[Building Sakai] Samigo Export of scores times out

Nguni Phakela nguni52 at gmail.com
Wed Aug 21 03:40:52 PDT 2013


Thank you very much Stephen,

We will try that and see what happens.

Cheers,
Nguni


On Wed, Aug 21, 2013 at 12:34 PM, Stephen Marquard <
stephen.marquard at uct.ac.za> wrote:

>  For very large sites (we saw this problem in a site with 4500 users),
> you may want to check your logs for this:
>
>
>
> Aug 12, 2013 11:31:49 AM org.apache.tomcat.util.http.Parameters
> processParameters
> INFO: More than the maximum number of request parameters (GET plus POST)
> for a single request ([10,000]) were detected. Any parameters beyond this
> limit have been ignored. To change this limit, set the maxParameterCount
> attribute on the Connector.
>
>
>
> In this case, it appears that the JSF request to move to the “Export” page
> in T&Q posts a very large set of parameters which is exceeding this limit.
> We worked around this for one specific site with a temporary change by
> adding maxParameterCount to the connector in conf/server.xml (you’d need to
> change this to the AJP connector on port 8009 or whatever):
>
>
>
> <Connector port="8444" protocol="HTTP/1.1" SSLEnabled="true"
>                maxThreads="150" scheme="https" secure="true"
>                maxParameterCount="150000"
>                clientAuth="false" sslProtocol="TLS" />
>
>
>
> This looks like some sort of weird JSF behaviour. With the above change,
> it worked OK (although the POST request is extremely large).
>
>
>
> Regards
>
> Stephen
>
>
>
> ---
>
> Stephen Marquard, Acting Director
>
> Centre for Educational Technology, University of Cape Town
> http://www.cet.uct.ac.za
> stephen.marquard at uct.ac.za
> Phone: +27-21-650-5037 Cell: +27-83-500-5290
>
>
>
> *From:* sakai-dev-bounces at collab.sakaiproject.org [mailto:
> sakai-dev-bounces at collab.sakaiproject.org] *On Behalf Of *Nguni Phakela
> *Sent:* 21 August 2013 10:08 AM
>
> *To:* Sakai Developers; Zaahirah Bhamjee
> *Subject:* [Building Sakai] Samigo Export of scores times out
>
>
>
> Hi All,
>
>
>
> We are attempting to export scores of Tests&Quizzes in a class of about
> 27 000 with quite a few questions. The request takes a long time and then
> times out. I have noted this JIRA,
>
>
>
> SAM-753<https://jira.sakaiproject.org/browse/SAM-753?page=com.atlassian.jira.plugin.system.issuetabpanels:changehistory-tabpanel>:
> Spreadsheet export is too slow with large classes
>
>
>
> where it looks like this was fixed but with a much smaller class (400).
> Has anyone else had this issue? Or is there another way we can export the
> data?
>
>
>
> Thanks in advance,
>
>
>
> --
> Nguni Phakela
>  ------------------------------
> UNIVERSITY OF CAPE TOWN
>
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-- 
Nguni Phakela
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