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- Java 1.6.x from Sun.
- Hadoop/Hama 0.19.x and 0.20.x
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Edit conflict - other version: ----
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- If you use 0.20.x, then you'll need to install the zookeeper
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- SSH must be installed.
- You should indeed increase your
hbase.regionserver.lease.periodto at least 4 minutes.
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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-0.12.0-*.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
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