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(1). DescriptionThis example demonstrates how to use the lock, interlocked, and monitor classes to perform thread-critical operations (mutex)(2). CodeUsing system;Using system. Threading;Using system. collections; Namespace locks _ implement mutex operations in the critical section _{// Delegate Declaration (function signature)Delegate string mymethoddelegate (); Class myclass{Private Static arraylist arrlist = new arraylist ();Private Static int I =

. Messages are sent to the primary service through a queue. If the data center is the same, it is better to write the Nagios plug-in. In this way, unified management is required. You only need to write the plug-in. If the data center is distributed, you can consider writing some scripts for message transmission between Nagios. writing your own code is not time-consuming and difficult to manage. However, collectD comes with a variety of plug-ins, such as system CPU disk utilization, MySQL, nginx,

Thread: A thread is an independent execution unit of a process. Each process has a main thread, except that the main thread can contain other threads. The significance of multithreading: multithreading helps improve the overall responsiveness of the program and improve the CPU efficiency. Multi-threaded application domains are quite unstable because multiple threads can run shared functional modules at the same time. To protect the application's resources from being destroyed, three locking mech

Linux system monitoring tools, such as Inotify-sync (file system security monitoring software), Glances (Resource monitoring tool), are currently in use in the Python language, Linux The system administrator can write a simple and practical script to monitor the Linux server according to the specific situation of the server he uses. This article describes the use of Python scripting to implement a monitoring script for the Linux server CPU memory netw

I have created a alert in performance Monitor (Windows Server R2) This should be triggered whenever \processor (_tota L) \% Processor time is Above (a small value, just to guarantee, the condition for sending the alert was always met). You can see the Alert Task properties in the image.In addition, I has also created a new task in the task Scheduler that would run whether the user is logged on or not, and It'll run with highest privileges. The trigger

Can the debug debugging toolbar of yii2 only monitor ajax requests? for example, if a form I submit is an ajax request, the server returns json data to me after a series of operations, including database queries. I want to view the SQL statement operated by this ajax request through the debug toolbar. what should I do if I encounter an error? can the debug debugging toolbar of yii2 only monitor ajax request

Although the Linux operating system is much more stable than the Windows operating system. However, this stability is relative. That is to say, the Linux operating system may also get angry. In some cases, the system's resource usage (including CPU or memory) may reach more than 90%. To this end, the system administrator still needs to monitor the usage of system resources when necessary. Today, I will introduce how to

There are many ways to monitor ASP. NET applications. What is the simplest method? The simplest method I have found is to Monitor the Request Execution Time parameter of ASP. NET Applications in the Windows performance Monitor. Explanation of Request Execution Time on Microsoft Website: This counter shows the time, in milliseconds, that it takes to render the

MMS can also be monitored by server hardware. By default, data cannot be collected. You need to install munin-node to collect hardware statistics. Nodataavailable is found when you click Hardware. : Use munin-node to monitor hardware munin-node Project address: munin-monitoring.orgmunin.readthedo MMS can also be monitored by server hardware. By default, data cannot be collected. You need to install munin-node to collect hardware statistics. No data av

? Eagledba nornornornor( Norelatedposts). Original address: required skills of ORACLEDBA-use the OSWatcher (OSWBB) tool to monitor system performance load. Thank you for sharing it. ? Oracle dba's essential skills: Use the oswatchertool to monitor and load No related posts. Original address: oracle dba's essential skills-use the OSWatcher (OSWBB) tool to monitor

A technology-savvy operationLinks: https://www.zhihu.com/question/21073555/answer/106131463Source: KnowCopyright belongs to the author. Commercial reprint please contact the author for authorization, non-commercial reprint please specify the source.If it is a start-up company, the size of the machine and the flow of work are not so complicated. Operation and maintenance monitoring and alarm, all use Zabbix and some alarm aggregation services.First of all, our company how to use Zabbix monitoring

()) {SYSTEM.OUT.PRINTLN ("Directory does not exist");} else {file[] files = file.listfiles ();for (int i = 0; i if (Files[i].isfile ()) {if (Files[i].getname (). EndsWith (". jpg")) {List.add (Files[i].getname ());}}}}return list;}}Package Cn.bocai.pc.FileMonitorMethod;Import Org.apache.commons.io.monitor.FileAlterationMonitor;Import Org.apache.commons.io.monitor.FileAlterationObserver; /*** Monitor class.**/public class FileMonitor { Filealterationm

Zabbix pre-defined some key in the template, but the usual situation does not meet our needs. Fortunately, Zabbix provides a way to customize the key, so we have the flexibility to monitor the various data we want to monitor. Defining a configuration fileThe zabbix-agent configuration file path installed through Yum is/etc/zabbix/zabbix_agentd.conf.Around 255 lines of this file, we can find the following co

We monitored the SharePoint ontology in the previous section, and this section provides comprehensive monitoring of the IIS services that the SharePoint site service relies on.IIS is the Internet Information Services Internet Information Service, not only for SharePoint Products, but also for Web services in other Microsoft products, based on IIS services. such as the Web console for scom, or even Microsoft, such as Exchange 2013, has abandoned its traditional Exchange Management Console (EMC) a

Will turning on performance Monitor affect server performance?On a production server, after running for a period of time, performance the resources consumed by monitor in the task ManagementCite the SQL Server 2012 implementation and management guidelines to explain my doubts:The default performance monitor is used to real-time the detection system, and in real-w

Zabbix using JMX to monitor Tomcat JDK Environment Deployment Zabbix compilation options Modifying the Zabbix configuration file Restart Zabbix Tomcat Side Change configuration file Download the appropriate monitor JMX jar package Zabbix Web page Monitoring System environment Zabbix_server [[emailprotected]_Server_56 ~]# cat /etc/redhat-release CentOS Linu

$watch Simple to use$watch is a scope function that listens for model changes and notifies you when the part of your model changes.$watch (watchexpression, Listener, objectequality);The description of each parameter is as follows: Watchexpression: The Listener object, which can be a angular expression such as ' name ', or function such as functions () {return $scope. Name}. Listener: The function or expression that will be called when watchexpression changes, it receives 3 parameters: N

Linux---> Monitor JVM ToolsShkingShkingPublish time: 2013/10/10 01:27 read: 2642 favorites: 26 Likes: 1 comments: 0JDK built-in tools useJPS (Java Virtual machine Process Status Tool)View all JVM processes, including process IDs, process-initiated paths, and so on.Jstack (Java Stack Trace)① observe the current state of all threads in the JVM and the current thread status.The ② system crashed? If a Java program crashes generating a core file, the Jstac

1. PrefaceMultithreaded programming, we not only want to be able to achieve a logical sequencing between two threads, but also want to two unrelated threads when accessing the same resource, while only one thread can operate on the resources, otherwise there will be unpredictable results.For example, there are two threads need to add 1 to the same counter, we want the result is the counter finally add 2, but may also get to this counter, the first thread to the counter plus 1, but the second thr

Before I was planning to combine virtual machine development before and after the end of the win, today carefully thought about, not very reliable, back-end debugging is too difficult. The possible solution is the way NetBeans is developed remotely, and I've tried it before and it's a lot of trouble to debug. So decisive download a ubuntu14.04 Kyllin LTS, the maintenance team will support five years, in general, this version is still good. During the installation, there were also some minor prob