On Jun 23, 2010, at 3:13 PM, Pedro Costa wrote:
> 1 - Hadoop uses several ports to run. It exists ports for HDFS, for the MapReduce JvmTasks, etc. I don't know how I can identify all the ports that a MapReduce and HDFS uses. I'm running the wordcount example, and I would like to see what ports are open and what are their purpose. Where can I get this information?
netstat, because most ports are ephemeral.