Observed again today. It results in 100s of lines of errors and
stack-traces in Apache's error.log. It would be good to fix this in
packaging, but we can also help in MAAS itself, by retrying in
start_up.py every second or two, and handling the exception ourselves.
A recent example of the error, running on Trusty, using packages from
trunk r3243:
mod_wsgi (pid=28482): Target WSGI script '/usr/share/maas/wsgi.py' cannot be
loaded as Python module.
mod_wsgi (pid=28482): Exception occurred processing WSGI script
'/usr/share/maas/wsgi.py'.
Traceback (most recent call last):
File "/usr/share/maas/wsgi.py", line 32, in <module>
start_up()
File "/usr/lib/python2.7/dist-packages/maasserver/start_up.py", line 53, in
start_up
security.get_shared_secret()
File "/usr/lib/python2.7/dist-packages/provisioningserver/utils/twisted.py",
line 108, in wrapper
return func_in_reactor(*args, **kwargs).wait(timeout)
File "/usr/lib/python2.7/dist-packages/crochet/_eventloop.py", line 219, in
wait
result.raiseException()
File "/usr/lib/python2.7/dist-packages/twisted/python/threadpool.py", line
191, in _worker
result = context.call(ctx, function, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 118,
in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 81,
in callWithContext
return func(*args,**kw)
File "/usr/lib/python2.7/dist-packages/provisioningserver/utils/twisted.py",
line 143, in wrapper
return func(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/maasserver/utils/async.py", line 152,
in call_within_transaction
with transaction.atomic():
File "/usr/lib/python2.7/dist-packages/django/db/transaction.py", line 237,
in __enter__
if not connection.get_autocommit():
File "/usr/lib/python2.7/dist-packages/django/db/backends/__init__.py", line
324, in get_autocommit
self.ensure_connection()
File "/usr/lib/python2.7/dist-packages/django/db/backends/__init__.py", line
124, in ensure_connection
self.connect()
File "/usr/lib/python2.7/dist-packages/django/db/utils.py", line 99, in
__exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/lib/python2.7/dist-packages/django/db/backends/__init__.py", line
124, in ensure_connection
self.connect()
File "/usr/lib/python2.7/dist-packages/django/db/backends/__init__.py", line
112, in connect
self.connection = self.get_new_connection(conn_params)
File
"/usr/lib/python2.7/dist-packages/django/db/backends/postgresql_psycopg2/base.py",
line 116, in get_new_connection
return Database.connect(**conn_params)
File "/usr/lib/python2.7/dist-packages/psycopg2/__init__.py", line 179, in
connect
connection_factory=connection_factory, async=async)
OperationalError: FATAL: password authentication failed for user "maas"
FATAL: password authentication failed for user "maas"
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https://bugs.launchpad.net/bugs/1317958
Title:
Right after installation, /var/log/apache2/error.log contains a
stacktrace "FATAL: password authentication failed for user "maas"
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