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Hadoop_hdfs_home=$HADOOP _install -Export Yarn_home=$HADOOP _installWuyiExport hadoop_common_lib_native_dir= $HADOOP _install/lib/native theExport hadoop_opts="-djava.library.path= $HADOOP _install/lib" - #HADOOP VARIABLES END Wu -#--------------------------------------------------------------# AboutSOURCE ~/.BASHRC # MakeThe environment variables come into effect $ - # #configure Hadoop - sudo VI/usr/local/hadoop-2.7.1/etc/hadoop/hadoop-Env.SH#edit hadoop-Env.SH -? Java_home # (inchVimLocate

_home/bin Make/etc/profile effective Source/etc/profile View installation Status Mvn-version[[email protected] ~]# mvn-versionapache Maven 3.2.2 (45f7c06d68e745d05611f7fd14efb6594181933e;2014-06-17t21:51:42+08:00) Maven Home:/opt/apache-maven-3.2.2java version:1.8.0_60, Vendor:oracle CorporationJava Home:/opt/jdk1.8.0_60/jredefault LOCALE:ZH_CN, Platform Encoding:gb18030os name: "Linux", Version: "3.10.0-229.14.1." El7.x86_64 ", Arch:" AMD64 ", Family:" Unix " 6. Install Ant Download apache-ant

Installing the JDK in a 1.ubantu environmentMy JDK is installed in the/HOME/FUQIANG/JAVA/JVM directory, Scala,spark is in this directory, mainly the settings of the JDK environment variable$ sudo gedit/etc/profileAt the very end of the document, addExport java_home=/home/fuqiang/java/jvm/jdk1.7.0_79Export classpath=.: $JAVA _home/lib: $JAVA _home/jre/lib: $CLASSPATHExport path= $JAVA _home/bin: $JAVA _home/jre/bin: $PATHJDK environment variable configuration completedConsole input$ source/etc/pr

sbin/start-yarn.sh 3. VerificationAfter you start yarn, enter http://localhost:8088/ You can see the following interfaceNext article hadoop2.7 run WordCountEncounter problemsQuestion 1: error:could not find or Load main class Org.apache.hadoop.hdfs.server.namenode.NameNode Workaround:Add in ~/hadoop-2.7.0/etc/hadoop/hadoop-env.sh Export hadoop_common_home=~/hadoop-2.7.0 Restart takes effectQuestion 2:Formatted Java_home not found B

, Add at the end: Export Java_home= ....e xport hadoop_home= ...7. Enter the conf directory under the Hive installation directory , according to hive-default.xml.template Copy out two files : C P hive-default.xml.template hive-default.xmlC P hive-default.xml.template hive-site.xml8. Configure hive-site.xml: Hive.metastore.warehouse.dir Hive.exec.scratchdir Javax.jdo.option.ConnectionURL Javax.jdo.option.ConnectionDriverName Javax.jdo.option.ConnectionUserName Javax.jdo.option.Connectio

ROCKETMQ is the Alibaba open source message queue.This article is using the open source version v3.18System: centos6.x Minimized installationRequired Packages:Jdk-7u67-linux-x64.tar.gzAlibaba-rocketmq-3.1.8.tar.gzStart installation#tarxvfjdk-7u67-linux-x64.tar.gz-C/opt/#tarxvfalibaba-rocketmq-3.1.8.tar.gz-C/opt/#ln-s/opt/jdk1.7.0_67/opt/jdkConfiguring Environment variablesLast added in/etc/profileexportJAVA_HOME=/opt/jdkexportROCKETMQ_HOME=/opt/alibaba-rocketmqexportPATH=$JAVA_HOME/bin:$ROCKETMQ

(consumerconfig); Filters for TopicWhitelist Whitelist = new Whitelist ("test");List if (partitions==null) {System.out.println ("empty!");TimeUnit.SECONDS.sleep (1);} Consumer NewsFor (kafkastream Consumeriteratorwhile (Iterator.hasnext ()) {MessageandmetadataSystem.out.println ("Partiton:" + next.partition ());System.out.println ("offset:" + next.offset ());System.out.println ("received message:" + New String (Next.message (), "Utf-8"));}}}}Executes the main method, always reported disconnect

Management (InMain.txt)Field name and order4, Purchase details management (InDetail.txt)Field name and order5. Sales Management (OutMain.txt)Field name and order6. Sales Detail Management (OutDetail.txt)Field name and order7. Inventory Management (Stock.txt)Field name and orderSubcontracting of projectsFirst layer: According to the module sub-User module, book, Purchase (in), Sales (out), Inventory (store)Second layer: According to the three-layer modePresentation layer (UI), logical layer (bus

