I had this problem on a small cluster running Debian, in my case the issue was caused by a reference to 0.0.0.0 as localhost in /etc/hosts, I removed it leaving just 127.0.0.1 as localhost ip and the problem was solved. If it's not the same issue it could be something similar about address resolution... try to understand if this only happens between the same source and destination.

Regards

Fabio

On 11/24/2014 05:45 AM, unmesha sreeveni wrote:
Why is it showing like this. Any clues.

On Tue, Nov 18, 2014 at 10:15 AM, unmesha sreeveni <unmeshab...@gmail.com <mailto:unmeshab...@gmail.com>> wrote:

    Upgraded my Hadoop cluster (CDH) to cdh5.2.0

    But once I run my Job with iteration, It is showing after 1 st
    iterative Job.


    |14/11/17 09:29:44 INFO ipc.Client: Retrying connect to server: 
/xx.xx.xx.xx:xxxx. Already tried 0 time(s); retry policy is 
RetryUpToMaximumCountWithFixedSleep(maxRetries=3, sleepTime=1000 MILLISECONDS)
    14/11/17 09:29:45 INFO ipc.Client: Retrying connect to server: 
/xx.xx.xx.xx:xxxx. Already tried 1 time(s); retry policy is 
RetryUpToMaximumCountWithFixedSleep(maxRetries=3, sleepTime=1000 MILLISECONDS)
    14/11/17 09:29:46 INFO ipc.Client: Retrying connect to server: 
/xx.xx.xx.xx:xxxx. Already tried 2 time(s); retry policy is 
RetryUpToMaximumCountWithFixedSleep(maxRetries=3, sleepTime=1000 MILLISECONDS)|


    ​I have some calculations in Driver class. It is working fine for
    small dataset. When I tried to run 1gb data it is showing above error.
    It seems like after my first job some calculation is done in
    driver class and after the calculation the next job get starts.
    But I think it is not waiting for the time spend for calculation
    in driver class(as it is 1 gb file it takes long time for driver
    calculation) and throwing the above error.

    ​It worked fine in previous version.


    Whether I missed anything during installation?
    Why is it so? Pleace Advice​

-- */Thanks & Regards/ *
    /*
    */
    *Unmesha Sreeveni U.B/
    /*
    *Hadoop, Bigdata Developer*
    *Centre for Cyber Security | Amrita Vishwa Vidyapeetham*
    http://www.unmeshasreeveni.blogspot.in/

    /
    /




--
*/Thanks & Regards/ *
/*
*/
*Unmesha Sreeveni U.B/
/*
*Hadoop, Bigdata Developer*
*Centre for Cyber Security | Amrita Vishwa Vidyapeetham*
http://www.unmeshasreeveni.blogspot.in/

/
/

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