FAQ
Hi,
I am new to Hadoop. I just configured it based on the documentation. While
I was running example program wordcount.java, I am getting errors. When I
gave command
$ /bin/hadoop dfs -mkdir santhosh , I am getting error as

09/10/08 13:30:12 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 0 time(s).
09/10/08 13:30:13 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 1 time(s).
09/10/08 13:30:14 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 2 time(s).
09/10/08 13:30:15 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 3 time(s).
09/10/08 13:30:16 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 4 time(s).
09/10/08 13:30:17 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 5 time(s).
09/10/08 13:30:18 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 6 time(s).
09/10/08 13:30:19 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 7 time(s).
09/10/08 13:30:20 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 8 time(s).
09/10/08 13:30:21 INFO ipc.Client: Retrying connect to server: /
192.168.100.11:8020. Already tried 9 time(s).
Bad connection to FS. command aborted.

I can able to ssh to the server without any password. And I didnt get any
error while I was formating HDFS using the command $ bin/hadoop namenode
-format .
Please help me . what should I do now?. Thank you.



--
Gandham Santhosh

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  • .ke. sivakumar at Oct 9, 2009 at 1:45 am
    Hi Santosh,

    Check whether all the datanodes are up and running, using
    the command
    'bin/hadoop dfsadmin -report'.



    On Thu, Oct 8, 2009 at 4:24 AM, santosh gandham wrote:

    Hi,
    I am new to Hadoop. I just configured it based on the documentation. While
    I was running example program wordcount.java, I am getting errors. When I
    gave command
    $ /bin/hadoop dfs -mkdir santhosh , I am getting error as

    09/10/08 13:30:12 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 0 time(s).
    09/10/08 13:30:13 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 1 time(s).
    09/10/08 13:30:14 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 2 time(s).
    09/10/08 13:30:15 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 3 time(s).
    09/10/08 13:30:16 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 4 time(s).
    09/10/08 13:30:17 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 5 time(s).
    09/10/08 13:30:18 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 6 time(s).
    09/10/08 13:30:19 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 7 time(s).
    09/10/08 13:30:20 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 8 time(s).
    09/10/08 13:30:21 INFO ipc.Client: Retrying connect to server: /
    192.168.100.11:8020. Already tried 9 time(s).
    Bad connection to FS. command aborted.

    I can able to ssh to the server without any password. And I didnt get any
    error while I was formating HDFS using the command $ bin/hadoop namenode
    -format .
    Please help me . what should I do now?. Thank you.



    --
    Gandham Santhosh
  • Endho at Apr 19, 2011 at 1:43 pm
    hi ,
    Am having the same problem with the bin/hadoop dfs command. And I havent
    figured out the problem yet. Did you get the solution for it??
  • David Sinclair at Apr 19, 2011 at 1:47 pm
    Can you give a little more details about your problem and hadoop setup? Is
    this a single machine running NN, DN, etc., or is this a cluster?
    On Tue, Apr 19, 2011 at 9:42 AM, endho wrote:


    hi ,
    Am having the same problem with the bin/hadoop dfs command. And I havent
    figured out the problem yet. Did you get the solution for it??
    --
    View this message in context:
    http://old.nabble.com/Error%3A-INFO-ipc.Client%3A-Retrying-connect-to-server%3A---192.168.100.11%3A8020.-Already-tried-0-time%28s%29.-tp25800893p31432689.html
    Sent from the Hadoop core-user mailing list archive at Nabble.com.
  • Shriparv at Nov 2, 2012 at 2:56 pm
    This just tells that the service which you are trying to conned is not
    running on that address or port no.

    just try netstat -nlrt | grep 8020 and check if it showing something. what i
    can find out from the error that the server is not running or if it running
    then its running on some other port

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postedOct 8, '09 at 9:24a
activeNov 2, '12 at 2:56p
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