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Pig, mail # user - How do I load JSON in Pig?


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Re: How do I load JSON in Pig?
Russell Jurney 2012-11-19, 19:27
Got it building. Are google collections and json-simple external deps?
On Mon, Nov 19, 2012 at 11:23 AM, Russell Jurney
<[EMAIL PROTECTED]>wrote:

> It seems that everyone can build elephant-bird but me:
> https://github.com/kevinweil/elephant-bird/issues/272
>
>
> On Sun, Nov 18, 2012 at 7:31 PM, Arian Pasquali <[EMAIL PROTECTED]>wrote:
>
>> I dont think you really need to build it.
>> you can find it at any maven repository.
>>
>> Arian Rodrigo Pasquali
>> FEUP, SAPO Labs
>> http://www.arianpasquali.com
>> twitter @arianpasquali
>>
>>
>>
>> 2012/11/18 Arian Pasquali <[EMAIL PROTECTED]>
>>
>> > U dont need to build neither
>> > Just download those two jar I used in my example.
>> >
>> > Arian
>> >
>> > Em domingo, 18 de novembro de 2012, Russell Jurney escreveu:
>> >
>> >> Thanks - looks like I don't have to specify the schema, which is good.
>> >>
>> >> I'll try and build elephant-bird.
>> >>
>> >> Russell Jurney http://datasyndrome.com
>> >>
>> >> On Nov 17, 2012, at 9:30 PM, Arian Pasquali <[EMAIL PROTECTED]>
>> >> wrote:
>> >>
>> >> > keep calm
>> >> > and use elephant-bird
>> >> > https://github.com/kevinweil/elephant-bird<
>> >>
>> https://github.com/kevinweil/elephant-bird/blob/master/pig/src/main/java/com/twitter/elephantbird/pig/load/JsonLoader.java
>> >> >
>> >> >
>> >> > I posted here yesterday an example how to load tweets in json
>> >> > here goes again. I hope it helps.
>> >> >
>> >> >  register 'elephant-bird-core-3.0.0.jar'
>> >> >    register 'elephant-bird-pig-3.0.0.jar'
>> >> >    register 'google-collections-1.0.jar'
>> >> >    register 'json-simple-1.1.jar'
>> >> >
>> >> >    json_lines = LOAD
>> >> > '/twitter_data/tweets/stream/v1/json/2012_10_10/08' USING
>> >> > com.twitter.elephantbird.pig.load.JsonLoader();
>> >> >
>> >> >    geo_tweets = FOREACH json_lines GENERATE (CHARARRAY) $0#'id' AS
>> >> > id, (CHARARRAY) $0#'geoLocation' AS geoLocation;
>> >> >
>> >> >    only_not_nulls = FILTER geo_tweets BY geoLocation is not null;
>> >> >    store only_not_nulls into '/twitter_data/results/geo_tweets';
>> >> >
>> >> >
>> >> >
>> >> > Arian Rodrigo Pasquali
>> >> > FEUP, SAPO Labs
>> >> > http://www.arianpasquali.com
>> >> > twitter @arianpasquali
>> >> >
>> >> >
>> >> >
>> >> > 2012/11/18 Dan Young <[EMAIL PROTECTED]>
>> >> >
>> >> >> No sure if this helps, but in 0.11 I've been using this on EMR for
>> >> some of
>> >> >> our JSON data....
>> >> >>
>> >> >> raw = load 'hdfs:///cleaned_logs/clicks2/$year_id/$month_id/part-*'
>> >> USING
>> >> >>
>> >> >>
>> >>
>> JsonLoader('a:chararray,at:chararray,c1:(url:chararray,useragent:chararray,referrer:chararray,window:(innerheight:chararray,innerwidth:chararray,outerheight:chararray,outerwidth:chararray),resolution:(height:chararray,width:chararray)),cst:chararray,d:(a:chararray,b:chararray),i:chararray,id:chararray,ip:chararray,k:chararray,l:(lat:chararray,lng:chararray),p:chararray,pv:chararray,sa:chararray,sid:chararray,sst:chararray,t:chararray,uuid:chararray,v:chararray');
>> >> >>
>> >> >>
>> >> >> Regards,
>> >> >>
>> >> >> Dano
>> >> >>
>> >> >>
>> >> >>
>> >> >> On Sat, Nov 17, 2012 at 3:09 PM, Russell Jurney <
>> >> [EMAIL PROTECTED]
>> >> >>> wrote:
>> >> >>
>> >> >>> I have some JSON data with a uniform schema. I want to load it in
>> Pig.
>> >> >>> JsonStorage doesn't work, because the data has no schema.
>> >> >>>
>> >> >>> How can I load JSON data in Pig?
>> >> >>>
>> >> >>> --
>> >> >>> Russell Jurney twitter.com/rjurney [EMAIL PROTECTED]
>> >> >>> datasyndrome.com
>> >> >>>
>> >> >>
>> >>
>> >
>> >
>> > --
>> > Sent from Gmail Mobile
>> >
>>
>
>
>
> --
> Russell Jurney twitter.com/rjurney [EMAIL PROTECTED] datasyndrome.
> com
>

--
Russell Jurney twitter.com/rjurney [EMAIL PROTECTED] datasyndrome.com