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From Carmen Manzulli <carmenmanzu...@gmail.com>
Subject Re: string parameter from command line
Date Wed, 16 Jul 2014 14:49:06 GMT
every kind of suggestions will be appreciated


2014-07-16 13:32 GMT+02:00 Carmen Manzulli <carmenmanzulli@gmail.com>:

> yes...this i would obtain...but there is a unknown error (for me) in the
> code:
>
> public final StrConfOption SOURCE_ID = new
> StrConfOption("Selection.sourceId",null,"select source id");
>       public final Text subject=new
> Text(getConf().get("Selection.sourceId"));
>
> and from command line: hadoop jar.....-vip....-ca
> Selection.sourceId="string"
>
> i would use <subject> to compare vertex ID values ( defined as Text in my
> inputFormat)
>
>
> 2014-07-16 12:15 GMT+02:00 Sundara Raghavan Sankaran <
> sundar@crayondata.com>:
>
> I'm not sure of the use case here, but I'll give an example which might
>> help you.
>>
>> The parameter is given in the command line with -ca (as you said). For
>> example
>> hadoop jar sample.jar -vip .... *-ca sample.option1=value1 -ca
>> sample.option2=value2*
>>
>> You can then get this value from the configuration in your computation
>> class
>>
>> *String option1 = getConf().get("sample.option1"); // will get "value1"*
>>
>> *String option2 = getConf().get("sample.option2"); // will get "value2"*
>>
>>
>>
>> On Wed, Jul 16, 2014 at 2:49 PM, Carmen Manzulli <
>> carmenmanzulli@gmail.com> wrote:
>>
>>> Hi experts,
>>> I'm trying to insert a string parameter from the command line with
>>> "-ca"...so in my Computation code i've created a StrConfOption...when
>>> running i get NPE because it seems to set the value of this string to
>>> null...
>>>
>>> how can i fix this problem?
>>>
>>
>>
>

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