This query takes a lot of time. It's used during project registration to enforce a max number of projects, but it scans every single project to do its counting. https://groups.google.com/d/msg/mongodb-user/8aFNkJbtDF0/TILIz_Mp8tQJ It's not necessary to do this query when the nbhd has no max limit.
"query" : { "count" : "project", "fields" : null, "query" : { "deleted" : false, "is_nbhd_project" : false, "neighborhood_id" : ObjectId("4be2faf8898e33156f00003e") } },
allura:db/5091
Tests in allura/tests/functional/test_neighborhood.py should cover it