jobs

Is it possible to handle relations between jobs (in this case services) in jsprit? For instance one job has to start at the same time with one or more other jobs. Or one job must not start before the end of another job (normal sequence). If not, do you know other java libraries that can handle such kind of restrictions? Thank you! Yes you can handle such relations with jsprit . It is a bit of coding, but - I think - easy to implement. To illustrate it, I prepared you five examples that are based on the Vehicle Routing Problems (VRP) developed by Christofides-Mingozzi-Toth's* (first

I have a collection of jobs that are running. When they complete I use receive-job and it writes the output to the screen. I'd like to take that output and log it to a file. I don't want to tee the output produced while the jobs are running because with multiple jobs running at once the logging would be interspersed. Get-Job | Receive-Job prints the output in a nice organized manner. I have tried all of the following and no output is written to the file or stored in a variable, it just goes to the screen: #Wait for last job to complete While (Get-Job -State "Running") { Log "Running..." -v

<a name="1"></a> 作者| 阿里云容器技术专家刘中巍（莫源） 导读 ：Kubernetes弹性伸缩系列文章为读者一一解析了各个弹性伸缩组件的相关原理和用法。本篇文章中，阿里云容器技术专家莫源将为你带来定时伸缩组件 kubernetes-cronhpa-controller 的相关介绍与具体操作，目前该组件已经正式开源，欢迎大家一起交流探讨。 <a name="FNKXx"></a> 前言 <br />容器技术的发展让软件交付和运维变得更加标准化、轻量化、自动化。这使得动态调整负载的容量变成一件非常简单的事情。在 Kubernetes 中，通常只需要修改对应的 replicas 数目即可完成。当负载的容量调整变得如此简单后，我们再回过头来看下应用的资源画像。<br /> <br />对于大部分互联网的在线应用而言，负载的峰谷分布是存在一定规律的。例如下图是一个典型 web 应用的负载曲线。从每天早上 8 点开始，负载开始飙高，在中午 12 点到 14 点之间，负载会回落；14 点到 18 点会迎来第二个高峰；在 18 点之后负载会逐渐回落到最低点。<br /> <br /> <br /> <br />资源的波峰和波谷之间相差 3~4 倍左右的容量，低负载的时间会维持 8 个小时左右。如果使用纯静态的容量规划方式进行应用管理与部署，我们可以计算得出资源浪费比为 25%

前言 随机写会导致磁头不停地换道，造成效率的极大降低 顺序写磁头几乎不用换道，或者换道的时间很短 fio 介绍 fio的输出报告中的几个关键指标: slat: 是指从 I/O 提交到实际执行 I/O 的时长（Submission latency） clat: 是指从 I/O 提交到 I/O 完成的时长（Completion latency） lat: 指的是从 fio 创建 I/O 到 I/O 完成的总时长 bw : 吞吐量 iops: 每秒 I/O 的次数 同步写测试 同步随机写 使用strace工具查看系统调用 strace -f -tt -o /tmp/randwrite.log -D fio -name=randwrite -rw=randwrite \ -direct=1 -bs=4k -size=1G -numjobs=1 -group_reporting -filename=/tmp/test.db 提取关键信息 root@wilson-ubuntu:~# strace -f -tt -o /tmp/randwrite.log -D fio -name=randwrite -rw=randwrite \ > -direct=1 -bs=4k -size=1G -numjobs=1 -group_reporting -filename=/tmp/test.db

I am sending push notifications from my server and want it to simply be executed in a background process. I've read the Laravel docs and I know about database driver and some other options as well. I've got it working with database driver on my local machine but one thing is bugging me that I've to start a background thread to listen for jobs which gets added to the queue using php artisan queue:listen --deamon . The point is, it is always consuming some of my resources and memory by running like a 'crone' task. I only want to create a new process when I trigger the push notification and it

Linux是目前应用最广泛的服务器操作系统，基于Unix，开源免费，由于系统的稳定性和安全性，市场占有率很高，几乎成为程序代码运行的最佳系统环境。linux不仅可以长时间的运行我们编写的程序代码，还可以安装在各种计算机硬件设备中，如手机、路由器等，Android程序最底层就是运行在linux系统上的。 一.文件和目录 1. cd命令，用于 切换当前目录，它的参数是要切换到的目录的路径，可以是绝对路径，也可以是相对路径 。 cd /home 进入 '/ home' 目录 cd .. 返回上一级目录 cd ../.. 返回上两级目录 cd 进入个人的主目录 cd ~user1 进入个人的主目录 cd - 返回上次所在的目录 2. pwd命令，显示工作路径 [root@mailvip ~]# pwd /root 3. ls命令，查看文件与目录的命令，list之意 ls 查看目录中的文件 ls -l 显示文件和目录的详细资料 ls -a 列出全部文件，包含隐藏文件 ls -R 连同子目录的内容一起列出（递归列出），等于该目录下的所有文件都会显示出来 ls [0-9] 显示包含数字的文件名和目录名 4. cp命令，用于复制文件，copy之意，它还可以把多个文件一次性地复制到一个目录下 -a ：将文件的特性一起复制 -p ：连同文件的属性一起复制，而非使用默认方式，与-a相似，常用于备份 -i

Task: Auto kill all child processes if parent process terminate. Parent procees can be terminated not only in correct way, but also by killing in ProcessExplorer, for example. How can I do it? Similar question in С topic advice to use Job objects. How to use it in C# without exporting external DLL? I tried to use Job Objects. But this code doesn't work properly: var job = PInvoke.CreateJobObject(null, null); var jobli = new PInvoke.JOBOBJECT_BASIC_LIMIT_INFORMATION(); jobli.LimitFlags = PInvoke.LimitFlags.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE | PInvoke.LimitFlags.JOB_OBJECT_LIMIT_PRIORITY_CLASS |

普通用户 hr进行expdp数据导出，报权限不够的错误 [oracle@dbserver ~]$ expdp hr/hr directory=exp_dir dumpfile=full.dmp full=y Export: Release 11.2.0.4.0 - Production on Fri Oct 31 17:49:00 2014 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options ORA-31631: privileges are required ORA-39161: Full database jobs require privileges 报错了，主要是 hr用户没有 exp_full_database角色。 重新授予权限后， sql> GRANT EXP_FULL_DATABASE TO hr; 问题搞定 [oracle@dbserver ~