FAQ: How do I access the status page for the jobs?

Answer:

This is a two step process that involves (1) setting up an ssh tunnel to a proxy in the cluster and (2) changing the settings in your browser to use the proxy. Then you can access the status page using the link shown below. Your client host is the computer where your web browser runs, for example mycampuhost.cmu.edu.

For Linux/Mac users

  1. Execute the following command on your client computer to set up an ssh tunnel to the cluster login host:
    ssh -L 8888:proxy.opencloud:8888 login.cloud.pdl.cmu.local
    At this point you have a tunnel that links mycampushost.cmu.edu:8888 to proxy.opencloud:8888.
  2. Change the browser proxy settings to localhost:8888. Instructions on setting up the proxy for different browsers is provided in the CloudFaqBrowserProxySettings page. After adjusting your browser's proxy settings you can access the hadoop job status page

For Windows Users

You'll be running PuTTY on your Windows OS as your ssh client, and a browser on your Windows OS.

  1. Check the CloudFaqLogin for instructions on setting up the ssh tunnel on a Windows OS, using putty.
  2. Launch your web browser on your Windows, and set the browser's proxy settings as described in CloudFaqBrowserProxySettings
    1. By now you should be able to access most CMU websites, e.g. http://www.cs.cmu.edu/ (probably without the middle picture),
    2. if not, double check proxy settings and putty tunnel settings
  3. Now try http://hadoopjt.opencloud:40030/
    1. Make sure your URL is exactly as shown above, not pre-pended with www.
    2. If still not working, contact TA or cluster admin with the exact setup you used in putty and the browser. Provide as much detail as possible.

Back to: CloudClusterFAQ

Topic revision: r8 - 20 Mar 2010 - 20:47:13 - JulioLopez
 

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