how do I verify that all nodes in the cluster are running and doing there job?

[Mark Kerzner <ma...@gmail.com>]

Thank you,
Mark

Re: how do I verify that all nodes in the cluster are running and doing there job?

[abhishek sharma <ab...@usc.edu>]

You can verify that all the nodes are up using the "jps" command.

There is a script slaves.sh that can run any command on the slaves
machines. For e.g., to see the list of TaskTrackers and  DataNodes,
you can do

${HADOOP_HOME}/bin/slaves.sh jps

Abhishek

On Mon, Aug 30, 2010 at 1:37 PM, Mark Kerzner <ma...@gmail.com> wrote:
> Thank you,
> Mark
>

Re: how do I verify that all nodes in the cluster are running and doingthere job?

[shangan <sh...@corp.kaixin001.com>]

you can just run the following command:
hadoop job -list-active-trackers    (check whether all tasktrackers are running well)
hadoop dfsadmin -report              (check whether all datanodes are running well)


2010-08-31 



shangan 



发件人： Mark Kerzner 
发送时间： 2010-08-31  04:37:31 
收件人： core-user 
抄送： 
主题： how do I verify that all nodes in the cluster are running and doingthere job? 
 
Thank you,
Mark
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