On 02/22/2015 11:02 PM, VENKTESH GUTTEDAR wrote:
Hello,
i have Postgresql 9.3.5 installed and django 1.7 and till now it
was working fine.
But now i am getting the following error while starting the server
to run my app :
Unhandled exception in thread started by <function
check_errors.<locals>.wrapper at 0xb2da8074>
Traceback (most recent call last):
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 133, in ensure_connection
self.connect()
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 122, in connect
self.connection = self.get_new_connection(conn_params)
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/postgresql_psycopg2/base.py",
line 134, in get_new_connection
return Database.connect(**conn_params)
File "/usr/local/lib/python3.4/dist-packages/psycopg2/__init__.py",
line 164, in connect
conn = _connect(dsn, connection_factory=connection_factory,
async=async)
psycopg2.OperationalError: could not translate host name "localhost" to
address: Name or service not known
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File
"/usr/local/lib/python3.4/dist-packages/django/utils/autoreload.py",
line 222, in wrapper
fn(*args, **kwargs)
File
"/usr/local/lib/python3.4/dist-packages/django/core/management/commands/runserver.py",
line 107, in inner_run
self.check_migrations()
File
"/usr/local/lib/python3.4/dist-packages/django/core/management/commands/runserver.py",
line 159, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File
"/usr/local/lib/python3.4/dist-packages/django/db/migrations/executor.py",
line 17, in __init__
self.loader = MigrationLoader(self.connection)
File
"/usr/local/lib/python3.4/dist-packages/django/db/migrations/loader.py",
line 48, in __init__
self.build_graph()
File
"/usr/local/lib/python3.4/dist-packages/django/db/migrations/loader.py",
line 183, in build_graph
self.applied_migrations = recorder.applied_migrations()
File
"/usr/local/lib/python3.4/dist-packages/django/db/migrations/recorder.py",
line 59, in applied_migrations
self.ensure_schema()
File
"/usr/local/lib/python3.4/dist-packages/django/db/migrations/recorder.py",
line 49, in ensure_schema
if self.Migration._meta.db_table in
self.connection.introspection.get_table_list(self.connection.cursor()):
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 165, in cursor
cursor = self.make_debug_cursor(self._cursor())
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 138, in _cursor
self.ensure_connection()
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 133, in ensure_connection
self.connect()
File "/usr/local/lib/python3.4/dist-packages/django/db/utils.py",
line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/local/lib/python3.4/dist-packages/django/utils/six.py",
line 658, in reraise
raise value.with_traceback(tb)
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 133, in ensure_connection
self.connect()
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/__init__.py",
line 122, in connect
self.connection = self.get_new_connection(conn_params)
File
"/usr/local/lib/python3.4/dist-packages/django/db/backends/postgresql_psycopg2/base.py",
line 134, in get_new_connection
return Database.connect(**conn_params)
File "/usr/local/lib/python3.4/dist-packages/psycopg2/__init__.py",
line 164, in connect
conn = _connect(dsn, connection_factory=connection_factory,
async=async)
django.db.utils.OperationalError: could not translate host name
"localhost" to address: Name or service not known
can anyone tell me what is the reason for this error.?
What OS and what version?
Would be nice to see the DSN you are using?
Though I suspect is the issue is that localhost is not defined in your
hosts file.
Have you tried using 127.0.0.1 instead of localhost to test?
--
Regards :
Venktesh Guttedar.
--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx
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