Is there anything in the logs that might show why it crashed?

/bin/bash: line 1: web:: command not found

container event container restart

/bin/bash: line 1: web:: command not found

container event container died

Also when the app was up, it timedout on few api calls and I tried web: gunicorn app:app --timeout 120

but I am back to web: gunicorn app:app in procfile

web: is a Procfile thing, you should be able to set your start command to just gunicorn app:web --timeout 120

Railway hasn't supported procfiles in a long time

File "/opt/venv/lib/python3.11/site-packages/gunicorn/util.py", line 402, in import_app

app = getattr(mod, name)

      ^^^^^^^^^^^^^^^^^^

AttributeError: module 'app' has no attribute 'web'

Failed to find attribute 'web' in 'app'.

[2024-09-13 14:09:51 +0000] [4] [INFO] Worker exiting (pid: 4)

[2024-09-13 14:09:51 +0000] [1] [INFO] Shutting down: Master

[2024-09-13 14:09:51 +0000] [1] [INFO] Reason: App failed to load.

container event container restart

[2024-09-13 14:09:52 +0000] [1] [INFO] Starting gunicorn 20.1.0

[2024-09-13 14:09:52 +0000] [1] [INFO] Listening at: http://0.0.0.0:8080 (1)

[2024-09-13 14:09:52 +0000] [1] [INFO] Using worker: sync

[2024-09-13 14:09:52 +0000] [4] [INFO] Booting worker with pid: 4

Traceback (most recent call last):

File "/opt/venv/lib/python3.11/site-packages/gunicorn/util.py", line 402, in import_app

app = getattr(mod, name)

      ^^^^^^^^^^^^^^^^^^

AttributeError: module 'app' has no attribute 'web'

Failed to find attribute 'web' in 'app'.

[2024-09-13 14:09:52 +0000] [4] [INFO] Worker exiting (pid: 4)

[2024-09-13 14:09:52 +0000] [1] [INFO] Shutting down: Master

[2024-09-13 14:09:52 +0000] [1] [INFO] Reason: App failed to load.

container event container died

[2024-09-13 14:09:53 +0000] [1] [INFO] Starting gunicorn 20.1.0

[2024-09-13 14:09:53 +0000] [1] [INFO] Listening at: http://0.0.0.0:8080 (1)

[2024-09-13 14:09:53 +0000] [1] [INFO] Using worker: sync

[2024-09-13 14:09:53 +0000] [4] [INFO] Booting worker with pid: 4

Traceback (most recent call last):

File "/opt/venv/lib/python3.11/site-packages/gunicorn/util.py", line 402, in import_app

app = getattr(mod, name)

      ^^^^^^^^^^^^^^^^^^

AttributeError: module 'app' has no attribute 'web'

Failed to find attribute 'web' in 'app'.

[2024-09-13 14:09:53 +0000] [4] [INFO] Worker exiting (pid: 4)

container event container restart

[2024-09-13 14:09:54 +0000] [1] [INFO] Shutting down: Master

[2024-09-13 14:09:54 +0000] [1] [INFO] Reason: App failed to load.

[2024-09-13 14:09:55 +0000] [1] [INFO] Starting gunicorn 20.1.0

[2024-09-13 14:09:55 +0000] [1] [INFO] Listening at: http://0.0.0.0:8080 (1)

[2024-09-13 14:09:55 +0000] [1] [INFO] Using worker: sync

[2024-09-13 14:09:55 +0000] [4] [INFO] Booting worker with pid: 4

Traceback (most recent call last):

File "/opt/venv/lib/python3.11/site-packages/gunicorn/util.py", line 402, in import_app

app = getattr(mod, name)

      ^^^^^^^^^^^^^^^^^^

AttributeError: module 'app' has no attribute 'web'

Failed to find attribute 'web' in 'app'.

