FAQ
Hi All,
I am trying to set up a hadoop cluster. I have started hdfs on one machine,
while mapreduce on the other machine. when I try to use "bin/hadoop fs -ls",
the following error is thrown.
09/12/06 03:08:20 INFO ipc.Client: Retrying connect to server: tang1/
143.215.206.12:9000. Already tried 0 time(s).
09/12/06 03:08:21 INFO ipc.Client: Retrying connect to server: tang1/
143.215.206.12:9000. Already tried 1 time(s).
...

More specific, the following is what I have done to start up the
environment. On one machine, I use
bin/hadoop namenode -format
bin/start-dfs.sh

On the other machine, I use
bin/start-mapred.sh

I can ssh from one machine to the other, (though w/ passwd, but I dont know
how to make ssh connect password-free..).
Please let me know what the error is about, and if you have similar
experience, your help is appreciated, thanks for your attention.

Richard Tang

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  • Mike Kendall at Dec 7, 2009 at 6:58 pm
    try this http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29
    On Sat, Dec 5, 2009 at 7:33 PM, Yuzhe Tang wrote:
    Hi All,
    I am trying to set up a hadoop cluster. I have started hdfs on one machine,
    while mapreduce on the other machine. when I try to use "bin/hadoop fs -ls",
    the following error is thrown.
    09/12/06 03:08:20 INFO ipc.Client: Retrying connect to server: tang1/
    143.215.206.12:9000. Already tried 0 time(s).
    09/12/06 03:08:21 INFO ipc.Client: Retrying connect to server: tang1/
    143.215.206.12:9000. Already tried 1 time(s).
    ...

    More specific, the following is what I have done to start up the
    environment. On one machine, I use
    bin/hadoop namenode -format
    bin/start-dfs.sh

    On the other machine, I use
    bin/start-mapred.sh

    I can ssh from one machine to the other, (though w/ passwd, but I dont know
    how to make ssh connect password-free..).
    Please let me know what the error is about, and if you have similar
    experience, your help is appreciated, thanks for your attention.

    Richard Tang

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groupcommon-user @
categorieshadoop
postedDec 6, '09 at 3:34a
activeDec 7, '09 at 6:58p
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websitehadoop.apache.org...
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Mike Kendall: 1 post Yuzhe Tang: 1 post

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