Thanks Ravi, it helped. BTW, only the first trick worked : hadoop dfsadmin -report | grep "Name:" | cut -d":" -f2
2nd one may not be applicable as I need to automate this ( hence need a commandline utility ) 3rd approach didnt work, as the commands are getting ecxecuted only on the local slave-node and not on all the slaves. -Prasen On Sun, Mar 7, 2010 at 7:05 AM, Ravi Phulari <rphul...@yahoo-inc.com> wrote: > There are several ways to get slave ip address. ( Not sure if you can use > all of these on Ec2 ) > > hadoop dfsadmin -report shows you list of nodes and there status > Name node slaves page displays information about live nodes. > 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 > -- > >
