problem description celery uses prefork mode (4 processes) and is used in conjunction with psycopg2. Each startup can successfully complete a celery task. InterfaceError: cursor already closed appears when the second task is carried out. What should...
question 1: is it normal to start by printing the following information? [D 180708 22:10:53 callback:161] Added: { callback : < bound method Connection._on_connection_error of < pika.adapters.tornado_connection.TornadoConnection object at 0x11043c8d0...
there is a graphics class celery task that must be run under windows. typing celery directly on the command line can run successfully as a whole and get the correct results. while using nssm to package celery as a service to start, although the task c...
the database has 10w records, which may increase to 20w in half a year, but it should not exceed 100w in the end. Server configuration: python3.6 celery+rabbitMQ CVM ubuntu 16.04 1G 1 core Database postgresql 10, with a limit of 100 connections t...
I want to use celery to make a distributed crawler Let celery grab the data and store it in my mysql database but the mysql database I bought only has 50 connections (database provider limit) so I can t start 100 worker to grab data at the same t...
1. My project is django 1.11, python 2.7, using celery 4.1, using django_celery_beat third-party libraries. After installation and migration, there is a scheduled task table in the admin background, which can be used normally. However, I recently used d...
supervisor is a process management tool under Linux, which can manage the services running in the foreground, while the services in the background need to be transformed into foreground before they can be managed through supervisor. The celery process s...
according to the tutorial pip3 install celery, enter celery help prompt on the command line after the tutorial celery: can t find the command. How to break ...
@celery_app.task(name=u"abc", routing_key="xxx") def func_abc(a, b, c, d): pass @task_success.connect(sender=u"abc") def on_abc_success(sender, result, **kwargs): pass the overall logic of the code is like this...
I need to execute two sets of tasks step by step. The subtasks in each set of tasks are executed in parallel celery, but the second group of tasks needs to wait for the first group of tasks to be completed before continuing to execute . from celery impo...
when using vuex, use in vue pages this.$store.commit( mapSet ,map); to call mutations to change state, but in mutations mapSet:(state,map)=>{ console.log(map); state.myMap=map; } but it is normal to output...
vue data, properties, event binding, these can be regarded as "stand-alone " functions, is the component function "stand-alone "? Is the vue routing for the switching component function "stand-alone "? Is npm run dev a necessary condition for the s...
when iphone uses html5 to play videos, it always displays the default player, how to remove the selected components from the image and play them purely on a web page. videojs did not find the corresponding settings, found a videojs progress bar on ...
I wanted to encapsulate a table component with search function myself, so I created a subcomponent tableWithSearch < template > {{tableData}} <!-- a.--> <div> <table :column="tableColumn" :data="tableDataAfterSearch...
is now working on a project that requires the use of Amap. A real-time navigation feature is used in the project. I d like to ask how to display our location in real time after the navigation path appears on the browser side, as we usually use app. ...