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From Vandana kumari <kvandana1...@gmail.com>
Subject Re: Creation of an empty output directory in hadoop filesystem
Date Wed, 07 Jan 2015 14:10:14 GMT
I had made changes in the file but still nothing happens. Please help i am
beginner in this.
kmer.java is attached herewith.

On Wed, Jan 7, 2015 at 7:03 PM, Vandana kumari <kvandana1992@gmail.com>
wrote:

> yes, there is no compilation error. But thank you for finding mistakes, i
> will make the above changes and let you all know.
>
> On Wed, Jan 7, 2015 at 6:52 PM, Shahab Yunus <shahab.yunus@gmail.com>
> wrote:
>
>> Vandana,
>>
>> Also, in the code that you attached, I see 2 compilation errors. How is
>> it even compiling? Or am I missing something here?
>>
>> 1- The 'sum' is not declared in the Map class.
>> 2- The 'sum' in the Reduce class, when written to the context needs to be
>> IntWritable and not directly an int.
>>
>> Regards,
>> Shahab
>>
>> On Wed, Jan 7, 2015 at 8:18 AM, Shahab Yunus <shahab.yunus@gmail.com>
>> wrote:
>>
>>> First try:
>>>
>>> You should use @Override annotation before map and reduce methods so
>>> they are actually called.
>>>
>>> Like this:
>>> *@Override*
>>>  public void map(LongWritable k,Text v,Context con)throws
>>> IOException,InterruptedException
>>>
>>>         {...
>>>
>>> Do same for 'reduce' method.
>>>
>>> Regards,
>>> Shahab
>>>
>>> On Wed, Jan 7, 2015 at 7:58 AM, Vandana kumari <kvandana1992@gmail.com>
>>> wrote:
>>>
>>>>
>>>>
>>>> On Wed, Jan 7, 2015 at 4:16 PM, saurabh chhajed <schhajed.iet@gmail.com
>>>> > wrote:
>>>>
>>>>> Can you attach .java file instead of .class ?
>>>>>
>>>>> On Wed, Jan 7, 2015 at 4:04 PM, Vandana kumari <kvandana1992@gmail.com
>>>>> > wrote:
>>>>>
>>>>>> Hello all,
>>>>>>
>>>>>> I had written a kmer mapreduce program in java. There is no error
in
>>>>>> the program and while running it creates an output directory in hadoop
file
>>>>>> system but that directory is empty.
>>>>>> Please help to resolve this issue.
>>>>>> Input file(test.txt) and kmer.java is attached herewith.
>>>>>> --
>>>>>> Thanks and regards
>>>>>>   Vandana kumari
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> [image: --]
>>>>> Saurabh Chhajed
>>>>> [image: http://]saurzcode.in/
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Thanks and regards
>>>>   Vandana kumari
>>>>
>>>
>>>
>>
>
>
> --
> Thanks and regards
>   Vandana kumari
>



-- 
Thanks and regards
  Vandana kumari

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