320x200 monitor

Label:Using shell scripts to monitor and manage Oracle databases will greatly simplify the workload of DBAs, such as common monitoring of instances, monitoring of monitors, monitoring of alarm logs, backup of databases, automatic mailing of AWR report, etc. This article gives an example of using shell scripts to monitor Oracle instances under Linux. Reference for Linux Shell:Linux/unix calling Sql,rman scri

First, the relevant instructionsThe production line uses the Zabbix 2.4.5 to monitor all business and system networks, of course, also need to monitor the MySQL database related information, Zabbix with the MySQL monitoring template can monitor MySQL, this article in the Zabbix 2.4.5 version, Other versions please experiment on your own.Second, configure the MySQ

Ubuntu sets the wireless network card to the monitor Mode. The first thing to ensure is that the wireless network card supports the monitor mode, which can be viewed through the iwlist command. After confirming that the wireless network adapter supports the monitor mode, disable the wireless network adapter sudoifdownwlan0 and set the wireless network adapter to

On-Line Analytical Processing (OLAP) system is the main application of Data Warehouse system, specially designed to support complex analysis operations, focusing on decision support for decision-makers and senior managers, and can quickly and flexibly carry out complex query processing of large amount of data according to the requirements of analysts. And in an intuitive and understandable form of the query results provided to decision makers, so that they accurately grasp the business (company)

Lock (OBJ) {console. writeline (system. datetime. now); // monitor. exit (OBJ); thread. sleep (1, 3000); console. writeline (system. datetime. now );} The code above indicates that if the monitor. Exit (OBJ); Code is not deregistered, the error "the object synchronization method is called from the unsynchronized code block" will appear, The current Code environment is net 3.5 SP1, and lock is equivalent

Reading the same series: multithreading: C # thread synchronization lock, monitor, mutex, synchronization event and wait handle (on), multithreading: C # thread synchronization lock, monitor, mutex, synchronization event and wait handle (medium) The first two articles briefly introduce the basic usage of thread synchronization lock, monitor, synchronization eve

data. Therefore, in terms of network management, it is necessary to understand the traffic status of our hosts and limit or increase bandwidth based on traffic.We can download the MRTG software from the http://www.mrtg.org. Go to http://www.stat.ee.ethz.ch/mrtg/to get the output result of the mrtgtraffic monitoring chart.MRTG is written in Perl and uses zlib, Gd, and PNG functions (zlib is used to compress charts and GD is used to draw charts ). Servers already contain the following software: P

In everyday applications, you will often experience the following scenarios, monitor folder A, and execute the C command if the B file in the folder changes. Linux can perform this function through INotify. Since Linux kernel 2.6.13, INotify is part of the kernel and requires GLIBC 2.4 or more versions. 1. Correlation function Inotify_init ()-Create a INotify instance Inotify_add_watch (int fd, const char *pathname, uint32_t Mask)-Add files or directo

Android Developer: Memory Monitor demo This demo shows the basic usage and process of the Memory Monitor tool in Android Studio. Memory Monitors reports the Memory allocated by your app in real time. Its advantages: Display available and used memory in the chart, and garbage collection events over time. Quickly test whether the app slows down may be related to the transition garbage collection event. Qu

The tryenter () method of the monitor class is similar to the enter () method in trying to obtain an explicit lock on an object. However, it does not block execution like the enter () method. If the thread successfully enters the key area, the tryenter () method returns true. Two of the three overload methods of the tryenter () method use a timeout value as the parameter, indicating that the lock is waiting for the specified time. Let's look at an exa

LINUX-monitor server status and linux Monitoring Server This document describes how to monitor the operating status of linux servers, including CPU, hard disk, memory, network interfaces, and motherboard.How to monitor Hard Disks Core Ideology Use command df. Sample program #! /Bin/bashIP = 'hostname-I 'hostname = 'hostname' disk _ sda2 = 'df-Ph | grep/dev/s

Of course we want to share some of the highlights. upload them to your FTP space! It is convenient for friends to download and enjoy. However, these blockbusters are often "bloated", while FTP space is "Limited". Over time, it is likely to be "broken.Of course you don't want this to happen to you, so monitor the remaining number of FTP space! In case of insufficient space, immediately give a warning. The "performance monitoring" function provided by W

There's a lot of difference on the web about these three. But the personal experiment has something to do with what they write. Write the individual's understanding for everyone to make bricks.Http://www.cnblogs.com/bile/archive/2013/01/08/2850712.htmlThis article wrote a lot, on the internet a lot of people reproduced. But personal testing does not agree.The difference between lock and monitorFirst, the bottom of lock itself is monitor to achieve, so

ArticleDirectory Performance Monitor Use Performance Monitor: view the CPU usage of QQ Tip: Modify the curve color Windows self-contained Performance Monitor is a very useful tool. It provides many parameters for me to viewProgramPerformance. Today, let's look at the CPU usage of a process to explain how to use this tool. The demo system uses win7 as

ArticleDirectory How to monitor activemq Third-party tools How to monitor activemq how to monitor activemq In activemq 4.x, You can monitor the proxy and view which targets are used. You can use the following tools to view the activities and subscriptions associated with activemq: N jmx and JMX conso

In multi-threading, in order to keep the data consistency must be the data or access to the data function lock, in the database this is very common, but in the program because most of the program is single-threaded, so there is no need to lock, but in multi-threading, in order to maintain the synchronization of data, must be locked, Fortunately, the framework has provided us with three locking mechanisms, namely the Monitor class, the lock keyword, an

In this chapter we will discuss the effect of modifying the monitor on synchronization.1. Do not modify the monitor, sync thePackage com.ray.deepintothread.ch02.topic_24;/** * * @author Raylee * */public class Synchofstaticinnerclass {public stat IC void Main (string[] args) {thread thread = new Thread (new Runnable () {public void run () {Myservice.updatea ()}}); Thread.Start (); Thread thread2 = new Threa

static class Monitor {Static long start = 0;Public static void start (){Start = System. currentTimeMillis ();}Public static void end (){Long end = System. currentTimeMillis ();System. out. println ("execute method use time:" + (end-start ));}}Public static void main (String [] args) throws IOException, IllegalArgumentException, SecurityException, IllegalAccessException, InvocationTargetException {ClassReader cr = new ClassReader (Foo. class. getName

Tags: How to monitor server parameters with shell scripts and send email notifications Description: This script is installed on the CentOS operating system First, the monitoring script is as follows vim /root/script/systemmonitor.sh #! / bin / bash #Monitor the system load and the number of CPU, memory, hard disk, and logged-in users. If the alert value is exceeded, an email alert will be sent. #Extrac

Resource Manager and Resource Monitor are not the same program The Task manager's process should be taskmgr.exe and the Resource Monitor's process is perfmon.exe this also means that we can open it directly in the run window even if we don't open Task Manager After you open the Resource monitor, we'll see a screen like this The Resource