I get the impression that one can, potentially, have multiple JobTracker nodes configured to share the same set of MR (TaskTracker) nodes. I know that, conventionally, all the nodes in a Hadoop ...
As I am setting up Hadoop, one question keeps popping in my mind but I can't find the answer. Which Hadoop configuration files need to be copied to which nodes. For example, I'm making changes to the ...
I've setup Hadoop to use Kerberos (following the Cloudera security guide), but it is unclear how I connect to hadoop with regular users (e.g. username=myuser). Currently I have myself ...
I want to use puppet to manage a hadoop cluster. On the machines we have several directories which must be created and set permissions. But i'm unable to add array values for defined methods. define ...