I'm starting out to learn about AMQP and RabbitMQ.
To get myself going I have used a CLI tool, rabbitmqadmin, to successfully publish data to a RabbitMQ development install I have created upon my Mac OS X box. So far so good, I can publish messages, and watch them dequeue...
However when I come to try the exact same functionality upon the Heroku / CloudAMQP instance the rabbitmqadmin client seems to fall over.
This is the call:
rabbitmqadmin --host lemur.cloudamqp.com --vhost app4444444_heroku.com --user app4444444_heroku.com --password <withheld> publish routing_key=test payload="hello"
...and this is the output:
Traceback (most recent call last):
File "/usr/local/bin/rabbitmqadmin", line 828, in <module>
main()
File "/usr/local/bin/rabbitmqadmin", line 325, in main
method()
File "/usr/local/bin/rabbitmqadmin", line 428, in invoke_get
result = self.post(uri, json.dumps(upload))
File "/usr/local/bin/rabbitmqadmin", line 354, in post
return self.http("POST", path, body)
File "/usr/local/bin/rabbitmqadmin", line 377, in http
resp = conn.getresponse()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 1013, in getresponse
response.begin()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 402, in begin
version, status, reason = self._read_status()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 366, in _read_status
raise BadStatusLine(line)
httplib.BadStatusLine: ''
Any thoughts or ideas gratefully received!
Add --ssl to the command line. CloudAMQP's web ui is https only.
Related
I am trying to run my Django project and I encountered the following problem:
^C(venv) tests-MacBook-Pro-2:hearinsights morganlai$ python manage.py runserver
Performing system checks...
System check identified no issues (0 silenced).
Unhandled exception in thread started by <function wrapper at 0x103fc46e0>
Traceback (most recent call last):
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run
self.check_migrations()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 163, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/migrations/executor.py", line 20, in __init__
self.loader = MigrationLoader(self.connection)
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/migrations/loader.py", line 49, in __init__
self.build_graph()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/migrations/loader.py", line 176, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 65, in applied_migrations
self.ensure_schema()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 52, in ensure_schema
if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()):
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 231, in cursor
cursor = self.make_debug_cursor(self._cursor())
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 204, in _cursor
self.ensure_connection()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 199, in ensure_connection
self.connect()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 199, in ensure_connection
self.connect()
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 171, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/django/db/backends/postgresql/base.py", line 175, in get_new_connection
connection = Database.connect(**conn_params)
File "/Users/morganlai/Desktop/hearinsights-heap/venv/lib/python2.7/site-packages/psycopg2/__init__.py", line 164, in connect
conn = _connect(dsn, connection_factory=connection_factory, async=async)
django.db.utils.OperationalError: could not connect to server: Connection refused
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5432?
I have tried to start and restart the postgres database following the instructions here: How to start PostgreSQL server on Mac OS X?
After restart the server, the problem still occured:
tests-MacBook-Pro-2:hearinsights morganlai$ pg_ctl -D /usr/local/var/postgres stop -s -m fast
pg_ctl: PID file "/usr/local/var/postgres/postmaster.pid" does not exist
Is server running?
tests-MacBook-Pro-2:hearinsights morganlai$ pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
server starting
I would encounter this problem every single time when I restarted my mac and the solution provided by that article usually worked in the past. Since it is not working this time, I wonder it might be some other problems.
Try to uninstall the current postgres files. And install it from scratch using homebrew:
https://launchschool.com/blog/how-to-install-postgresql-on-a-mac
This might fix your issue.
I have a Flask app running on nginx + uWSGI.
On my local server (non-nginx), I get a nice stack trace + error reporting for exceptions.
Like this:
$ python run.py
Traceback (most recent call last):
File "run.py", line 1, in <module>
from myappname import app
File "/home/me/myappname/myappname/__init__.py", line 27, in <module>
file_handler.setLevel(logging.debug)
File "/usr/lib/python2.7/logging/__init__.py", line 710, in setLevel
self.level = _checkLevel(level)
File "/usr/lib/python2.7/logging/__init__.py", line 190, in _checkLevel
raise TypeError("Level not an integer or a valid string: %r" % level)
On nginx, there is next to no logging whatsoever (in /var/log/nginx/error.log).
This post suggests adding app.logger.exception('Failed') to my script, which didn't help.
How do I enable this sort of logging for debugging purposes?
Nginx will capture your app's console output, but you must make the app recover from exceptions. Else, you'll only get 500 or 400 errors from Nginx.
Try running the app off Nginx until it seems stable.
Use the logging module to capture app status information to your own log file. This strategy will be useful in the long run.
Ok, I know this error has come up before, and yes, I'm using python 2.7.3 on mac osx 10.7.5 (also same error using mavericks), not the latest or best. But (of course) it's legacy code -- and it worked yesterday, and it doesn't work today.
What changed? Well, I did switch from RCN to Comcast as ISP provider, and also moved cities. I don't see any previous posts about those specific changes, and I've tried everything I can think of, over many hours.
I can reproduce the error with this:
import urllib2
urllib2.urlopen('http://ichart.yahoo.com/table.csv?s=ABT&a=11&b=27&c=2013&d=0&e=&(e)s&f=2013')
And the error is:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 126, in urlopen
return _opener.open(url, data, timeout)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 400, in open
response = self._open(req, data)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 418, in _open
'_open', req)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 378, in _call_chain
result = func(*args)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1207, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1177, in do_open
raise URLError(err)
urllib2.URLError: <urlopen error [Errno 61] Connection refused>
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1177, in do_open
raise URLError(err)
urllib2.URLError: urlopen error [Errno 61] Connection refused
If I put that url into a browser, it says cannot connect. So it may not be a python issue. I doubt the website has been down for as long as I've tried to make it work. I've checked the proxies, and as far as I can tell, I'm not using a proxy.
Any ideas out there?
In python, I am using the following:
context = zmq.Context()
socket = context.socket(zmq.PUSH)
socket.bind_to_random_port('tcp://*', min_port=6001, max_port=6004, max_tries=100)
port_selected = socket.???????
How do I know what port is chosen? I will have a look up table in redis for the workers to read.
I am using a push pull model. I need to let workers know what ports to connect to.
I have to do this because I am using the gevent loop in uwsgi and specifying a a plain blind thows and error becuase of a fork. If a use bind_to_random_port then a port is seleced, I just dont know which.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/gevent-1.0b2-py2.7-linux-x86_64.egg/gevent/greenlet.py",
line 328, in run
result = self._run(*self.args, **self.kwargs)
File "/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbUwsgiPixelServer/uwsgiPixelServer.py",
line 43, in sendthis
socket.send(push)
File "/usr/local/lib/python2.7/dist-packages/zmq/green/core.py",
line 173, in send
self._wait_write()
File "/usr/local/lib/python2.7/dist-packages/zmq/green/core.py",
line 108, in _wait_write
assert self.__writable.ready(), "Only one greenlet can be waiting
on this event"
AssertionError: Only one greenlet can be waiting on this event
<Greenlet at 0x2d41370: sendthis('2012-07-02 04:05:15')> failed with
AssertionError
port_selected = socket.bind_to_random_port('tcp://*', min_port=6001, max_port=6004, max_tries=100)
Python 2.6.2 / Django 1.0.2 on Win 2003 Standard IIS 6.
IIs is running two django sites with the following directory structure:
root/http/WEBSITE1
root/http/WEBSITE2
Both sites have their own application pools; each site has it's own pyISAPIe.dll instance.
WEBSITE1 is accessible (serving test django page). However, the browser produces the following for WEBSITE2:
Internal Server Error
An error occurred processing this request.
Request handler failed
Traceback (most recent call last):
File "D:\Python26\lib\site-packages\Http\Isapi.py", line 67, in Request
return RunWSGI(Handler, Base=Base)
File "D:\Python26\lib\site-packages\Http\WSGI.py", line 155, in RunWSGI
Result = Application(Environ, StartResponse)
File "D:\Python26\lib\site-packages\django\core\handlers\wsgi.py", line 241, in call
response = self.get_response(request)
File "D:\Python26\lib\site-packages\django\core\handlers\base.py", line 122, in get_response
return self.handle_uncaught_exception(request, resolver, sys.exc_info())
File "D:\Python26\lib\site-packages\django\core\handlers\base.py", line 166, in handle_uncaught_exception
return callback(request, **param_dict)
File "D:\Python26\lib\site-packages\django\views\defaults.py", line 23, in server_error
t = loader.get_template(template_name) # You need to create a 500.html template.
File "D:\Python26\lib\site-packages\django\template\loader.py", line 81, in get_template
source, origin = find_template_source(template_name)
File "D:\Python26\lib\site-packages\django\template\loader.py", line 74, in find_template_source
raise TemplateDoesNotExist, name
django.template.TemplateDoesNotExist: 500.html
It seems to me that "Isapi.py" located in root/pytho26/Lib/site-packages/Http has everything to do with this because of the "os.environ["DJANGO_SETTINGS_MODULE"] = "WEBSITE1.settings"
How can I modify this file or position it so that both sites run independently.
For anyone interested, the solution lies here
http://groups.google.com/group/pyisapie/browse_thread/thread/b67e861c85e1b26a
Follow option #3 to the letter and you will be able to run multiple IIS sites.