FAQ
hello,
My mapreduce program is slow in multi-cluster configuration. Reduce
task is stuck at 16% . But the same program is running more faster in
sudo-mode(single node). what can i do ??? I have only two machine. pls help
me..

--
Ranjith k

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  • Devaraj K at Jul 1, 2011 at 12:16 pm
    Can you check the logs in the task tracker machine, what is happening to the
    task execution and status of the task?



    Devaraj K

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    From: ranjith k
    Sent: Friday, July 01, 2011 1:39 PM
    To: mapreduce-user@hadoop.apache.org
    Subject: hadoop job is run slow in multicluster configuration



    hello,
    My mapreduce program is slow in multi-cluster configuration. Reduce
    task is stuck at 16% . But the same program is running more faster in
    sudo-mode(single node). what can i do ??? I have only two machine. pls help
    me..

    --
    Ranjith k
  • Laurent Hatier at Jul 1, 2011 at 10:05 pm
    Check your /etc/hosts. I've had this problem and i change the 127.0.1.1 or
    127.0.0.1 into the real IP of the machine. Just try it :)

    2011/7/1 Devaraj K <devaraj.k@huawei.com>
    Can you check the logs in the task tracker machine, what is happening to
    the task execution and status of the task?****

    ** **

    Devaraj K ****


    -------------------------------------------------------------------------------------------------------------------------------------
    This e-mail and its attachments contain confidential information from
    HUAWEI, which
    is intended only for the person or entity whose address is listed above.
    Any use of the
    information contained herein in any way (including, but not limited to,
    total or partial
    disclosure, reproduction, or dissemination) by persons other than the
    intended
    recipient(s) is prohibited. If you receive this e-mail in error, please
    notify the sender by
    phone or email immediately and delete it!ss****

    ****
    ------------------------------

    *From:* ranjith k
    *Sent:* Friday, July 01, 2011 1:39 PM
    *To:* mapreduce-user@hadoop.apache.org
    *Subject:* hadoop job is run slow in multicluster configuration****

    ** **

    hello,
    My mapreduce program is slow in multi-cluster configuration. Reduce
    task is stuck at 16% . But the same program is running more faster in
    sudo-mode(single node). what can i do ??? I have only two machine. pls help
    me..

    --
    Ranjith k****


    --
    Laurent HATIER
    Étudiant en 2e année du Cycle Ingénieur à l'EISTI

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postedJul 1, '11 at 8:09a
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