Linux real-time inotify synchronization and linux inotify Synchronization
# Real-Time inotify Synchronization
1. Introduction to inotifyInotify is a powerful, refined, and asynchronous file system event monitoring mechanism. The Linux kernel has been added to inotify since 2.6.13, INOTIFY can be used to
IfstatIntroducedIfstat tool is a network interface monitoring tool, relatively simple to see network trafficInstanceDefault usage#ifstat eth0 eth1 kb/s in kb/s out kb/s in kb/s out 0.07 0.20 0.00 0.00 0.07 0.15 0.58 0.00The default ifstat does not monitor the loopback interface, and the displayed traffic Unit is KB.Monitor all network interfaces# ifstat-a lo eth0
IfstatIntroducedIfstat tool is a network interface monitoring tool, relatively simple to see network trafficInstanceDefault usage#ifstat eth0 eth1 kb/s in kb/s out kb/s in kb/s out 0.07 0.20 0.00 0.00 0.07 0.15 0.58 0.00The default ifstat does not monitor the loopback interface, and the displayed traffic Unit is KB.Monitor all network interfaces# ifstat-a lo eth0
Real-time tracking of adaptive hybrid background model Chris stauffer W. e.l grimsonbob Kuo Translation: Artificial Intelligence Laboratory of the Massachusetts Institute of Technology, Zhangye City, Ma 02139
SummaryCommon methods for real-time segmentation of dynamic regions include the background subtraction divisio
Introduction to a real-time search engine based on Twitter:tweetfeel.com
Today, the Internet has astronomical levels of information, so we are not too concerned about the lack of information, but how to organize and discover this information, which is why the search is so important reason.
As part of the search, real
have mentioned that rsync can implement triggered file synchronization, but trigger through the crontab daemon process. The synchronized data is different from the actual data, inotify can monitor various changes in the file system. When there are any changes to the file, rsync synchronization is triggered, which just solves the problem of real-time data synchro
Purpose: in order to achieve real-time synchronization, we use INotify to monitor the changes in the directory that need to be synchronized, INotify is just a module of monitoring file changes in the kernel, provides the API for monitoring file changes, and to connect this API, The Inotify-tools tool needs to be installed. Can realize the new file, delete, modify
This article describes how to install rsync and sersync in linux to implement real-time data synchronization.
I. Why should I use the Rsync + sersync architecture?
1. sersync is developed based on Inotify and is similar to Inotify-tools.
2. sersync can record changes (including adding, deleting, and modifying) in the monitored directory to the name of a specific file or directory. when rsync is used, only t
Recent work involves designing a system to monitor the status of the system in real time, such as the execution of hadoop tasks and the health of the server. This system needs to process the information generated by the object in real time and send it to the user.
This syste
, it can also save digital video to the previously built files. The practical application shows that this method can improve the efficiency of video capture and program operation, reduce the dependence on hardware, and improve the compatibility and portability of the program.
VFW's video capture function mainly includes capturing video stream to AVI file (capcapturesequence), capturing video stream to cache (Capcapturesequencenofile), capturing video stream to AVI file ( capcapturesingleframe)
and is sent using different protocols.● HTTP isAsymmetric protocolsThe client sends a request and the server responds. In RTSP, both the client and server can send requests in a stateful manner.● HTTP isStateless protocolRTSP must be in a certain state under any circumstances, so that parameters can still be set to control the media stream for a long time after the request is confirmed.● RTSP uses the ISO 10646 (UTF-8) definition instead of the ISO 8
a very inefficient way. Second, rsync can not real-time monitoring, synchronization of data, although it could be triggered by the Linux daemon process synchronization, but the two trigger action must have a time difference, which leads to server and client data may be inconsistent, not in the application of the failure to fully recover data. Based on the above
In many cases, we monitor the changes in the input box values in real time, so as to make real-time actions to guide viewers to enhance the user experience of the website.
Expected results
In many cases, we monitor the changes in
Linux Watch command-real-time monitoring of running results of commands Watch is a very useful command, basic all Linux distributions with this gadget, like the name, watch can help you monitor the results of a command, save you over and over again manually run. Immediately after the watch you want to run the command, watch will help you repeat the operation, a
Original link: http://www.656463.com/article/ZJZvIv.htm
I. OverviewA lot of data is stored on the MongoDB, need to quickly search out the target content, so build SOLR service.Another point, after using SOLR index data, you can use the data in different projects, directly to the SOLR service to send requests, return XML, JSON and other forms of content, make the use of data more flexible.The description of MongoDB and SOLR is not explained here, this article is intended to provide
Absrtact: Real-time web is becoming more and more important, and Google, Facebook and other big companies are gradually beginning to provide real-time services. Real-time web will be one of the hottest topics of the future. This a
the location of the password file
Next, install inotify-tools on the Client.
[root@Centos ~]# yum install inotify-tools -y
rpm -ql inotify-tools/usr/bin/inotifywait/usr/bin/inotifywatch
Inotifywait is used to wait for a specific event in a file or file set. It can monitor any file or directory settings and recursively monitor the entire directory tree;
Inotifywatch is used to collect statistics on the moni
Reprint: https://www.cnblogs.com/kevingrace/p/7300191.htmlGenerally speaking, as a Linux SA, it is necessary to master a specialized system monitoring tool, so as to be able to keep abreast of the utilization of system resources. The next Linux performance real-time monitoring tool,-netdata, is the real-time performanc
Google real-time search Seo and retweetsrank
Google's real-time search has attracted a lot of attention recently, and many Seo are more concerned with the ranking of real-time search. According to the introduction of the Matt Cut
C + + Distributed real-time application Framework 2.0Technical cooperation QQ Group: 436466587 Welcome to discuss ExchangePrevious: (vi): Large-scale project container transformationCopyright NOTICE: This article copyright and the technology used belong to Smartguys team all, for plagiarism, not by the consent to reprint and other acts to retain the right to legal investigation! After the release of the C
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