Rails - Aug 2012 - spatial_adapter and ruby_ldap

Hi,
I''m running rails 3.0.9 with activerecord 3.0.9 and have three database
connections in my rails application - LDAP connection, Oracle and Postgres 
with PostGIS. I have installed gems GeoRuby v 1.3.4, spatial_adapter v 
1.3.1, activerecord-oracle_enhanced-adapter v 1.4.0, ruby-ldap v 0.9.12 , 
pg v 0.14.0.

With both gems the spatial_adapter seem to work well which also is the case 
for the Oracle connection. Problem is if I run spatial_adapter together 
with ruby-ldap. The spatial adapter works but when I try to log in with 
LDAP it fails. The perror-command reports the success of bind towards LDAP, 
but hangs during search.

    users = []
    unless login.blank?
      filter = "(&(objectClass=#{user_object_class})" +
               "(#{user_login_attribute}=#{login}))"
      Comp::Directory::LdapServer.as_anonymous do | conn |
        puts conn.perror("bind")
        conn.search(userbase, LDAP::LDAP_SCOPE_SUBTREE, filter) do |e|
          users  << LdapUser.new(e.to_hash)
        end
        puts conn.perror("search")
      end
    end

Rails reports error "failed to allocate memory" but running free -m
-s1 in
another window does not indicate memory loss.

Running rails console with the following code works successfully:
conn = LDAP::Conn.new(''ldap.comp.org'', 389)
conn.bind(''uid=3,cn=users,dc=com,dc=org'', password) 
conn.perror("bind")
 res = conn.search("cn=systems,dc=comp,dc=org",
LDAP::LDAP_SCOPE_SUBTREE,
"(&(objectClass=groupOfUniqueNames)(uniqueMember=uid=3,cn=users,dc=comp,dc=org))",[''cn'',''description''])
conn.perror("search")
conn.unbind

The database.yml file

postgres_development:
  adapter: postgresql
  host: host1
  database: db1
  username: user1
  password: password1

development:
  adapter: oracle_enhanced
  database: db2
  username: user2
  password: password2
  timeout: 5000
  encoding: utf8

An example of a postgres model:

class PgLocation < ActiveRecord::Base
  establish_connection "postgres_"{RAILS_ENV}"
end

If I block the spatial_adapter in the Gemfile everything works well. I 
welcome any ideas.

Thanks!


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