shutdown

I'm writing a perl script in which I've to shutdown my mssql server ,do some operation and then I've to restart it.I know 1 way is to use netstat to stopt the service but I cann't use that. So I tried installing DBI and DBD::ODBC module.I'm able to connect and execute queries by following code use DBI; my $data_source = q/dbi:ODBC:AUTOMATION_WOW64/; my $user = q/pa/; my $password = q/DCE/; # Connect to the data source and get a handle for that connection. my $dbh = DBI->connect($data_source, $user, $password) or die "Can't connect to $data_source: $DBI::errstr"; my $str=$dbh->prepare("select

问题分析 这个在windows下没有碰到过，因为此前跑Tomcat都是以服务而不是命令脚本的形式跑的，而且已经换了一个项目，所以暂时不考察windows下是否存在该问题。 难道是Tomcat版本问题？或者用带内存泄漏保护的Tomcat 7可以解决该问题？尝试将web应用跑在apache-tomcat-6.0.18、apache-tomcat-6.0.35、apache-tomcat-7.0.34，发现均存在无法shutdown.sh进程问题。 难道在CentOS（Linux）下，Tomcat无法用shutdown.sh停掉进程？显然不可能的。于是又把web应用从webapps中移走，换回tomcat自带的ROOT，果然启动后再shutdown.sh，查找不到原来的tomcat进程了，也就证明了是自己web应用的问题了。 解决方案 现在已经确定是web应用的问题了，所以可以提解决方案了。 Kill进程，修改tomcat bin目录下shutdown.sh和catalina.sh文件 忽略日志中的严重警告，因为这是关闭tomcat时候引起的，正常情况下不会发生这种内存泄露情况，而且Tomcat6.18以上版本的Tomcat已经做了内存泄露保护，交给Tomcat完成吧，我们只需要在shutdown.sh之后，补上一个kill -9 pid即可。要是嫌这样太麻烦了，可以如下这样改： ===

Hi all I am just curious to find out some code that can pro-grammatically REBOOT , SHUTDOWN and enter in to DOWNLOAD MODE mobile phones with. I have been exhausted scouring the internet to find something to do with this but have failed. Does any one have any ideas/links/references ? If your app is signed with the system key, you can use reboot() . On the other hand, if you have root you can still do it (this doesn't work on a few ROMs, mainly a few stock HTC ones. Shutdown: try { Process proc = Runtime.getRuntime() .exec(new String[]{ "su", "-c", "reboot -p" }); proc.waitFor(); } catch

Preface: This is the first real swing program I have done. I have a swing program, where one JButton is supposed to exit the program. That button triggers this.dispose();. When i click this JButton, it does make the window completely go away, but looking at the debugger, the program itself is still running. My main method only consists of: public static void main (String[] args) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new StartupGui().setVisible(true); } }); } My exit button looks like action button looks like: private void exitButtonActionPerformed(java.awt

I know that there are threads about this, I found this one: How to schedule a task to run when shutting down windows but it fails for me. I wrote a little program in LabView and made an exe out of it. It runs perfect when I double click the exe in normal windows operation (it takes just a few seconds to complete). Then I put the exe in a batch file and that batch file in the group policy as a shutdown script. The result is that the computer hangs when shuting down. It shows the shutdown screen for minutes and I have to power cycle the PC to start it again. I even tried only a simple file copy

I'm trying to shutdown PC remotely programmatically using c# via command prompt and I already done a few search and found out this kind of codes. System.Diagnostics.Process.Start("shutdown", "/s"); And since it doesn't spicify any pc which to shutdown so I tried changing that codes to this codes which I think satisfy my goal. But it turns out that this doesn't work. System.Diagnostics.Process.Start("shutdown", "/s /m \\192.168.1.21 /t 5 /c 'Shutdown in 5 seconds'"); NO Exception in C# it just don't shutdown. I also try this but no luck. System.Diagnostics.Process.Start("shutdown /s /m \\192

模块：ThreadPoolExecutor,ProcessPoolExecutor 导入方法： from concurrent.futures import ThreadPoolExecutor,ProcessPoolExecutor 原理： concurrent.futures是异步调用的机制 模块区分： from multiprocessing import Pool.apply/apply_async 既可同步也可异步 区分： 进程池中进程的数量为计算机核数+1 线程池中线程的数量为计算机核数*5 进程池中的回调函数是父进程调用的，和子进程没有关系 线程池中的回调函数是子线程调用的，和父进程没有关系 模块方法： shutdown() 等效于进程池Pool中的close和join的组合 使用方法： 提交任务用submit 再强调： 如果程序的IO操作比较多，则采用多线程的方式，因为多线程的切换速度比多进程快 如果程序的计算比较多，则采用多进程的方式 小结：针对计算密集的程序来说，Pool或者ProcessPoolExecutor执行效率相当，而ThreadPoolExecutor相对于前两者效率更差 所以当计算密集时使用多进程 #######线程池（进程池）（多任务提交） from concurrent.futures import ThreadPoolExecutor

血一样的教训，今天上午参加了一家现场面试java。在这之前，我一直认为我的java基础还是可以的，而今天一问三不知。现在将面试的问题整理出来 一、说说java中的线程池？ 　　1. 线程池 ：线程池是线程的集合，不用自己创建线程，把线程直接给线程池，由线程池处理。 2. 过程 ：首先，使用线程池可以重复利用已有的线程继续执行任务，避免线程在创建和销毁时造成的消耗。 其次，由于没有线程创建和销毁时的消耗，可以提高系统响应速度。 　　　　　最后，通过线程可以对线程进行合理的管理，根据系统的承受能力调整可运行线程数量的大小等。 3. 用线程池的例子： package com.company; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; /*线程池*/ public class ThreadPool implements Runnable{ @Override public void run() { System.out.println(Thread.currentThread().getName()); } public static void main(String[] args) { ExecutorService executorService =

开启虚拟机调试网络配置命令 vi /etc/sysconfig/network-scripts/ifcfg-eth0 nmtui （系统图 （编辑）（文件打开路径） 形修改 需先按ESC再按:号 命令） wq (保存修改编辑操作退出）（q(没有修改可以直接推出）!是强制） systemctl restart network （ 系统控制命令, 控制管理服务程序(停止 开启 重启)） ip address show（显示主机IP地址/子网掩码/网关） ip address delete（删除主机IP/子网掩码/网关） net.ifnames=0 biosdevname=0 （修改网卡名 1) 什么是系统命令提示符 说明: 提示管理系统用户什么时候可以输入命令 [root@oldboy69 ~]# ① ② ③ 组成说明: ① 此时登录系统用户名称 ② 设置主机名称信息 ③ 显示所在路径信息 （ ~ ）在用户家目录中 2) 命令语法说明 语法规范: 命令 空格 [参数/需求条件] 空格 对象信息(文件/目录) 命令演示: vi -n /etc/hosts ifcfg-eth0 3) 系统目录结构 windows : C:\oldboy\oldboy.txt D:\oldgirl\oldgirl.txt 绝对路径查找数据: 从根开始查找数据信息 linux : /oldboy/oldboy