Good morning,
I have created a callback in Dash that makes the job of a scheduler.
Every 10 minutes (with the help of an interval component), my callback is running to fetch the data from a server and to update the csv file that I use in my app.
The problem is that my callback is called only when I have the webpage opened. As soon as I close the page, the scheduler stops and runs again when I open the page again.
As the data process of updating data can be long sometimes, I want the scheduler to always run and fetch the data every 10 minutes.
I assume that a callback is a client side process right? So how can I make it run in server side?
Thank you,
Dash is probably not the right solution for this. I think it would make more sense to set up the Python code you need for this job in a simple .py script file, and set a cron job to run that script every 10 min.
Thank you #coralvanda for the help.
I finally did a python script in my container A that calls the container B every 10 minutes. The container B is fetching the data.
It makes the job.
import schedule
import time
import docker
def worker_restart():
client = docker.from_env()
container = client.containers.get('container_worker')
container.restart()
schedule.every(10).minutes.do(worker_restart)
while True:
schedule.run_pending()
time.sleep(1)
Related
I'm in a project in which I have to run an Anylogic simulator multiple times. I made an script to modify the input data, run the simulator and then store the output data just before the next simulation run.
The idea is to externally run the simulation (from a python file). The problem is that, when the simulation ends, the simulation window doesn't close automatically so the python file won't continue executing.
I´ve tried to run the simulator without showing the animation of the simulation but still opens a window so it doesn´t work for my purpose.
I don´t know if there is an option in Anylogic to export a model that automatically closes the window once the simulation is completed or if there is any way of creating a simulator that runs without opening any window.
Thank you.
Unfortunately there is no such solution. Even if you can run without UI in Linux, it will not automatically close once the run is complete. I use a workaround:
It is a Python script that scans the outputs folder every 5 seconds and if there are changes in the files, it closes the AnyLogic file. Use this as an inspiration::
from time import sleep
from utils.data.fileSystem import FileSystem
def sync_polling_folder(path, predicate, delay_sec):
print('checking under ' + path + ' folder')
beginning = FileSystem.stat(path)
old = beginning
new = beginning
def two_files_are_different():
return not predicate(str(old), str(new))
def the_process_has_not_begun():
return str(new) == str(beginning) or str(old) == str(beginning)
# if two folders are the same, quit (means no-changes = finished)
# but if they are equal because process never started, keep going
while two_files_are_different() or the_process_has_not_begun():
print('[sleeping] because files are not written yet.')
sleep(delay_sec) # main thread waiting
old = new
new = FileSystem.stat(path)
print('[anylogic] ready to be killed')
return True
While executing e2e tests in protractor when we are using ignore.synchronization=true/ browser.waitforAngularEnabled(true) to handle waits is too slow when compared to browser.sleep(10000) to proceed to next step. How to address these kind of wait issues to make the script execution faster?
Difference:
ignore.synchronization=true/ browser.waitforAngularEnabled(true) are used to make protractor wait until all the angular modules are loaded.
browser.sleep(// time in ms) is raw way of stopping the protractor for the given particular ms.
Solution:
To handle wait issues:
use browser.waitforAngularEnabled(false) after getting your base url. Then you can use expected waits which makes the protractor wait until that expectation is completed.
Refer https://www.protractortest.org/#/api?view=ProtractorExpectedConditions for more details
Hope it helps you
What I'm up to is to get the jenkins job details and store it in mongo DB every "X" minutes. I have to make an HTTP.call(JenkinsURL) which I know how to do. My problem is calling it for specific intervals.
buildDetails=HTTP.call('GET',buildURL);
buildURL has the Jenkins job URL. I found this link which gives an overview of the code for my problem, but I don't know how and where i should place these code to get it working. I tried all possibility.
Is there any method in meteor which can make this possible to run a specific code to be run for every X min??
Is there any method in meteor which can make this possible to run a specific code to be run for every X min??
Yes, there is.
Meteor.setInterval that can be used to do something repetitively every X interval of time.
You can put your HTTP call within it on the server. Eg:
Meteor.startup({function(){
var timerID = Meteor.setInterval(function(){
buildDetails=HTTP.call('GET',buildURL);
// and other things
}, 60000) //60000ms = 1 min
}
});
When you want to stop the timer function, simply call Meteor.clearInterval
Meteor.clearInterval(timerID);
I have created task on controller and there is loop which is loading for 100 times.
Now I want to load it for 25 times and pause that loop for 1 min and after that it will execute next 25 items same for next 25.
I have checked it with sleep but its not working.
Can you please advise me if is there any way on plugin event or any other method.
Thanks
This is actually unrelated to Joomla! Since you're creating a long running process you need to start it with something else than a browser. A CRON job is a good idea here if you want to execute this operation multiple times. Otherwise it can run via command line. Make sure the max_execution time setting of PHP does not cause any trouble.
If you still need this within Joomla please have a look at the CLI documentation.
https://docs.joomla.org/How_to_create_a_stand-alone_application_using_the_Joomla!_Platform
I have a few jobs setup in Quartz to run at set intervals. The problem is though that when the service starts it tries to start all the jobs at once... is there a way to add a delay to each job using the .xml config?
Here are 2 job trigger examples:
<simple>
<name>ProductSaleInTrigger</name>
<group>Jobs</group>
<description>Triggers the ProductSaleIn job</description>
<misfire-instruction>SmartPolicy</misfire-instruction>
<volatile>false</volatile>
<job-name>ProductSaleIn</job-name>
<job-group>Jobs</job-group>
<repeat-count>RepeatIndefinitely</repeat-count>
<repeat-interval>86400000</repeat-interval>
</simple>
<simple>
<name>CustomersOutTrigger</name>
<group>Jobs</group>
<description>Triggers the CustomersOut job</description>
<misfire-instruction>SmartPolicy</misfire-instruction>
<volatile>false</volatile>
<job-name>CustomersOut</job-name>
<job-group>Jobs</job-group>
<repeat-count>RepeatIndefinitely</repeat-count>
<repeat-interval>43200000</repeat-interval>
</simple>
As you see there are 2 triggers, the first repeats every day, the next repeats twice a day.
My issue is that I want either the first or second job to start a few minutes after the other... (because they are both in the end, accessing the same API and I don't want to overload the request)
Is there a repeat-delay or priority property? I can't find any documentation saying so..
I know you are doing this via XML but in code you can set the StartTimeUtc to delay say 30 seconds like this...
trigger.StartTimeUtc = DateTime.UtcNow.AddSeconds(30);
This isn't exactly a perfect answer for your XML file - but via code you can use the StartAt extension method when building your trigger.
/* calculate the next time you want your job to run - in this case top of the next hour */
var hourFromNow = DateTime.UtcNow.AddHours(1);
var topOfNextHour = new DateTime(hourFromNow.Year, hourFromNow.Month, hourFromNow.Day, hourFromNow.Hour, 0, 0);
/* build your trigger and call 'StartAt' */
TriggerBuilder.Create().WithIdentity("Delayed Job").WithSimpleSchedule(x => x.WithIntervalInSeconds(60).RepeatForever()).StartAt(new DateTimeOffset(topOfNextHour))
You've probably already seen this by now, but it's possible to chain jobs, though it's not supported out of the box.
http://quartznet.sourceforge.net/faq.html#howtochainjobs