I recently used Alibaba's Dubbo [BaiduProgramAfter a lot of optimization work, the jvisualvm in JDK did a lot of work in this process, but it also gave me some misunderstanding.
Let's talk about its merits:
First, you can help me monitor the number of threads and promptly discover threads that are not normally terminated. Because Dubbo is configured with a 800 thread pool, the number of daemon threads in my current active thread is 826, and the to
Progress monitor -- ProgressMonitorInputStream,Progress monitor -- ProgressMonitorInputStream
ProgressMonitorInputStream
You can create a progress monitor to monitor the progress of reading input streams. If it takes a while, ProgressDialog will pop up to notify the user. If you click the Cancel button, InterruptedIOEx
1, monitor the shell script code of the HTTPD status code.#!/bin/sh#site:www.jquerycn.cn#website[0]=www.jquerycn.cn/chuzu/'#网站1mobile[0]='13141200000'#对应网站1 Mobile phone number website[1]=www.jquerycn.cn/chushou/'#同上2mobile[1]='13141200000'#同上2 # When the site is large, consider storing it as a file or reading the length from the database=${#website [@]} #获取网站总数量 for((i=0; i)) #循环执行 DoStatus=$ (Curl-i-MTen-o/dev/NULL-s-w%{http_code} ${website[$i]}) #C
/wKiom1YEqR_DsLnqAAEKeZEJDqs390.jpg "title=" Qq20150925095517.png "alt=" Wkiom1yeqr_dslnqaaekezejdqs390.jpg "/>6. Test the client, start the website service on Web1 and WEB2, and modify the default page, Web1 page for 1.1.1.10,WEB2 is 1.1.1.20.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/73/B1/wKioL1YEqsnxDtT-AADJjt8ZoU8255.jpg "title=" Qq20150925100219.png "alt=" Wkiol1yeqsnxdtt-aadjjt8zou8255.jpg "/>650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/73/B4/wKiom1YEqs-R2lHl
Network Monitor 3.4 is a free grab kit from Microsoft that assists administrators in crawling client or server-side access and interaction information to help troubleshoot problems.This article shares how this tool gets, installs, and grabs the package.First of all, this tool can be downloaded from Microsoft's website, as follows.Download Microsoft Network Monitor 3.4 (archive) from official Microsoft Downl
Nrpe is based on the correct installation of Nagios-plugins, nagios-plugins installation details, please go to:[Nagios monitoring Nagios-plugins installation]http://4709096.blog.51cto.com/4699096/17022241. Dependency packet Detection#rpm-Q xinetd openssl-devel#yum Install xinetd Openssl-devel2. Compiling the installationNrpe relies on nagios-plugins, so it needs to be installed first.# TAR-ZXVF Nrpe-2.12.tar.gz# CD Nrpe-2.12.tar.gz#./configure \--prefix=/usr/local/nagios \--with-nrpe-user=nagios
In Android Studio, open the following error when Android Device monitor times (android-sdk\tools\lib\monitor-x86_64\configuration\1491536029820. LOG), turn off Android studio and open it in admin modeThis issue can be resolved after Android studio. ! SESSION 2017-04-07 11:33:49.545-----------------------------------------------eclipse.buildid= Unknownjava.version=1.8.0_112-releasejava.vendor=jetbrains S.r.o
Previously we used the lock shortcut to enable multi-threaded sharing of the same resource. In C #, lock is actually a simplified version of the monitor operation.Use monitor below to complete the previous lock function, you can do a comparison here:private static void Multithreadsynergicwithmonitor () {int[] array = new INT[3]; Thread producer = new Thread (() = {int count = 0;
The previous section describes the installation process for the Nagios monitoring service in a Linux environment, and this section details how to use some of the configuration files for the Nagios services that have already been installed and how to monitor local related services. If you want to complete monitoring of a host Nagios as the main program is essential, but only as long as Nagios is not complete, the following brief introduction of Nagios'
In the basic concept of Android performance optimization (a)---the four references to Java, speaking of Gcroot, the second memory monitor to detect the leak only said Menmery monitor use, this blog talk about mat to look for memory leaks, In contrast, theMemory Monitor is not as strong as the mat, but before starting the introduction of the mat, the last two ques
Write in front:This article describes the identification of the elements of the tools and elements of the positioning method, the tools to identify elements are mainly uiautomator and monitor, as well as Appium Inspector (small series under the windows in the 1.7.0 version can be used, 1.4.16 version is not available), This series of tutorials with the appium1.4.16 this article, it is not introduced Appium Inspector.First, the common identification el
you can recommend it here.)Summary: We can hear the home button click, of course, we know the app is in the foreground or backstage. But after all, this program is based on the premise that the official does not support, and home button monitoring in many devices will have compatibility issues, so we do not recommend this.Scenario Three: Use Activitylifecyclecallbacks to monitor the life cycle of all activityBy listening to all the activity's onstart
Erlang was the first language to be developed for telecom products, and because of that, it decided her strict requirements for error handling. In addition to providing syntax such as Exception,try catch, Erlang also supports the mechanism of link and monitor two monitoring processes so that all processes can be joined together to form a whole. When a process exits with an error, the other process receives a message notification that the process exits
Analysis toolsA free tool for analyzing AIX and Linux performance, the Nmon tool helps to display all of the important performance tuning information on one screen and dynamically update it. This efficient tool can work on any dumb screen, Telnet session, or even dial-up lines. In addition, it does not consume a lot of CPU cycles, usually less than 2%. On the updated computer, its CPU utilization will be less than 1%. Use a dumb screen to display the data on the screen and update it every two se
Nmon (named Nigel's Monitor) is a computer performance system monitoring tool developed by IBM employees Nigel Griffiths for AIX and Linux systems. Nmon can display the operating system statistics on the screen or stored in a data file to help understand the use of computer resources, adjust direction and system bottlenecks. This system benchmark tool only needs to use one command to get a lot of important performance data. With Nmon, you can easily
Nethogs is a small, free open source command-line tool used to count network bandwidth usage in real time by process or program.For use similar to "repo tool", "Depot_tools" and other tools checkout source code is very useful, you can view the current download speed information, so you do not blindly wait.Installation under Ubuntu system
sudo apt-get install Nethogs
How to use
Nethogs [-d] [-h] [-P] [-t] [-v] [device (s)]
THE-D switch delay for the refresh r
Property Monitor1. Property Monitor Function Property Observer control and response property changes , each time the property is set to the value of the Call Property observer , even if the new value and the old value of the same time is no exception. Property observers can be added by overloading the property's methods for who can inherit ( including storage properties and computed properties ) Note: You do not need to add a property o
runs on Zabbix server.
The userparameter_*.conf file is located on the Zabbix_agentd side.
Nginx_status.sh and php_fpm_status.sh are located on the Zabbix_agentd side.
Zabbix-get after-s specifies the IP for the zabbix-agentd of the listening IP.
Viii. Configure the appropriate template on the Zabbix serverThe template here contains a series of items, trigger, graphs, and so on that are monitored for nginx status and PHP-FPM status. For the new content to
If you want to monitor the messages sent and received by one or more mailboxes, you can also say that you are backing up one or more mailboxes to send and receive messages. is to send and receive messages from one or more mailboxes, and copy them to the specified mailbox. For example, Mail sent to and from the aaa@domain.com and bbb@domain.com mailboxes is copied to the bak@domain.com mailbox.
Three admin backgrounds can be set when set. Screenshot b
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