scheduler

Quartz Job Scheduler in Windows Service

耗尽温柔 提交于 2019-12-04 20:55:43
I have this windows service project which's OnStart method looks like this protect void OnStart(string[] args) { IScheduler someScheduler = _schedFactory.GetScheduler(); // _schedFactory is a priva field of the service class IJobDetail someJob = JobBuilder.Create<SomeJob>() .WithIdentity("SomeJob") .Build(); ITrigger someTrigger = TriggerBuilder.Create() .StartAt(new DateTimeOffset(DateTime.UtcNow.AddSeconds(30))) .WithSimpleSchedule(schedule => scheduler.WithIntervalInMinutes(3).RepeatForever()) .Build(); someScheduler.SchedulerJob(someJob, someTrigger); someScheduler.Start(); } I use Visual

How do I display the current disk IO queue length on Linux? [closed]

☆樱花仙子☆ 提交于 2019-12-04 19:04:15
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 11 months ago . I am working on a new IO scheduler for the Linux Kernel. I am trying to see if anyone knows of a tool that prints out total number of outstanding IO requests (Disk IO queue) in Linux? I would be working from a terminal. Thank you! 回答1: Forgive the massive necro here. You actually want iostat -x which will

python apscheduler - skipped: maximum number of running instances reached

人盡茶涼 提交于 2019-12-04 17:01:36
问题 I am executing a function every second using Python apscheduler (version 3.0.1) code : scheduler = BackgroundScheduler() scheduler.add_job(runsync, 'interval', seconds=1) scheduler.start() It's working fine most of the time but sometimes I get this warning: WARNING:apscheduler.scheduler:Execution of job "runsync (trigger: interval[0:00:01], next run at: 2015-12-01 11:50:42 UTC)" skipped: maximum number of running instances reached (1) 1.Is this the correct way to execute this method? 2.What

python apscheduler not consistent

為{幸葍}努か 提交于 2019-12-04 16:35:28
I'm running a scheduler using python apscheduler inside web.py framework. The function runserver is supposed to run everyday at 9 a.m but it is inconsistent. It runs most days but skips a day once in a while. Code: import web from apscheduler.schedulers.blocking import BlockingScheduler #Blocking Scheduler #URLs urls = ( '/startscheduler/','index', ) Nightlysched = BlockingScheduler() @Nightlysched.scheduled_job('cron', hour=9) def runserver(): print 2+2 #doing some calculations here #Main function to run the cron JOB if __name__ == "__main__": Nightlysched.start() #stating the job app = web

Register a broadcast receiver from a service in a new thread

萝らか妹 提交于 2019-12-04 14:58:38
I have a broadcastreciever which start a long operation (uploading process). In the code of a service started from the Activity class, I need to register this receiver in a new thread. I have checked this post Are Android's BroadcastReceivers started in a new thread? but I need a more concrete example about using Context.registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler) Actually I need to know how to create a new thread from a service and to register the receiver and attached to this thread. Thank you very much. RA In your service

Cron job run every x weeks and on specific days [closed]

。_饼干妹妹 提交于 2019-12-04 11:49:44
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . I want to create a cron job that runs every x weeks and on a specific weekdays. for example: run every 2 weeks on midnight every Sunday and Monday. the cron expression is stored for every "plan" and i use ncrontab function in SQL Server 2008 to generate the dates of given cron expression. Is there an expression

How to run airflow scheduler as a daemon process?

99封情书 提交于 2019-12-04 08:40:39
I am new to Airflow. I am trying to run airflow scheduler as a daemon process, but the process does not live for long. I have configured "LocalExecutor" in airflow.cfg file and ran the following command to start the scheduler.(I am using Google compute engine and accessing server via PuTTY) airflow scheduler --daemon --num_runs=5 --log-file=/root/airflow/logs/scheduler.log When I run this command, the airflow scheduler starts and I can see the airflow-scheduler.pid file in my airflow home folder, but the process does not live for long. When I close the PuTTY session and reconnect to the server

What is the relation between `task_struct` and `pid_namespace`?

孤街醉人 提交于 2019-12-04 07:38:54
I'm studying some kernel code and trying to understand how the data structures are linked together. I know the basic idea of how a scheduler works, and what a PID is. Yet I have no idea what a namespace is in this context, and can't figure out how all of those work together. I have read some explanations (including parts of O'Reilly "Understanding the Linux Kernel") and understand that it could be that the same PID got to two processes because one has terminated and the ID got reallocated. But I can't figure out how all this is done. So: What is a namespace in this context? What is the

Spring boot with scheduler-BeanCreationNotAllowedException: Error creating bean with name 'entityManagerFactory': Singleton bean creation not allowed

▼魔方 西西 提交于 2019-12-04 07:16:36
We have a spring boot project with scheduler which reads the data from the database at fixed intervals. While building project from STS using maven we are getting below error in the console while it is running the test cases even though final build status is success. org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'entityManagerFactory': Singleton bean creation not allowed while the singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!) at org.springframework.beans.factory

ScheduledExecutorService only runs once

旧街凉风 提交于 2019-12-04 06:59:35
I want a process to run after I start my webservice, and then every 30 minutes or so afterwards, (I'm testing it with a smaller delay for now, just to see if it works), but my process never runs more than once. What am I doing wrong? Here is my code: @WebListener public class SchedulerService implements ServletContextListener{ @Autowired UpdateSubscriberService updateSubscriberService; ScheduledExecutorService scheduledExecService; public SchedulerService(){ scheduledExecService = Executors.newSingleThreadScheduledExecutor(); } @Override public void contextDestroyed(ServletContextEvent arg0) {