Grokbase › Groups › Hadoop › scm-users › March 2013
FAQ
Hi all,

I'm downloading the client-conf for a cluster on Skytap/EC2 with the
Cloudera Manager REST API and trying to use it to talk to HDFS and submit
jobs directly from a Java client.

Since Cloudera Manager can only give me private hostnames of the hosts, the
config files are not correct and the Java client is unable to connect to
the cluster.

Is there any way for me to find out the public hostnames for the namenode
and jobtracker? So that the users of my Java client won't have to know them
and supply them as input to be able to connect to the cluster?

Cheers,
Bjorn

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  • Björn Jónsson at Mar 19, 2013 at 11:42 pm ⇧
    Actually, the template for Skytap puts the namenode and jobtracker on the
    same host as the manager. This solves the problem for me on Skytap, but the
    config files are still not working of course.
    On Tuesday, 19 March 2013 16:34:13 UTC-7, Björn Jónsson wrote:

    Hi all,

    I'm downloading the client-conf for a cluster on Skytap/EC2 with the
    Cloudera Manager REST API and trying to use it to talk to HDFS and submit
    jobs directly from a Java client.

    Since Cloudera Manager can only give me private hostnames of the hosts,
    the config files are not correct and the Java client is unable to connect
    to the cluster.

    Is there any way for me to find out the public hostnames for the namenode
    and jobtracker? So that the users of my Java client won't have to know them
    and supply them as input to be able to connect to the cluster?

    Cheers,
    Bjorn

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postedMar 19, '13 at 11:34p
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Björn Jónsson: 2 posts

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