[2024-09-13 14:09:55 +0000] [4] [INFO] Worker exiting (pid: 4)

[2024-09-13 14:09:55 +0000] [1] [INFO] Shutting down: Master

[2024-09-13 14:09:55 +0000] [1] [INFO] Reason: App failed to load.

container event container died

[2024-09-13 14:09:56 +0000] [1] [INFO] Starting gunicorn 20.1.0

[2024-09-13 14:09:56 +0000] [1] [INFO] Listening at: http://0.0.0.0:8080 (1)

[2024-09-13 14:09:56 +0000] [1] [INFO] Using worker: sync

[2024-09-13 14:09:56 +0000] [4] [INFO] Booting worker with pid: 4

Traceback (most recent call last):

File "/opt/venv/lib/python3.11/site-packages/gunicorn/util.py", line 402, in import_app

app = getattr(mod, name)

      ^^^^^^^^^^^^^^^^^^

AttributeError: module 'app' has no attribute 'web'

Failed to find attribute 'web' in 'app'.

[2024-09-13 14:09:56 +0000] [4] [INFO] Worker exiting (pid: 4)

[2024-09-13 14:09:56 +0000] [1] [INFO] Shutting down: Master

[2024-09-13 14:09:56 +0000] [1] [INFO] Reason: App failed to load.

container event container died

[2024-09-13 14:09:57 +0000] [1] [INFO] Using worker: sync

Can you share your repo? Your application might be called app and not web, in which case, you would use app:app

yes we do

That is true.

I am restarting with app:app

Now the app is up. testing the api calls to see if it times out

Same issue

DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): feed-api.cielo.finance:443

[2024-09-13 14<:16:1199656381486219374>51 +0000] [1] [CRITICAL] WORKER TIMEOUT (pid:4)

[2024-09-13 14<:16:1199656381486219374>51 +0000] [4] [INFO] Worker exiting (pid: 4)

[2024-09-13 14<:16:1199656381486219374>51 +0000] [5] [INFO] Booting worker with pid: 5

It is a worker timeout

Check the update

how long do you expect a single request to take

it depends on the response but should not take more than 5-7 seconds tbh

when testing, how many RPS are you doing?

what is RPS?

locally it works

requests per second

It is adata analysis application hitting many different apis

so def. 100 req/sec

then you are likely running into issues with having run gunicorn with sync workers

start it with the uvicorn event worker

how do I do it?

what's your current start command

gunicorn app:app --timeout 120

gunicorn app:app --timeout 120

no need to ping reply

what kind of app? fastapi, flask?

flask

your start command would become gunicorn app:app --timeout 120 --worker-class eventlet

you will also need to make sure eventlet is in your requirements.txt file

Here's my current req

Flask==2.0.3

Werkzeug==2.0.3

Jinja2==3.0.3

itsdangerous==2.0.1

click==8.0.4

gunicorn==20.1.0

requests==2.26.0

prettytable==2.5.0

Flask-Login==0.5.0

what version should I use for eventlet

the latest is probably fine

ok, made changes and redeploying

Error: class uri 'eventlet' invalid or not found:

[Traceback (most recent call last):

File "/opt/venv/lib/python3.11/site-packages/gunicorn/util.py", line 99, in load_class

mod = importlib.import_module('.'.join(components))

      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "/root/.nix-profile/lib/python3.11/importlib/init.py", line 126, in import_module

return _bootstrap._gcd_import(name[level:], package, level)

       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "", line 1204, in _gcd_import

File "", line 1176, in _find_and_load

File "", line 1147, in _find_and_load_unlocked

File "", line 690, in _load_unlocked

File "", line 940, in exec_module

File "", line 241, in _call_with_frames_removed

File "/opt/venv/lib/python3.11/site-packages/gunicorn/workers/geventlet.py", line 20, in

from eventlet.wsgi import ALREADY_HANDLED as EVENTLET_ALREADY_HANDLED

ImportError: cannot import name 'ALREADY_HANDLED' from 'eventlet.wsgi' (/opt/venv/lib/python3.11/site-packages/eventlet/wsgi.py)

]

container event container died

do you have it in your requirements.txt?

