Hadoop standalone installation:1. Install JDKInstall JDK with below command:sudo apt-get install sun-java6-jdkConfigure Java environment, open /etc/profile, add below contents:export JAVA_HOME = （Java installation directory）export CLASSPATH =".:$JAVA_HOME/lib:$CLASSPATH"export PATH = "$JAVA_HOME/:PATH"Verify installation of JavaType java --version, if it outputs Java version information, then Java is successfully installed.2. Install SSHInstall SSH with below command:sudo apt-get install sshConfigure SSH to login to local PC without password:ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsaP...

Samsung announces Galaxy S III mini today, compared to Galaxy S III, the mini version has some changes in screen size and configurations.Below are the detail configurations of Galaxy S III mini:4-inch screen800 × 480 resolution5-megapixel primary camera, VGA front camera1GHz dual-core processorAndroid 4.1 operating systemSupport the Samsung S Voice Personal Assistant, NFC and S Beam transmission function1GB RAM, two versions with 8GB and 16GB memory, expandable to 32GB with microSD cardSamsung doesn't unveril the price and sale date for Galaxy S III mini.Actually I don't understand why S...