There are several ways to get slave ip address. ( Not sure if you can use all of these on Ec2 )
1. hadoop dfsadmin -report shows you list of nodes and there status 2. Name node slaves page displays information about live nodes. 3. You can execute commands on slaves nodes using bin/slaves.sh - bin/slaves.sh /sbin/ifconfig | grep "inet addr" - Ravi On 3/6/10 9:15 AM, "prasenjit mukherjee" <prasen....@gmail.com> wrote: I am using ec2 and dont see the slaves in $HADOOP_HOME/conf/slaves file. On Sat, Mar 6, 2010 at 9:33 PM, Ted Yu <yuzhih...@gmail.com> wrote: > check conf/slaves file on master: > http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29#conf.2Fslaves_.28master_only.29 > > On Fri, Mar 5, 2010 at 7:13 PM, prasenjit mukherjee < > pmukher...@quattrowireless.com> wrote: > >> Is there any way ( like hadoop-commandline or files ) to know ip >> address of all the cluster nodes ( from master ) >> > Ravi --