of the users. Putting all 9K users all on 1 system could cause
> connection unresponsiveness if existing tomcat connections were still busy
> when new requests came in, and couldn't complete fast enough to handle new
> requests. There also are issues with database pool exhaustion which can be
> improved by having multiple nodes.
>
> There's no limit in Sakai for sure, but tomcat has limits, as does a
> database, and you need to cluster both of these (or run it on faster
> hardware with higher limits) to handle more users.
>
> On Fri, Aug 19, 2011 at 12:15 PM, Sean DeMonner <demonner at umich.edu>wrote:
>
>> I'm not aware of any hard limit. We routinely run with 10,000+ concurrent
>> users in Production. The error you've mentioned sounds more like a malformed
>> request from your load testing software (missing or bad site ID, for
>> example).
>>
>> SMD.
>>
>>
>>
>> On Aug 19, 2011, at 9:40 AM, Claudia Roberta wrote:
>>
>> Hi guys,
>>
>> The Sakai has simultaneous user limit?
>>
>> We conducted a test with 9,000 concurrent users and the following error
>> message was displayed:
>> *“The site you requested is not available.” *
>>
>> Tks,
>>
>> Claudia _______________________________________________
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>>
>>
>>
>>
>> ====================================================
>> Sean DeMonner, Director, Teaching & Learning, ITS
>> 3350 Duderstadt Center, University of Michigan, (734) 615-9765
>>
>>
>>
>>
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>
>


-- 
Claudia Roberta
Intermídia - ICMC/USP - São Carlos, SP - Brasil
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