When I have a large enough set of orgs (in my case 852,346) Clicking sites or Users and Orgs then the Orgs tab totally locks the system up.
When I changed this code:
Which is obviously artifically low, it works fine. This change was made in GroupLocalServiceImpl,
protected Collection<Group> doSearch(
long companyId, long classNameIds, long parentGroupId, String names,
String descriptions, LinkedHashMap<String, Object> params,
Please see attached stack traces for details as to where it dies, these are 60 traces over a minute.