password authentication failed

[Gary Roach]

On 07/15/2015 11:25 AM, Chris Angelico wrote:
> On Thu, Jul 16, 2015 at 3:13 AM, Gary Roach <gary719_list1 at verizon.net> wrote:
>> Every time I try to do a python manage.py migrate I get:
>> django.db.utils.OperationalError: FATAL:  password
>> authentication failed for user "postgres"
>> FATAL:  password authentication failed for user "postgres"
>>
>>
>>          DATABASES = {
>>              'default': {
>>                  'USER': 'postgres',
>>                  'PASSWORD': 'xxxxxx', # A valid debian pw
>>              }
>>          }
> PostgreSQL users are not the same as Unix users, and their passwords
> aren't necessarily the same. I would recommend *not* using the
> postgres user, which is the database superuser; instead, create a new
> user explicitly. On most Debian PostgreSQL installations, you should
> be able to invoke 'psql' while running as user 'postgres', either by
> su'ing to postgres or with sudo, for instance:
>
> $ sudo sudo -u postgres psql
>
> That should get you into a database CLI as superuser. Your prompt
> should look like this:
>
> postgres=#
>
> You should then be able to create a regular user, and grant
> appropriate permissions:
>
> postgres=# create user archives password 'traded-links-linguistics-informal';
> CREATE ROLE
> postgres=# grant all on database archivedb to archives;
> GRANT
>
> (Make sure you have the semicolons at the ends, otherwise you'll think
> it's done nothing. It's actually waiting for you to type more lines
> for the same command, but the prompt difference is so subtle that it's
> easy to think it's silently ignoring you.)
>
> Then you should be able to use user name 'archives' and password
> 'traded-links-linguistics-informal' (of course, you don't want to use
> that; that's just what my password generating parrot came up with)
> instead of 'postgres' and whatever the Unix password was.
>
> Incidentally, I usually don't have any password on my postgres Unix
> user, nor on the corresponding database users. Safer to use sudo, eg
> to root and then down to postgres, as shown above.
>
> ChrisA
I really appreciate the help Chris. I created a user archive with 
password  'xxxxxx' and changed the settings.py file accordingly. When I 
tried  python manage.py migrate I got the following error with it's 
traceback:

(archivedb)root at supercrunch:~/archivedb# python manage.py migrate
Traceback (most recent call last):
   File "manage.py", line 10, in <module>
     execute_from_command_line(sys.argv)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/core/management/__init__.py", 
line 338, in execute_from_command_line
     utility.execute()
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/core/management/__init__.py", 
line 330, in execute
     self.fetch_command(subcommand).run_from_argv(self.argv)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/core/management/base.py", 
line 390, in run_from_argv
     self.execute(*args, **cmd_options)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/core/management/base.py", 
line 441, in execute
     output = self.handle(*args, **options)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/core/management/commands/migrate.py", 
line 93, in handle
     executor = MigrationExecutor(connection, 
self.migration_progress_callback)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/migrations/executor.py", 
line 19, in __init__
     self.loader = MigrationLoader(self.connection)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/migrations/loader.py", 
line 47, in __init__
     self.build_graph()
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/migrations/loader.py", 
line 180, in build_graph
     self.applied_migrations = recorder.applied_migrations()
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/migrations/recorder.py", 
line 60, in applied_migrations
     return set(tuple(x) for x in self.migration_qs.values_list("app", 
"name"))
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/models/query.py", 
line 162, in __iter__
     self._fetch_all()
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/models/query.py", 
line 965, in _fetch_all
     self._result_cache = list(self.iterator())
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/models/query.py", 
line 1220, in iterator
     for row in compiler.results_iter():
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", 
line 783, in results_iter
     results = self.execute_sql(MULTI)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", 
line 829, in execute_sql
     cursor.execute(sql, params)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/backends/utils.py", 
line 79, in execute
     return super(CursorDebugWrapper, self).execute(sql, params)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/backends/utils.py", 
line 64, in execute
     return self.cursor.execute(sql, params)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/utils.py", 
line 97, in __exit__
     six.reraise(dj_exc_type, dj_exc_value, traceback)
   File 
"/root/.virtualenvs/archivedb/local/lib/python2.7/site-packages/django/db/backends/utils.py", 
line 64, in execute
     return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: permission denied for relation 
django_migrations

(archivedb)root at supercrunch:~/archivedb#

I'm not at all sure what this means. Any help will be sincerely appreciated.

Gary R.