87 lines
2.8 KiB
Bash
87 lines
2.8 KiB
Bash
#!/bin/bash
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# devstack/hdfs-functions.sh
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# Functions to control the installation and configuration of the HDFS
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# Installs the requested version of hdfs, controled by 'HADOOP_VERSION'
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# Triggered from devstack/plugin.sh as part of devstack "install"
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function install_hdfs {
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# install nessary packages
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install_package openssh-server expect
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# Set ssh with no password
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if [[ ! -e ~/.ssh/id_rsa.pub ]]; then
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ssh-keygen -q -N '' -t rsa -f ~/.ssh/id_rsa
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fi
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cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
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if [[ -z $JAVA_HOME ]]; then
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install_package openjdk-7-jre openjdk-7-jdk
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# Export JAVA_HOME
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sed -i '1 s/^/export JAVA_HOME=\/usr\/lib\/jvm\/java-7-openjdk-amd64\n/' ~/.bashrc
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source ~/.bashrc
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fi
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### download hadoop
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if [[ ! -e $HDFS_PLUGIN_DIR/hadoop-$HADOOP_VERSION.tar.gz ]]; then
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wget -P $HDFS_PLUGIN_DIR/ http://archive.apache.org/dist/hadoop/core/hadoop-$HADOOP_VERSION/hadoop-$HADOOP_VERSION.tar.gz
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fi
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# untar the package
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tar -zxf $HDFS_PLUGIN_DIR/hadoop-$HADOOP_VERSION.tar.gz -C $HDFS_PLUGIN_DIR/
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mv $HDFS_PLUGIN_DIR/hadoop-$HADOOP_VERSION $HDFS_PLUGIN_DIR/hadoop
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}
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# configure_hdfs() - Set config files, create data dirs, etc
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function configure_hdfs {
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# edit core-site.xml & hdfs-site.xml
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cp $HDFS_PLUGIN_LIB_DIR/template/* $HDFS_PLUGIN_HADOOP_DIR/etc/hadoop/
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path=${HDFS_PLUGIN_DIR//\//__slashplaceholder__}
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sed -i "s/__PLACEHOLDER__/$path/g" $HDFS_PLUGIN_HADOOP_DIR/etc/hadoop/hdfs-site.xml
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sed -i 's/__slashplaceholder__/\//g' $HDFS_PLUGIN_HADOOP_DIR/etc/hadoop/hdfs-site.xml
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# formate namenode
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$HDFS_PLUGIN_HADOOP_DIR/bin/hdfs namenode -format
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}
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# start_hdfs() - Start running processes
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function start_hdfs {
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# start
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$HDFS_PLUGIN_LIB_DIR/start_hdfs.sh $HDFS_PLUGIN_HADOOP_DIR/sbin/start-dfs.sh
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# add hadoop/bin to PATH
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ori_path=$PATH:$HDFS_PLUGIN_HADOOP_DIR/bin
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no_slash_path=${ori_path//\//__slashplaceholder__}
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new_path=${no_slash_path//\:/__colonplaceholder__}
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sed -i "1 s/^/PATH=${new_path}\n/" ~/.bashrc
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sed -i 's/__slashplaceholder__/\//g' ~/.bashrc
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sed -i 's/__colonplaceholder__/\:/g' ~/.bashrc
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source ~/.bashrc
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}
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# test_hdfs() - Testing HDFS
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function test_hdfs {
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hdfs fsck /
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}
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# Stop running hdfs service
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# Triggered from devstack/plugin.sh as part of devstack "unstack"
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function stop_hdfs {
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if [[ -d $HDFS_PLUGIN_HADOOP_DIR ]]; then
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$HDFS_PLUGIN_HADOOP_DIR/sbin/stop-dfs.sh
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rm -rf $HDFS_PLUGIN_HADOOP_DIR
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fi
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line=`grep -rn "export PATH=.*hadoop/bin" ~/.bashrc | awk -F: '{print $1}'`
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if [[ -n $line ]]; then
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sed -i "${line}d" ~/.bashrc
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fi
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}
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# Cleanup hdfs
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# Triggered from devstack/plugin.sh as part of devstack "clean"
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function cleanup_hdfs {
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rm -f $HDFS_PLUGIN_DIR/hadoop-$HADOOP_VERSION.tar.gz
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}
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