README

Karaf Hadoop
------------

Karaf Hadoop is an Apache Hadoop distribution ready to be deployed into an Apache Karaf instance.

It leverages the OSGi mechanisms and Karaf features.

    Installation
    ------------
You can install directly the hadoop feature:

karaf@root> feature:add-url mvn:org.apache.karaf.hadoop/apache-hadoop/1.0.3-SNAPSHOT/xml/features
karaf@root> feature:install hadoop

    Configuration
    -------------
The hadoop feature register a configuration with the PID org.apache.hadoop to configuration the hadoop node:

karaf@root> config:list "(service.pid=org.apache.hadoop)"
----------------------------------------------------------------
Pid:            org.apache.hadoop
BundleLocation: mvn:org.apache.karaf.hadoop/org.apache.karaf.hadoop.core/1.0.3-SNAPSHOT
Properties:
   dfs.replication = 1
   org.apache.karaf.features.configKey = org.apache.hadoop
   mapred.job.tracker = localhost:9001
   dfs.http.address = localhost:9002
   fs.default.name = hdfs://localhost:9000
   dfs.name.dir = /home/jbonofre/apache-karaf-2.2.8/data/hadoop/dfs/name
   dfs.data.dir = /home/jbonofre/apache-karaf-2.2.8/data/hadoop/dfs/data
   service.pid = org.apache.hadoop
   dfs.name.edits.dir = /home/jbonofre/apache-karaf-2.2.8/data/hadoop/dfs/name

    Shell Commands
    --------------
hadoop:archive
hadoop:balancer
hadoop:dfs
hadoop:dfsadmin
hadoop:distcp
hadoop:fsck
hadoop:job
hadoop:mradmin
hadoop:namenode-format
hadoop:pipes
hadoop:queue

    MBeans
    ------
The hadoop feature also register a set of MBeans (with the org.apache.hadoop domain).