The hadoop-bigtop roll can be installed on a running system. The following assumes that roll is available in .iso form and is called "hadoop-bigtop.iso".
$ su - root # rocks add roll hadoop-bigtop.iso # rocks enable roll hadoop-bigtop # cd /export/rocks/install # rocks create distro # rocks run roll hadoop-bigtop | bash # rocks add attr BIGTOP_HadoopNameNode value=compute-0-0 # rocks add attr BIGTOP_HadoopSecondaryNameNode value=compute-0-1 # rocks add attr BIGTOP_HadoopDataDir value="file:///hadoop" # rocks add attr BIGTOP_HadoopData value="file:///hadoop/data" # rocks add attr BIGTOP_HadoopCheckPointDirs value="file:///hadoop" # rocks add attr BIGTOP_HadoopNamenodeNameDir value="file:///hadoop/dfs/name" # rocks add attr BIGTOP_HadoopCheckPointPeriod value=600 # rocks add attr BIGTOP_HadoopUpdateFstab value=1 # rocks add attr BIGTOP_HadoopReplicationDefault value=2 |