All Questions
18 questions
0
votes
0
answers
51
views
Background thread stops unexpectedly and silently when cleaning up batches in Flask app
Question:
I am working on a Flask application where I need to periodically clean up stale batches in the database. To avoid unnecessary processing, I set up a background thread that checks for ...
- 11
-1
votes
1
answer
624
views
Does the thread can terminate when call OpenCV release() method?
The ThreadedCamera Class that get frame from thread.
I have two questions.
Q1: Will it affect program performance if I don't close threads when I create a lot of ThreadedCamera classes?
Q2: Does the ...
- 215
4
votes
2
answers
3k
views
Threading Tasks Queue in Flask [duplicate]
Hey guys so I'm building a websocket using flask and I'm currently creating a new thread for every request so that thread can do some heavy processing and not take too much time to return something ...
- 888
0
votes
1
answer
321
views
Flask server using asynchronous Rpc client only answer 1 request out of two
I'm trying to implement an async RPC client within a Flask server.
The idea is that each request spawn a thread with an uuid, and each request is going to wait until there is a response in the ...
- 33
1
vote
0
answers
21
views
Too many threads are getting generated Python flask [duplicate]
I am working in a startup company where one of our microservice is in Python Flask and another in Java Spring.
Between java and python code there is an asynchronous call for one task.
When Python API ...
2
votes
1
answer
787
views
Thread in python gets started twice on heroku
I have an app that runs in its own while true loop, but I want it to be interactable via a website, so my approach was to run the app on a separate thread and use flask with gunicorn, but that led to ...
- 516
0
votes
1
answer
129
views
How to start a background Thread within a Flask app?
I wrote a Flask app that is working fine, and I wanted that while it is running, a separate background thread should parallel to it doing some stuff. The problem is, doing this doesn't spawn the ...
- 573
1
vote
1
answer
2k
views
Python Thread - Memory not released
I need to generate a job-id for user-request call which I thought of handling it through python-theading using below block:
from flask_restful import Resource
from flask import ...
- 218
1
vote
0
answers
882
views
Flask: how to write to SQLAlchemy DB when multithreading?
I am using multithreading in a Flask app and want each thread to append to an entry in a database. However, I can never get this to work. Per Multi-threaded use of SQLAlchemy I have something like the ...
- 1,217
2
votes
3
answers
1k
views
Why child threads cannot access the current_user variable in flask_login?
I am writing a Flask application and I am trying to insert a multi-threaded implementation for certain server related features. I noticed this weird behavior so I wanted to understand why is it ...
- 5,027
1
vote
1
answer
824
views
flask-sqlalchemy - how to obtain a request-independent db session
I am looking at the best (and correct way) to obtain a request-independent db session.
The problem is the following: I am building a web application that has to access the database. The endpoint ...
-2
votes
1
answer
45
views
What is the best way to terminate a thread in python?
I am implementing a Flask application and I'm calling a function A, based on a request. Inside the function A, there is another function called B and it is called. But, I don't need to wait until the ...
0
votes
1
answer
471
views
Flask redirect or return data from nested view function
I am trying to run code from a view on a GET request. This code is executed in a new thread because it takes some time to run. Note that I am not joining the thread because then the view would hang.
I ...
- 2,286
0
votes
2
answers
731
views
Threading an external script within a Flask app
I have a Flask app that is using external scripts to perform certain actions. In one of the scripts, I am using threading to run the threads.
I am using the following code for the actual threading:
...
- 67
-1
votes
1
answer
243
views
Python threading script execution in Flask Backend
Currently i'm trying to use proper threading to execute a bunch of scripts.
They are sorted like that:
Main Thread (Runs the Flask app)
-Analysis Thread (Runs the analysis script which invokes all ...