Ext.: http://dockone.io/article/950OverviewThis article is mainly about how to install Kubernetes on the Ubuntu system, there are many related articles on the network, the feeling is not very clear, here I will own installation practice to provide you with a guide, easy to build kubernetes environment, rapid development.Installation Preparation1 Installing DockerCurl-s https://get.docker.io/ubuntu/| sudo sh2 Installing ETCDPlease download Etcd 2.2.2 from Baidu Cloud Http://pan.baidu.com/s/1eQKaT

Download unzip to/usr/local/FlumeConfiguring Environment variablesExport flume_home=/usr/local/flumeexport flume_conf_dir= $FLUME _home/confexport PATH=.: $PATH:: $ Flume_home/binConfigure flume-env.sh to add JDK paths in confExport JAVA_HOME=/USR/LIB/JVM/JAVA-8-OPENJDK-AMD64Flume-ng versionVerify that the installation is successful[Email protected]:~# flume-ng versionflume 1.7. 0Source code Repository:https:// git-wip-us.apache.org/repos/asf/20:51:10 cest fromsource with checksum 0d21b3ffdc55a

://msmirrors.blob.core.chinacloudapi.cn/single-lamp/install_single_lamp_SLES.shThen execute the following command. Note: Mysqlpassword refers to your MySQL root password, set according to your specific situation, insertvalue refers to the value you want to write to the MySQL test table, this value is accessed http://yourwebsite/ Mysql.php will show up.For example, if you run sudo bash install_single_lamp_sles.sh s3cret Jack then S3cret is your MySQL root password, and Jack is writing to the valu

implement is as follows:New 2 ); Layoutmanager.setspansizelookup (new gridlayoutmanager.spansizelookup () { @Override publicint getspansize (int position) { return0 21; } }); Ecyclerview.setlayoutmanager (LayoutManager); The key code is on the top,Layoutmanager.setspansizelookup This code is a cross-column number that sets the item corresponding to the position location, such as

Process 4 of are on server150 Process 5 of are on server150 Process 7 of are on server150 Process 2 of are on server150 Process 3 of are on server150 Process 6 of are on server150 Process 8 of are on server150 Pi is approximately 3.1415926544231256, Error is 0.0000000008333325Wall clock time = 0.020644 If we want to compile the file now: Execute under/home/houqingdong: Mpicc-o Hello hello.c will be reminded:-BASH:MPICC command not found this is because we ha

tar -zxvf apache-storm-0.9 . 6 . tar .gz# set environment variable # step 1: Edit the profile directory vim /etc/profile# Step 2: Append environment variables to the profile directory export storm_home =/home/linux/software/apache-storm-. 6 = $PATH: $STORM _home/ bin# step 3:vim Command mode, exit and save profile:wq# step 4:profile file takes effect source /etc/profile Setting up a Storm profile (Storm.yaml)#设置zookeeper storm.zookeeper.servers:-"127.0.0.1"#设置nimbus nimbus.host:"127.0.0.1

Test.cpp: Defines the entry point of the console application. #include "stdafx.h" #include Effective C + + reading notes clause 17 The Newed object is placed in a stand-alone statement with a smart pointer

Oracle stand-alone 10201 upgrate to 10205 1.Shut down the database: For Oracle RAC: $ srvctl Stop database-d db_name For single Instance: Sql> CONNECT SYS as Sysoper Enter Password:sys_password Sql> SHUTDOWN 2. Emctl Stop Dbconsole Lsnrctl stop Isqlplusctl stop 3.$ Export display=localhost:0.0 ./runinstaller 4. Start the database in the UPGRADE mode: Sql> STARTUP UPGRADE Set the system to s

I. Installation of RedisThis does not say that there are various systems on the Internet to install Redis operations,Redis InstallationIi. Creation of Sprigboot projectThis is not much to say, will not be in front of the relevant tutorial.Third, add MAVEN coordinatesIv. Writing springboot configuration filesFive, you can operate the RedisI put the cache in RedisThe relevant code is as follows:5.1 Directory Structure5.2 Analog Data5.3 Cache5.4 Turn on caching5.5 Test InterfaceSix, when the first

Public startchessjframe () {Settitle ("stand-alone version Gobang");/Set title Chessboard=new chessboard (); Container Contentpane=getcontentpane (); Contentpane.add (chessboard); Chessboard.setopaque (TRUE); Create and Add menus MenuBar =new jmenubar ()//Initialize menu bar sysmenu=new jmenu ("system");//Initialize menu//Initialize menu item Startmenuitem=new jmenuite M ("Re-start");