Question

我有一个芹菜任务，我需要它在下午12点30分才开始运行。我怎么用celery-beat做这件事。我知道如何定期运行它，但不知道接下来的五天任何想法？

Answer 1

查看crontab的celery-beat docs。虽然这实际上是一次性的事情，但根据定义，它并不是完全周期性的。您可以设置一个crontab定期任务，在接下来的5天内在上午12:30运行，但您还必须记得手动将其关闭。

如果你走这条路

from celery.schedules import crontab

CELERYBEAT_SCHEDULE = {
    'add-at-midnightish': {
        'task': 'tasks.add',
        'schedule': crontab(hour=0, minute=30,),
        'args': (16, 16),
    },
}

或者，您可以使用eta

中提到的apply_async上的

package test;
import java.io.*;
import java.util.Scanner;

public class test {

    //Main Method
    public static void main (String args[]) 
    {
        String origFileName = "zuess.txt";
        String newFileName = "NewFile.txt";

        PrintWriter outputStream = null;
        try {
            outputStream = new PrintWriter
                    (new File(newFileName));
        } catch (FileNotFoundException e1) {
            System.out.println("Error opening the file " + origFileName);
            System.exit(0);
        }
        Scanner inputStream = null;
        try {
            inputStream = new Scanner
                    (new File(origFileName));
        } catch (FileNotFoundException e1) {
            System.out.println("Error opening the file " + origFileName);
            System.exit(0);
        }
        while(inputStream.hasNextLine())
        {
            String line = inputStream.nextLine();
            String[] arr = line.split(" ");
            for(int i = 1; i < arr.length; i++)
                outputStream.write(arr[i]+" ");
            outputStream.println();
        }
        outputStream.close();
        inputStream.close();

        try 
        {
            inputStream = new Scanner( new File (newFileName));
        }
        catch(FileNotFoundException e)
        {
            System.out.println("Error opening the file " + newFileName);
            System.exit(0);
        }

        System.out.println("The file " + newFileName + " Contains the following lines: ");
        while (inputStream.hasNextLine())
        {
            String text = inputStream.nextLine();
            System.out.println(text);
        }
        inputStream.close();
    }//End main
}//end class

关键字

Celery仅在接下来的5天内定期运行任务

1 个答案: