composable infrastructure

/rc.d/init.d/nagios status > View stateNagios (PID 3883) is running ...7. Visit the Monitoring Web page[[Email protected] Desktop]# Firefox http://192.168.4.21/nagios~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"Here's the main page"Iii. Configuring Nagios Services(the default is to monitor the machine without any configuration)Services monitoring InformationCurrent Load CPU LoadCurrent users logged into the systemHTTP Web Service Run statusRoot Partition root partitionSSH Monitoring SSH ServiceSwap Usa

, file random modification a file can have only one writer, only support append.Data form of 3.HDFSThe file is cut into a fixed-size block, the default block size is 64MB, the size of the block can be configured, if the file size is less than 64MB, it is stored separately into a block. A file storage method is divided into blocks by size, stored on different nodes, with three replicas per block by default.HDFs Data Write Process:　　HDFs Data Read process:　　4.MapReduce: Google's MapReduce open sou

Ethernet ConnectionSuch as.Practice:1. View NIC hardware information via LSPCI command2, view network card information through Ifconfig eth03. Enable the NIC via Ifup eth0Configure Network InformationPractice:Network-related configuration filesPractice:1. View network card configuration file2. View the DNS configuration file3. View Host name Configuration4. View static hostname configurationNetwork Test commandsModify Host NamePractice: Change the current hostname: Linuxcast.net to Training.linu

First, the principle of environment variable configurationConfiguration environment variable Path if we compile and run according to the above, it would be too much trouble, so here we can configure the environment variable path 1, the steps to configure the environment variableThen you can see the effect directly.If the DOS says there is no javac or Java command exists, it is that your path does not have a bin path configured for the JDK or a new boot DOSThe process diagram is roughly as follow

Yarn Add Vue Yarn Add Webpack Yarn Add Webpack-cli Yarn Add Html-webpack-plugin Yarn Add Webpack-dev-server Create build, src folder Create a index.html fileDOCTYPE HTML>HTMLLang= "en">Head> MetaCharSet= "UTF-8"> title>Vuetitle>Head>Body> DivID= "App">Div>Body>HTML> Create src/index.js file import Vue from ' vue ' new Vue ({el: ' #app ' return H (' div ', ' Hello world! ' Create Build/webpack.dev.conf.js file const Htmlwebpackplugin = require (' html-webpack-pl

introduced by Json2.js, and Json2.js has a very bad place to add a Tojson method for a series of native types, causing the for in loop to determine if an error is an empty object. jquery was forced to do a isemptydataobject method of processing. jquery's data caching system was originally differentiated for event System services, and later it was the infrastructure of many internal modules. In other words, it stores many of the framework user variab

2.0 is available, so this is ready to start writing. This series is where I started my own background API infrastructure based on the ASP.net core 2.0 Web API, and it's estimated to score several times to finish. If there is anything wrong, please point out!!, thank you. To Create a project: 1. Select ASP.net core Web application. 2. Select. NET core, ASP.net core 2.0, and then select empty (bec

system and is the execution engine for the Microsoft.NET platform. The Microsoft.NET framework includes a set of class libraries that can be used in any programming language to make it easier for programmers to build web-based applications and services. On top of this are many application templates that provide advanced components and services for developing network applications and services. The vastness of the Microsoft.NET platform is not the thousands of words that can be clarified here, an

) statements, Sequential writes, and automatic switching after full write. Only archive mode can recover data, and non-archive mode can only restore current data.----View Redo log file informationArchive log list;Select * from V$log;----switch access to physical files (not used in normal work)Alter system Switch Logfiel;Select * from V$logfile;----adding redo log filesLinux:alter database Add logfile '/database/. /redolog09.rdo ' size 2g autoextend off;Windows:alter Database Add Logfie(' g:oracl

an optional buffer. It can be configured with administrative authority as needed. It can provide a large area for the object database backup and recovery operations.Program Global: (PGA) is an area of memory used by Oracle, which can only be stored by one process at a time for data and control, for storing session variables and internal arrays, etc., in private service mode (dedicated server configuration), Each request that processes only one user process. Under Shared server configuration, a

management, in order to reduce unnecessary errors Use the sudo command to configure the use command permissions for the associated userUser name can be logged in the terminal specific commands (using absolute path)YUMW all= (All)/usr/sbin/useraddThe specific path to the command can be used5: Modify the default configuration of the SSH servicein general production environment after the installation of the system, operators will use the client tools to log on the system for related operations, to

