Can anyone please suggest on how to resolve this issue? Thanks & Regards, B Anil Kumar.
On Mon, Feb 3, 2014 at 9:34 AM, AnilKumar B <akumarb2...@gmail.com> wrote: > Hi Yong, > > I followed your 2nd suggestion. My data format is is nested(list of map), > So I created .avsc as below. > > {"namespace": "test.avro", > "type": "record", > "name": "Session", > "fields": [ > {"name":"VisitCommon", "type": { > "type": "map", "values":"string"}, > {"name":"events", > "type": { > "type": "array", > "items":{ > "name":"Event", > "type":"map", > "values":"string"} > } > } > ] > } > > And I tried creating corresponding classes by using avro tool and with > plugin, but there are few errors on generated java code. What could be the > issue? > > 1) Error: The method deepCopy(Schema, > List<Map<CharSequence,CharSequence>>) is undefined for the type GenericData > 2) And also observed there is some deprecated code. > @Deprecated public > java.util.Map<java.lang.CharSequence,java.lang.CharSequence> VisitCommon; > > I used eclipse plugin as mentioned below. > http://avro.apache.org/docs/1.7.6/mr.html > > > > > Thanks & Regards, > B Anil Kumar. > > > On Fri, Jan 31, 2014 at 8:27 AM, AnilKumar B <akumarb2...@gmail.com>wrote: > >> Thanks Yong. >> >> Thanks & Regards, >> B Anil Kumar. >> >> >> On Fri, Jan 31, 2014 at 12:44 AM, java8964 <java8...@hotmail.com> wrote: >> >>> In avro, you need to think about a schema to match your data. Avor's >>> schema is very flexible and should be able to store all kinds of data. >>> >>> If you have a Json string, you have 2 options to generate the Avro >>> schema for it: >>> >>> 1) Use "type: string" to store the whole Json string into Avro. This >>> will be easiest, but you have to parse the data later when you use it. >>> 2) Use Avro schema to match your json data, using matching structure >>> from avro for your data, like 'record, array, map' etc. >>> >>> Yong >>> >>> ------------------------------ >>> Date: Fri, 31 Jan 2014 00:13:59 +0530 >>> Subject: shifting sequenceFileOutput format to Avro format >>> From: akumarb2...@gmail.com >>> To: user@hadoop.apache.org >>> >>> >>> Hi, >>> >>> As of now in my jobs, I am using SequenceFileOutputFormat and I am >>> emitting custom java objects as MR output. >>> >>> Now I am planning to emit it in avro format, I went through few blogs >>> but still have following doubts. >>> >>> 1) My current custom Writable objects has nested json format as >>> toString(), So when I shift to avro format, should I just emit json string >>> in avro format, instead of writable custom object? >>> >>> 2) If so, how can I create schema? My json string is nested and will >>> have random key/value pairs. >>> >>> 3) Or can I still emit as custom objects? >>> >>> >>> >>> Thanks & