When I start gunicorn it prints this:
[2018-11-09 16:30:20 +0000] [16] [INFO] Starting gunicorn 19.9.0
[2018-11-09 16:30:20 +0000] [16] [INFO] Listening at: http://0.0.0.0:8000 (16)
[2018-11-09 16:30:20 +0000] [16] [INFO] Using worker: sync
[2018-11-09 16:30:20 +0000] [19] [INFO] Booting worker with pid: 19
Setting up a logger for the gunicorn package (propagating) doesn't seem to affect it. What module is the one I should configure to modify these messages?
Those messages are output by the Arbiter class in gunicorn/arbiter.py, but it may be that any configuring you try and do is overridden by gunicorn's machinery, or not applicable - for example, trying to set up logging in a worker won't affect what the arbiter does, as they are separate processes. So you may need to invoke the arbiter in a special way (i.e. not just through running a canned gunicorn script) if you want to affect its logging, or amend the gunicorn configuration used for the arbiter.
Related
I am trying to run django 3.2.16 with gunicorn, I get this output in console:
[2023-01-15 23:45:39 +0100] [210935] [INFO] Starting gunicorn 20.1.0
[2023-01-15 23:45:39 +0100] [210935] [DEBUG] Arbiter booted
[2023-01-15 23:45:39 +0100] [210935] [INFO] Listening at: http://0.0.0.0:8000 (210935)
[2023-01-15 23:45:39 +0100] [210935] [INFO] Using worker: sync
[2023-01-15 23:45:39 +0100] [210936] [INFO] Booting worker with pid: 210936
[2023-01-15 23:45:39 +0100] [210935] [DEBUG] 1 workers
Everything looks like working, but when I go to localhost, I get Internal Server Error.
It kinda behaves like if I had DEBUG = False, but I have DEBUG = True and there is also nothing in console. Django setup finishes and I also verify, that settings.DEBUG is indded true:
My wsgi.py file:
application = get_wsgi_application()
print(settings.DEBUG)
And of course runserver works fine.
What else could that be? How to get some kind of error output? I tried capture-out and all the log files and levels that gunicorn provides but got nothing useful from the console.
The reason was this line in my django log settings:
"disable_existing_loggers": True,
Setting this to False fixed my problem.
I'm trying to start the airflow webserver with an existing application and the latest version (2.2.2). The executor is set as LocalExecutor, the datastore is Postgres, Python v3.9. Upon start up, it launches 4 workers which promptly die. It then spins its wheels continually trying to restart them.
Here's an example of the messages showing a worker starting and dying with signal 11 (segmentation violation). This is all within a second of starting.
Using worker: sync
[2021-11-30 17:29:31 -0500] [12529] [INFO] Booting worker with pid: 12529
[2021-11-30 17:29:31 -0500] [12530] [INFO] Booting worker with pid: 12530
[2021-11-30 17:29:31 -0500] [12531] [INFO] Booting worker with pid: 12531
[2021-11-30 17:29:31 -0500] [12532] [INFO] Booting worker with pid: 12532
Running the Gunicorn Server with:
Workers: 4 sync
Host: 0.0.0.0:8080
Timeout: 120
settings.prepare_engine_args(): Using pool settings. pool_size=5, max_overflow=10, pool_recycle=1800, pid=12529
[WARNING] Worker with pid 12529 was terminated due to signal 11
Any suggestions on how to debug these workers?
I gave up on trying to run Airflow directly on my M1 Mac. I suspect it has something to do with the emulator for the M1 chip, but don't know for sure. I fell back to running Airflow in Docker. It takes a very long time to start, but does run OK that way.
I have a Python + FastAPI restful API project running the free tier of Oracle Cloud VM instance.
I use Gunicorn to serve the api and also installed Nginx just in case it's needed.
I have tested my running project with
curl http://localhost:8000
and I can see my API response.
Now my question is : how can I expose this api endpoint outside on the Internet?
Update 1
I started my Python API project with this command:
gunicorn -w 4 -k uvicorn.workers.UvicornWorker main:app --timeout 1200 -b 0.0.0.0
I saw the messages below:
[2021-05-23 00:40:28 +0000] [3850] [INFO] Starting gunicorn 20.0.2
[2021-05-23 00:40:28 +0000] [3850] [INFO] Listening at: http://0.0.0.0:8000 (3850)
[2021-05-23 00:40:28 +0000] [3850] [INFO] Using worker: uvicorn.workers.UvicornWorker
[2021-05-23 00:40:28 +0000] [3853] [INFO] Booting worker with pid: 3853
[2021-05-23 00:40:28 +0000] [3854] [INFO] Booting worker with pid: 3854
[2021-05-23 00:40:28 +0000] [3857] [INFO] Booting worker with pid: 3857
[2021-05-23 00:40:28 +0000] [3858] [INFO] Booting worker with pid: 3858
[2021-05-23 00:42:04 +0000] [3853] [INFO] Started server process [3853]
[2021-05-23 00:42:04 +0000] [3857] [INFO] Started server process [3857]
[2021-05-23 00:42:04 +0000] [3857] [INFO] Waiting for application startup.
