scheduler

Kubernetes调度算法介绍

由 别等时光非礼了梦想. 提交于 2020-03-02 03:49:33
调度流程 调度器就是一个独立的进程，负责不断从apiserver拉取还没有被调度的pod，以及可调度的node列表，通过一些列算法筛选，选出一个node并与该pod绑定，将绑定的结果写回apiserver 调度算法 下面讲解基于k8s v1.6.6的源码 算法需要经过两个阶段，分别是过滤和打分，首先过滤掉一部分，保证剩余的节点都是可调度的，接着在打分阶段选出最高分节点，该节点就是scheduler的输出节点。 算法流程： 过滤 过滤环节就是一条过滤器链，包含多个过滤器，每个相当于一个函数，接收node和待调度的pod作为参数，返回bool来确定是否可调度。通过组合多个函数可以完成一条可扩展的过滤器链。目前k8s中已注册的过滤器函数如下： 算法名称 是否默认 详细说明 NoVolumeZoneConflict 是 当主机上zone-label（地区）包含pod中PersistentVolume卷下的zone label时，可以调度。当主机没有zone-label，表示没有没有zone限制，也可调度 MaxEBSVolumeCount 是 当主机上被挂载的AWS EBS Volume超过了默认限制39，就不调度到该主机 MaxGCEPDVolumeCount 是 当主机上被挂载的GCD Persistent Disk超过了默认限制16，就不调度到该机器

Task Scheduler - Access non-local drives while running task not logged in

由 假装没事ソ 提交于 2020-02-18 05:33:31
问题 I had a task in win scheduler that runs every minute. The task runs a .bat file which SVN updates a series of folders then executes a perl script (which in turn will run off several others). The output/'log' of the perl script (tagged by date/time) is sent to a shared drive, not local to the machine the task runs on. The whole task works flawlessly until sending the log to the shared drive. Since the task needs to run every minute I figured it would be best to use the setting 'Run whether

Task Scheduler - Access non-local drives while running task not logged in

由 痴心易碎 提交于 2020-02-18 05:33:12
问题 I had a task in win scheduler that runs every minute. The task runs a .bat file which SVN updates a series of folders then executes a perl script (which in turn will run off several others). The output/'log' of the perl script (tagged by date/time) is sent to a shared drive, not local to the machine the task runs on. The whole task works flawlessly until sending the log to the shared drive. Since the task needs to run every minute I figured it would be best to use the setting 'Run whether

Develop a clock and workers in node.js on heroku

由 霸气de小男生 提交于 2020-02-02 03:02:53
问题 I'm working on a service that needs to analyze data from social media networks every five minutes for different users. I'm developing it in node.js and I will implement it on Heroku. According to this article on Heroku website, the best way to do that is separating the logic of the scheduler from the logic of the worker. In fact, the idea is to have one dyno dedicated to schedule tasks to avoid duplication. This dyno instructs a farm of workers (n dynos as needed) to do the tasks. Here is the

Task Scheduler is not supporting option “Run with highest Privilege” and “Run weather user is logged on or not”

由 情到浓时终转凉″ 提交于 2020-01-25 17:23:56
问题 I am trying to schedule Task on Task Scheduler, every thing is working fine unless I tick "Run with Highest privileges" or "Run weather user is logged on or not" As soon as I tick this, scheduler stop triggering my Script. Script- .Bat file using Power Shell command. Can any one figure out what went wrong? Edited- ( Changed file location from drive to network drive) @Echo Off :: SDate=DAYMONTHYEAR FORMAT of Systemdate ::set SDate=%date:~7,2%%date:~4,2%%date:~10,4% ::Variable for folder path

Task Scheduler is not supporting option “Run with highest Privilege” and “Run weather user is logged on or not”

由 ≡放荡痞女 提交于 2020-01-25 17:20:09
问题 I am trying to schedule Task on Task Scheduler, every thing is working fine unless I tick "Run with Highest privileges" or "Run weather user is logged on or not" As soon as I tick this, scheduler stop triggering my Script. Script- .Bat file using Power Shell command. Can any one figure out what went wrong? Edited- ( Changed file location from drive to network drive) @Echo Off :: SDate=DAYMONTHYEAR FORMAT of Systemdate ::set SDate=%date:~7,2%%date:~4,2%%date:~10,4% ::Variable for folder path

is there an event that fires at a specific time?

由 不羁的心 提交于 2020-01-25 05:19:21
问题 Is there a .NET event that fires at a specific time (eg. at 19:00) as opposed to timer which fires when the countdown finishes? It can be used as a scheduler to call certain method. 回答1: Take a look at Quartz.net. It's a great scheduling library for .net. 回答2: Not exactly but you can use timer and check if it is 19:00 already it its elapsed event and then fire the required code. Otherwise you can put your code in Task Scheduler to get it executed at 19:00 回答3: You can use Quartz.NET to run a

Understanding Scheduling and /proc/[pid]/sched

由 戏子无情 提交于 2020-01-23 18:23:05
问题 I have a single threaded application that is (spinning and) pinned to a core with taskset and CPU isolation (i.e. isolcpus=12-23 nohz_full=21,22,23 rcu_nocbs=12-23; I have 2 CPUs, and 12 core each -- Skylake): exec taskset -c 22 setuidgid myuser envdir ./env -c = /opt/bin/UtilityServer > /tmp/logs/utility-server.log For some reason, after running few hours, I checked the stats: UtilityServer (1934, #threads: 1) ------------------------------------------------------------------- se.exec_start

Quartz Job Scheduler in Windows Service

由 只愿长相守 提交于 2020-01-23 04:00:34
问题 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)

Do I need any more changes for AEM Schedulers?

由 痴心易碎 提交于 2020-01-22 03:41:04
问题 I am trying to implement simple scheduler for my project requirement, my project is using Adobe AEM . As of now I gone through Adobe site and tried to implement the given examples provided but none of them updating my error.log file. package sling.docu.examples; import com.majesco.logger.service.impl.Logger; import org.apache.felix.scr.annotations.Component; import org.apache.felix.scr.annotations.Service; import org.apache.felix.scr.annotations.Property; import com.majesco.dcf.common.util
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