Flask==2.0.3

Werkzeug==2.0.3

Jinja2==3.0.3

itsdangerous==2.0.1

click==8.0.4

gunicorn==20.1.0

requests==2.26.0

prettytable==2.5.0

Flask-Login==0.5.0

eventlet==0.33.3

whats your start command

shoujd I use gevent?

^

gunicorn app:app --timeout 120 --worker-class eventlet

I have a Procfile

does it matter for Railway

no, we support procfiles

okay try gevent

trying now

invalid type: string "gunicorn --timeout 120 --worker-class gevent app:app", expected a ma

did I get format right?

try moving app:app to after gunicorn

context: 5f53c0eeaf434d6d998e9ed8ac0a2c0f

Nixpacks build failed

Error: Reading Procfile

Caused by:

invalid type: string "gunicorn app:app --timeout 120 --worker-class gevent", expected a map

just way beyond my understanding...

gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -I/nix/store/wwg6376ymkhpjxy6c3w9gkbhv6l2gmqy-libxcrypt-4.4.36/include -fPIC -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -DEV_USE_REALTIME=1 -DEV_USE_MONOTONIC=1 -DEV_USE_FLOOR=1 -Isrc/gevent/libev -I/nix/store/k3701zl6gmx3la7y4dnflcvf3xfy88kh-python3-3.11.9/include/python3.11 -I/root/.nix-profile/include/python3.11 -I/tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/deps -I/tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/src/gevent/libev -I/tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/deps/libev -Isrc/gevent -Isrc/gevent/libev -Isrc/gevent/resolver -I. -I/opt/venv/include -I/nix/store/k3701zl6gmx3la7y4dnflcvf3xfy88kh-python3-3.11.9/include/python3.11 -c src/gevent/libev/callbacks.c -o build/temp.linux-x86_64-cpython-311/src/gevent/libev/callbacks.o

#11 103.8 gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -I/nix/store/wwg6376ymkhpjxy6c3w9gkbhv6l2gmqy-libxcrypt-4.4.36/include -fPIC -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -DEV_USE_REALTIME=1 -DEV_USE_MONOTONIC=1 -DEV_USE_FLOOR=1 -Isrc/gevent/libev -I/nix/store/k3701zl6gmx3la7y4dnflcvf3xfy88kh-python3-3.11.9/include/python3.11 -I/root/.nix-profile/include/python3.11 -I/tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/deps -I/tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/src/gevent/libev -I/tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/deps/libev -Isrc/gevent -Isrc/gevent/libev -Isrc/gevent/resolver -I. -I/opt/venv/include -I/nix/store/k3701zl6gmx3la7y4dnflcvf3xfy88kh-python3-3.11.9/include/python3.11 -c src/gevent/libev/corecext.c -o build/temp.linux-x86_64-cpython-311/src/gevent/libev/corecext.o

#11 103.8 In file included from src/gevent/libev/libev.h:9,

#11 103.8 from src/gevent/libev/corecext.c:1319:

#11 103.8 /tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/deps/libev/ev.c:580:48: warning: "/*" within comment [-Wcomment]

#11 103.8 580 | /#define MIN_INTERVAL 0.00000095367431640625 / 1/2**20, good till 2200 */

#11 103.8 |

#11 103.8 /tmp/pip-install-mht4g7p5/gevent_7b95d12f6294466681fc5ce8f6126ea3/deps/libev/ev.c: In function ‘ecb_binary32_to_binary16’:

gone back to eventlet

File "/opt/venv/lib/python3.11/site-packages/eventlet/greenio/base.py", line 32, in

socket_timeout = eventlet.timeout.wrap_is_timeout(socket.timeout)

                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "/opt/venv/lib/python3.11/site-packages/eventlet/timeout.py", line 166, in wrap_is_timeout

base.is_timeout = property(lambda _: True)

