redelivery scheduled

(1) The program starts once after the scheduled task is set up, and the program runs until the server restarts. (2) If you run it repeatedly, it may not be the result you want, so you will start multiple same scheduled tasks (3) If each page include this page, then start a number of permanently running programs consume unnecessary system resources, It also affects the normal access of the page, if placed in

{Code ...} ignore_user_abort(true); set_time_limit(0); $b = str_repeat(' ', 10000); $i = 0; ob_start(); while (true) { sleep(1); file_put_contents('sf.txt', date('Y-m-d H:i:s') . $i . "\r\n", FILE_APPEND); echo $i,$b,''; ob_flush(); flush(); } I did not expect a few seconds of Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 133437441 bytes) in/data/home/hyu1658240001/htdocs/. php on line 16 is like this ah I just want to do a

The previous framework used the quartz framework to perform timing scheduling problems,This configuration is cumbersome, and each schedule needs to be added to the spring configuration,Can reduce the amount of configuration to improve development efficiency,Recently looked at spring's scheduled using annotations to dispatch,Feel very convenient, at least the configuration of things a lot less,So stay for forgetting,First, we need to configure our Spri

://cxf.apache.org/schemas/jaxws.xsdHttp://www.springframework.org/schema/txHttp://www.springframework.org/schema/tx/spring-tx-4.2.xsdHttp://www.springframework.org/schema/mvcHttp://www.springframework.org/schema/mvc/spring-mvc-4.2.xsdHttp://www.springframework.org/schema/utilHttp://www.springframework.org/schema/util/spring-util-4.2.xsdHttp://www.springframework.org/schema/aopHttp://www.springframework.org/schema/aop/spring-aop-4.2.xsdHttp://www.springframework.org/schema/taskhttp://www.springfr

First, because the report server does not know what causes the service is always abnormal, service inexplicably stopped, development said may be due to code anomalies, so write a simple script and scheduled tasks, every two minutes to review the process, if not start the process, otherwise do nothing.The script is as follows:#!/bin/bash./etc/profilea= ' Ps-ef |grep Tomcat-report |Grep-v grep | Wc-l ' anti-quote if ["$a"-ne 1]THEN/USR/LOCAL/TOMCAT-REPO

/dev /tmp Backup method Tar supports three ways of backing up:1. Full backup: Back up all target files or folders specified2. Incremental backup: Backup only atime files or folders that are different from the last backup3. Differential backup: Similar to incremental backup, only adds support for Windows file system This article mainly describes how to use tar to make incremental backups of the system and how to set up scheduled backups

I am reproduced, the original in this http://blog.csdn.net/sd4000784/article/details/7745947The previous framework used the quartz framework to perform timing scheduling problems,The boss said the configuration is too cumbersome, each schedule needs to be added in the spring configuration,Can reduce the amount of configuration to improve development efficiency,Recently looked at Spring's scheduled using annotations to dispatch,Feel very convenient, at

Ok, I wrote the SOLR content again, yesterday made a change and increment of the incremental index, today say about the deletion of the incremental index and the scheduled update of the incremental index, nonsense said, the following into the text.One, the deletion of incremental indexAs I said yesterday, the incremental index is actually the index of the data that the database has changed since the last time the index was done (incremental or full),

In Windows if you want the PHP program to run automatically then we have to use the Windows scheduled task to complete, let me give you students to introduce the implementation method. Specifically, if we need to use the Task Scheduler to run automatically, we should perform the following steps: 1. Start the Task Scheduler for Windows 2000 by clicking the Start button, and then selecting programs → accessories → system tools → task scheduler (or setti

This article mainly introduces how php schedules a task to verify whether multiple processes call the same job. it involves php's usage tips for calling a process in a scheduled task, it has some reference value. if you need it, you can refer to the example in this article to describe how to verify that multiple processes call the same job in php. We will share this with you for your reference. The details are as follows: When using

This article focuses on the use of scheduled tasks to execute the BAT batch file in Windows Server in a timed way, so that you can perform your own tasks on a timed basis.First, Windows Server 2008 differs greatly from the other server operating systems and Windows Server 2003, where the name of the scheduled task is "Task Scheduler" not in Control Panel, but in "Administrative Tools".because the server nee

The server needs to process some tasks on a regular basis. Generally, the crontab of Linux can be used for processing, which can be accurate to minutes. There are also scheduled tasks in windows, but previously the network administrator said that this vulnerability exists, and win2003 servers are not enabled. Crond is a Linux Command Used to regularly execute programs. After the operating system is installed, the task scheduling command is started by

Crontab-e Join: The first task is executed at 12 o'clock every day. The second task is executed at every Sunday. Split line ------------------------------------------------------------------------------------------------------------ Http://blog.csdn.net/tianlesoftware/article/details/5315039 Http://www.blogjava.net/freeman1984/archive/2010/09/23/332715.html Http://www.2cto.com/ OS /201301/183226.html Crontab has three ways to execute a scheduled