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From Sagar Naik <sn...@attributor.com>
Subject Re: Hadoop datanode crashed - SIGBUS
Date Mon, 01 Dec 2008 21:32:12 GMT


Brian Bockelman wrote:
> Hardware/memory problems?
I m not sure.
>
> SIGBUS is relatively rare; it sometimes indicates a hardware error in 
> the memory system, depending on your arch.
>
*uname -a : *
Linux hdimg53 2.6.15-1.2054_FC5smp #1 SMP Tue Mar 14 16:05:46 EST 2006 
i686 i686 i386 GNU/Linux
*top's top*
Cpu(s):  0.1% us,  1.1% sy,  0.0% ni, 98.0% id,  0.8% wa,  0.0% hi,  0.0% si
Mem:   8288280k total,  1575680k used,  6712600k free,     5392k buffers
Swap: 16386292k total,       68k used, 16386224k free,   522408k cached

8 core , xeon  2GHz

> Brian
>
> On Dec 1, 2008, at 3:00 PM, Sagar Naik wrote:
>
>> Couple of the datanodes crashed with the following error
>> The /tmp is 15% occupied
>>
>> #
>> # An unexpected error has been detected by Java Runtime Environment:
>> #
>> #  SIGBUS (0x7) at pc=0xb4edcb6a, pid=10111, tid=1212181408
>> #
>> [Too many errors, abort]
>>
>> Pl suggest how should I go to debug this particular problem
>>
>>
>> -Sagar
>

Thanks to Brian

-Sagar

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