^^^^^^^^^^^^^^^

TypeError: cannot set 'is_timeout' attribute of immutable type 'TimeoutError'

]

container event container died

can I use python-3.9.7

yes, set it in a runtime.txt file

I did that but no idea how to resolve the issue with timeouts

neither gevent or eventlet is working on railway

is your app now using gevent

gevent had build issues so I went back to eventlet

but eventlet is crashing the docker

Error: class uri 'eventlet' invalid or not found:

you woud need to get one of them working

runtime.txt does not seem to be getting picked up

why do you say that

File "/opt/venv/lib/python3.11

using python3.11

i cant verify that, you are about to delete the service

I deleted the service

started a new one.

and I got things back to a place where it is working

not using eventlet or gevent

just timeout

I want to see if the error persists

atleast now I don't have build issues or deployment issues

this wasnt an issue with railway so the timeout issue isnt going to change

no timeouts locally

local dev works fine

you are not running sync workers locally

are you sure this is flask?

Yes

app = Flask(name)

same error

[2024-09-13 16<:16:1199656381486219374>28 +0000] [1] [CRITICAL] WORKER TIMEOUT (pid:4)

[2024-09-13 16<:16:1199656381486219374>28 +0000] [4] [INFO] Worker exiting (pid: 4)

[2024-09-13 16<:16:1199656381486219374>28 +0000] [5] [INFO] Booting worker with pid: 5

you need to use an async worker

that will require changes ot my code?

I just want to replicate my local environment on railway

im not sure

in a production environment you must use gunicorn

yes that works

and in your case you also need to use async workers

but the moment I add eventlet, it is not even building

the moment I add gevent, docker is crashing

try gthread then

increasaed timeout sufficiently large so that works but towards the end, the final request the response got chopped off

is there a limit on the size of response for railway?

no, only a 5 minute time limit

this was the last step before rendering if you see logs

increasing the time-out here is just a Band-Aid solution

still dont kknow why railway has issue.

works fine on local

works well on a vps server

fails on railway

that not not indicate an issue with railway, that indicates an issue with your configurations on railway

you need to use an async worker so that your app can handle more then 3 requests concurrently

yea, will need to implement celery and redis but was hoping that I can do that later.

Maybe for now, I just use VPS and evaluate railway later on

you can do celery and redis later, right now you need to use an async worker

didn't we try that?

eventlet and gevent both crash the docker for whatever reason

you have something misconfigured and will need to look into why that's happening

I'll modify the code to see if it works

by importing asyncio & aiohttp and adding async with in front of all my request fetch functions

Figured out a way.

Is there a way to hard refresh a web page?

feels like it is serving some cached version

railway doesnt do any asset caching, is it behind cloudflare?

I migrated the Flask App to NodeJS app

is the startup command - web: node app.js

container is failing right now

Build is successful

please provide the error

/bin/bash: line 1: web:: command not found

container event container died

what is the contents of your procfile

web: node app.js

I'll check back with this when I'm back at the computer so I can view your logs, I don't think you are sending me the correct error

\

wait, aren't you deploying from a Dockerfile? why do you have a procfile

I connected my github project from railway

railway handles everything

I can remove the procfile

you want me to try that?

haha slow down there

ok, let me know

trying my luck ...

send me your Dockerfile please

How do I do it?

I only have the node dev environment on my end. Then I commit my changes to Github. Railway auto deploys

you do not have a Dockerfile?

Nope

Never had one for flask app to

Didn’t know we need one

delete your Procfile

ok

deleted

what about the start command in update config?

you should have a start script in your package.json

"scripts": {

"start": "node app.js",

"dev": "app.js",

"test": "echo "Error: no test specified" && exit 1"

},

yea, it has always been there

then you have no need for a procfile

ok. but I am still getting the same problem

thats not valid syntax

what should I enter in there?

just node app.js?

figured it out. TY for your help!

no problem!

when you upgrade the plan, does the app needs to be redeloyed to take advantage of the new RAM etc?