I have seen this thread only now...
the issue is related to the right awareness feature introduced in discovery and affect both the search and the browse system (when solrbrowsedao are used, optionally in 3.x, by default in 4.0). The group composition doesn't really matter, the issue here is that a single user is included in several group that mean that the solr query will include a filter to limit the results to only items that are visible by group1, group2, .... groupN. If the number of group is hight you can reach the HTTP header limit already managed in this thread or a tooManyClause Exception in solr, that can be "solved" incrementing this parameter.
https://github.com/DSpace/DSpace/blob/master/dspace/solr/search/conf/solrconfig.xml#L474
When the number is to large you could also consider to disable the awareness right feature, commenting this line
https://github.com/DSpace/DSpace/blob/master/dspace/config/spring/api/discovery.xml#L25
Hope this help,
Andrea

Il 27/01/2014 13.58, Hilton Gibson ha scritto:

On 27 January 2014 12:48, Hilton Gibson <hilton.gib...@gmail.com <mailto:hilton.gib...@gmail.com>> wrote:

    Going to update this wiki doc quickly and then ask one of the
    group to test with a native login.


The test so far are good.

Thx Helix for the quick fix.

Cheers

hg


*Hilton Gibson*
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