Requirements
- Java 1.6.x from Sun.
- Hadoop 0.19.x and Hbase 0.19.x (Hama trunk will only run on this version of Hadoop and Hbase.)
[http://wiki.apache.org/hadoop/GettingStartedWithHadoop Getting Started with Hadoop]
[http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#overview_description Getting Started with Hbase]
- SSH must be installed.
- You should indeed increase your
hbase.regionserver.lease.period
to at least 4 minutes.
Run Hama
0. Check out source code from SVN, you must build using ant, as described below. $ svn checkout https://svn.apache.org/repos/asf/incubator/hama/trunk ${HAMA_HOME} ${HAMA_HOME}/ant clean package 1. Modify ${HAMA_HOME}/conf/hama-env.sh. Make sure that $HADOOP_CONF_DIR and $HBASE_CONF_DIR are set to the location of your hadoop+hbase cluster' configurations file. And uncomment line "# export HAMA_CLASSPATH=$HADOOP_CONF_DIR:$HBASE_CONF_DIR" 2. cp ${HAMA_HOME}/build/hama-0.1.0-*.jar ${HAMA_HOME} Make sure that hama-x.x.x-{,examples}.jar are placed in ${HAMA_HOME} 3. ${HAMA_HOME}/bin/hama examples ex) ${HAMA_HOME}/bin/hama examples rand rand [-m maps] [-r reduces] <rows> <columns> <density> <matrix_name> ex) rand -m 10 -r 10 2000 2000 30.5% matrixA 4. ${HAMA_HOME}/bin/hama shell Now, you are in the hama shell as below. hama > you can enjoy hama's power in hama shell! For examples: hama > a = Matrix.Random 10 10 // generate a random matrix(10,10) hama > b = Matrix.Random 10 10 // generate a random matrix(10,10) hama > c = Matrix.Random 10 20 // generate a random matrix(10,20) hama > d = ( a + b ) * c // do matrix computation
You can find more detais about Hama Shell in [http://wiki.apache.org/hama/Shell].