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When using a postgresql DB for Hue, you might have encoutered

[root@hue ~]# cd /usr/lib/hue 
[root@hue hue]# source ./build/env/bin/activate 
(env)[root@hue hue]# hue syncdb
Traceback (most recent call last):
  File "/usr/lib/hue/build/env/bin/hue", line 9, in <module>
    load_entry_point('desktop==2.6.1', 'console_scripts', 'hue')()
  File "/usr/lib/hue/desktop/core/src/desktop/manage_entry.py", line 60, in entry
    execute_manager(settings)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/core/management/__init__.py", line 261, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/core/management/__init__.py", line 67, in load_command_class
    module = import_module('%s.management.commands.%s' % (app_name, name))
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/South-0.8.2-py2.6.egg/south/management/commands/__init__.py", line 10, in <module>
    import django.template.loaders.app_directories
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/template/loaders/app_directories.py", line 21, in <module>
    mod = import_module(app)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/contrib/admin/__init__.py", line 1, in <module>
    from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/contrib/admin/helpers.py", line 1, in <module>
    from django import forms
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/forms/__init__.py", line 17, in <module>
    from models import *
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/forms/models.py", line 6, in <module>
    from django.db import connections
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/db/__init__.py", line 77, in <module>
    connection = connections[DEFAULT_DB_ALIAS]
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/db/utils.py", line 91, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/db/utils.py", line 32, in load_backend
    return import_module('.base', backend_name)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/db/backends/postgresql_psycopg2/base.py", line 24, in <module>
    raise ImproperlyConfigured("Error loading psycopg2 module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: No module named psycopg2

Download the psycopg2 module https://pypi.python.org/packages/source/p/psycopg2/psycopg2-2.6.1.tar.gz#md5=842b44f8c95517ed5b79208...

Then install it with easy_install

(env)[root@hue hue]# easy_install /root/psycopg2-2.6.1.tar.gz
Processing psycopg2-2.6.1.tar.gz
Running psycopg2-2.6.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-IDKkmV/psycopg2-2.6.1/egg-dist-tmp-CR0nZv
zip_safe flag not set; analyzing archive contents...
psycopg2.tests.test_types_basic: module references __file__
psycopg2.tests.test_module: module references __file__
Adding psycopg2 2.6.1 to easy-install.pth file

Installed /usr/lib/hue/build/env/lib/python2.6/site-packages/psycopg2-2.6.1-py2.6-linux-x86_64.egg
Processing dependencies for psycopg2==2.6.1
Finished processing dependencies for psycopg2==2.6.1


done ! (You might however consider Ambari views)

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