On Apr 1, 2009, at 12:58 AM, Sandhya E wrote:
Hi When the host is listed in slaves file both DataNode and TaskTracker are started on that host. Is there a way in which we can configure a node to be datanode and not tasktracker.
If you use hadoop-daemons.sh, you can pass a host list. So do: ssh namenode hadoop-daemon.sh start namenode ssh jobtracker hadoop-daemon.sh start jobtracker hadoop-daemons.sh -hosts dfs.slaves start datanode hadoop-daemons.hs -hosts mapred.slaves start tasktracker -- Owen
