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MapReduce >> mail # user >> 1.2.1 ouput, what is bufvoid


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kaveh minooie 2013-08-26, 19:26
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Harsh J 2013-08-26, 22:14
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kaveh minooie 2013-08-26, 22:33
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Re: 1.2.1 ouput, what is bufvoid
The length printed there is the # of elements in an internal array,
not a data size length. If you wish to raise that you can raise up
io.sort.spill.percent (default 0.80, or 80%).

On Tue, Aug 27, 2013 at 4:03 AM, kaveh minooie <[EMAIL PROTECTED]> wrote:
> Thaks Harsh, but my io.sort.mb is 320 while, as you can see, length is
> only 1mb (1048576)
>
>
> On 08/26/2013 03:14 PM, Harsh J wrote:
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>> You need to raise io.sort.mb to increase the sort buffer capacity.
>>
>> On Tue, Aug 27, 2013 at 12:56 AM, kaveh minooie <[EMAIL PROTECTED]> wrote:
>>>
>>> I am getting these in job output in the 1.2.1
>>>
>>> Spilling map output: record full = true
>>> 2013-08-26 11:40:33,413 INFO org.apache.hadoop.mapred.MapTask: bufstart >>> 111149676; bufend = 122264640; bufvoid = 318767104
>>> 2013-08-26 11:40:33,413 INFO org.apache.hadoop.mapred.MapTask: kvstart >>> 1048561; kvend = 838844; length = 1048576
>>> 2013-08-26 11:40:35,879 INFO org.apache.hadoop.mapred.MapTask: Finished
>>> spill 10
>>>
>>>
>>> my question is what is bufvoid? and how can I increase the amount of the
>>> length?
>>>
>>> thanks,
>>> --
>>> Kaveh Minooie
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>>
>>
>>
>
> --
> Kaveh Minooie

--
Harsh J
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kaveh minooie 2013-08-26, 22:57