[[email protected] ~]# Yum install-y compat-libstdc++*[Email protected] ~]# yum-y install binutils elfutils-libelf elfutils-libelf-devel elfutils-libelf-devel-static gcc gcc-c++ glibc glibc-common glibc-devel glibc-headers ksh libaio libaio-devel libstdc++ libstdc++-devel make Sysstat UnixODBC Unixodbc-devel [[email protected] ~]# Yum install-y compat-libstdc++*[Email protected] ~]# Cvuqdisk_grp=oinstall; [Email protected] ~]# export CVUQDISK_GRP [[ email protected] ~]# RPM-IVH cvuqdisk-1.0.9

Tags: tutorial set Test skills Virtualization ATI Introduction Operations Services1th Stage Basic Course -01 vmwareworkstation Virtual machine Use tutorialSuitable for objectsLearning systems and network IT courses require you to be able to build enterprise networks and server learning and experimentation environments on physical machines, and the skilled use of virtual machines is essential for basic IT skills.Course ObjectivesThis course gives you a detailed introduction to the learning conven

When virtualization emerged as a means of reducing costs and increasing the efficiency of data centers, the technology was abandoned as a competitive tool. Virtualization not only provides real benefits, such as cost savings, improved server performance and minimal storage requirements, but also provides the necessary flexibility for network administrators to manage data center environments. In this article, TechTarget, a special author of China, George Crump explains the flexibility of

8.Linux Network infrastructure configuration • In Linux , the Ethernet interface is named eth0,eth1 , etc.,0, 1 represents the NIC number,View• View the NIC hardware information through LSPCI, if it is a USB card, you can run lsusb,· ifconfig-a View all interfaces, ifconfig eth0 View specific interfaces,· ifup eth0 start the interface, Ifdown eth0 disable the interface,• Configuration: run Setup To configure the NIC, • NIC configuration file /etc/sys

achieve a specific function of the components, the implementation of the function is pure hardware, but it is also available to the Linux operating system, so need a kernel exists in the infrastructure to drive the FPGA to export to the user.This driver component is xillybus. Xillybus users must put the IP core of the Xillybus module into the FPGA hardware in the FPGA, the kernel will run a Xillybus data forwarding module, exported to user space for

Infrastructure architecture Service registry: Eureka provides the service side, provides the service to register in the discovery function, namely in the previous section we implemented the Eureka-server Service provider: An application that provides services, which can be springboot applications, or other technology platforms, and that follow Eureka communication mechanisms. It will The services you provide are registered with Eurek

The following are the practical aspects of the front-end project modularity, including the following: Build NPM private Warehouse management source and dependence; Use Webpack to package the infrastructure code; Writing a reliable class library using TypeScript (in implementation) This article is about the 2nd part of the front-end project templatingPresent situationThe actual project is far more complex than the mygreeting used

*) Basic concept:1. Application (Application)2. ODBC Driver Manager (ODBC Driver manager)Responsible for managing communication between applications and drivers, including parsing DSNs (data source names, ODBC data source names configured in the Odbc.ini file), loading and unloading drivers, processing ODBC calls, and passing them to drivers.3. ODBC driver (ODBC Driver)Implements the functionality provided by the ODBC API, which handles ODBC function calls, submits SQL requests to the specific d

common Development infrastructure build step record This is mainly in the Docker environment to record the development of some of the methods and steps to develop infrastructure, easy to refer to the Nexus Service Gitlab service zookeeper cluster Kafka cluster services API Interface Management Service [Eolinker] bug management platform [Zentao Zen Road] dubbo-admin Background Management Service Docker Mod