[2021-05-23 00:42:04 +0000] [3858] [INFO] Started server process [3858]
[2021-05-23 00:42:04 +0000] [3858] [INFO] Waiting for application startup.
[2021-05-23 00:42:04 +0000] [3858] [INFO] Application startup complete.
[2021-05-23 00:42:04 +0000] [3853] [INFO] Waiting for application startup.
[2021-05-23 00:42:04 +0000] [3853] [INFO] Application startup complete.
[2021-05-23 00:42:04 +0000] [3857] [INFO] Application startup complete.
[2021-05-23 00:42:04 +0000] [3854] [INFO] Started server process [3854]
[2021-05-23 00:42:04 +0000] [3854] [INFO] Waiting for application startup.
[2021-05-23 00:42:04 +0000] [3854] [INFO] Application startup complete.
Then I copied the IP address from the Compute >> Instances >> Instance Details panel and accessed it from my Chrome. Straightaway, it shows me
Unable to connect
Also read through several articles about using Nginx and tried without any luck.
Update 2
Using curl to access the website from my local machine
$ curl http://168.138.12.192:8000/
curl: (7) Failed to connect to 168.138.12.192 port 8000: No route to host
However, when access the IP directly using curl, I was able to get the default Nginx website.
$ curl http://168.138.12.192
Finally, I found out what I missed:
sudo iptables -I INPUT -p tcp -s 0.0.0.0/0 --dport 8000 -j ACCEPT
I have to run this command to open the port 8000(yes, my website is using port 8000).
I thought I have added Ingress Rule to accept tcp 8000, but it turns out that I still need to run the aforementioned command.
I do not quite understand why I need to do it, but it solves the problem.
Did you changed the default html page under /var/www/html directory? If not try customize the html page as per your requirement and see if it works for you or else it would just show the default nginx page when accessed from browser using public IP.
Adding to this, Also check if the port 8000 is allowed in the security list and OS firewall. The default port for http request is 80, you need to change the default port from 80 to 8000 in the config file to make this work. refer this page this might be useful How to Change Apache HTTP Port in Linux.
I've a simple falcon app straight from the getting started example
import falcon
import json
class QuoteResource:
def on_get(self, req, resp):
"""Handles GET requests"""
quote = {
'quote': 'I\'ve always been more interested in the future than in the past.',
'author': 'Grace Hopper'
}
resp.body = json.dumps(quote)
api = falcon.API()
api.add_route('/quote', QuoteResource())
The code is in a file called manage.py
When I try to run gunicorn manage:app
This is what I get
2017-06-04 20:47:18 -0700] [2370] [INFO] Starting gunicorn 19.7.1
[2017-06-04 20:47:18 -0700] [2370] [INFO] Listening at: http://127.0.0.1:8000 (2370)
[2017-06-04 20:47:18 -0700] [2370] [INFO] Using worker: sync
[2017-06-04 20:47:18 -0700] [2373] [INFO] Booting worker with pid: 2373
Failed to find application: 'manage'
[2017-06-04 20:47:18 -0700] [2373] [INFO] Worker exiting (pid: 2373)
[2017-06-04 20:47:18 -0700] [2370] [INFO] Shutting down: Master
[2017-06-04 20:47:18 -0700] [2370] [INFO] Reason: App failed to load.
What am I doing wrong here?
Not sure whether it is a typo or because of misunderstanding but you should start the application this way:
gunicorn manage:api
But not gunicorn manage:app
The manage:api option tells to invoke the api object defined in your manage.py module. Otherwise you need to rename api variable to app in your code.
Then you can check that application is running by accessing the following url:
http://localhost:8000/quote
By default the port should 8000 but you need to check it when gunicorn starts. It should be something like this:
[INFO] Listening at: http://127.0.0.1:8000
I'm trying to setup new relic, I have followed the instructions they give however the last command give me this error.
newrelic-admin run-program gunicorn wsgi:application
why?
2013-04-16 10:39:30 [4175] [INFO] Starting gunicorn 0.14.5
2013-04-16 10:39:30 [4175] [INFO] Listening at: http://127.0.0.1:8000 (4175)
2013-04-16 10:39:30 [4175] [INFO] Using worker: sync
2013-04-16 10:39:30 [4178] [INFO] Booting worker with pid: 4178
2013-04-16 10:39:30 [4178] [INFO] Worker exiting (pid: 4178)
2013-04-16 10:39:31 [4175] [INFO] Shutting down: Master
2013-04-16 10:39:31 [4175] [INFO] Reason: Worker failed to boot.
Follow the instructions found here:
https://newrelic.com/docs/python/python-agent-integration
I'm assuming as this i posted in Django that its a Django app.
add
import newrelic.agent
newrelic.agent.initialize('/some/path/newrelic.ini')