scheduler

问题 I have defined a function that when it is called it will define an oracle job with dbms_scheduler.create_job that runs a store_procedure with arguments my Function Begin job created and executed from here end; My problem is that when an instance of my job is executing I can not execute another instance of that job. as I said my jobs executes a store_procedure that have arguments so I want to execute that job with different values of arguments in the same time but I can not. is there any

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 6 years ago . I'm working on a payment scheduler which plans out n payments based on an arbitrary start date and one of a set of frequencies (daily, weekly, monthly, etc...) and am seeking a general purpose algorithm for doing so. I have attempted a brute force means of doing this, by casing the frequency and adding a certain

问题 In operating system the scheduler is invoked after the system call api or after a hardware interrupt processing. I am unable to get and found how and who calls the scheduler??? 回答1: The scheduler is invoked: With explicit blocking: mutex, semaphore, waitqueue, etc. If TIF_NEED_RESCHED flag is set, on the nearest possible occasion: If the kernel is preemptible: in syscall or exception context, at the next outmost preempt_enable() in IRQ context, return from interrupt-handler to preemptible

问题 I have simple scheduler for repeating task every 1 second: Cancellable task = Akka.system().scheduler().schedule( Duration.create(0, TimeUnit.MILLISECONDS), Duration.create(1, TimeUnit.SECONDS), actor, new TickMsg("Tick", 0, 120) ); Unfortunately every pass is late for the ticker-duration so finally actor receives TickMsg exactly 100 ms later - ok, that's described in the doc and it's clear to me: It does not execute tasks at the exact time, but on every tick, it will run everything that is

问题 I'm trying to get my head around scheduling in reactive extensions for python. I would like to use subscribe_on to process multiple observables in parallel. This works fine if the observable is created with just , but not if for example range or from_ are used. just defaults to Scheduler.immediate , while other generators default to Scheduler.current_thread . Which causes the difference, but feels inconsistent to me. Probably because I don't grasp the full problem. Consider the following

问题 I've got code that uses the C# TaskManager object to create a task. On Windows 7 it works fine but on Windows XP (and presumably other Windows) it doesn't work at all because the default user for the task is system and thus there's no session for the GUI to be displayed. If I modify the created task manually in the control panel widget to set the job to run only when user is logged in and only for the particular user, then everything works perfectly. But despite hours of searching I see no

问题 My question is more of a general wondering. I have two commands created using Laravel, let's call them A and B. Each one of these commands are scheduled with the ->dailyAt($par) method. But the $par parameter comes from a query. I mean something like this: protected function schedule(Schedule $schedule) { $schedulerTime_commandA = App\Model\CommandsTime::where('id', 1)->first()->time; $schedulerTime_commandB = App\Model\CommandsTime::where('id', 2)->first()->time; $schedule->command('A') -

问题 I want to use the timer-Service (especially @Schedule Annotation) in WebSphere Liberty Profile. Is that possible? Is there a feature for? https://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/downloads/wlp/8.5.5.0/ is nothing ;–( 回答1: Update: as pointed out this answer is no longer correct since support was added in June 2015. 8.5.5.6 and newer sports ejb timers. There is no support for EJB Timers in the Liberty profile. The infocenter details the supported features and EJB

问题 For Quartz Cron, is it possible at all to specify a cronexpression that corresponds to: Run every 6 minutes, starting from 9:12 AM until 5:37 PM. I attempted to write the cronexpression 0 12-37/6 9-17 ? * * but this does only runs once an hour. I also understand that the cronexpression 0 /6 9-17 ? * * corresponds to Run every 6 minutes between the hours of 9 AM and 5 PM . But is there any way to constrain the starting and ending minutes on that cronexpression? More generally, can I specify an

问题 Are there any open source Job Scheduler with REST API for commercial use which will support features like: Tree like Job dependency Hold & Release Rerun failed steps Parallelism Help would be appreciated :) NOTE: we are looking for open source alternative for TWS,Control-M,AutoSys. 回答1: JobScheduler would seem to meet your requirements: Open Source see: Open Source and Commercial Licenses Rest API see: Web Service Integration Parallelism see: Organisation of Jobs and Job Chains I think that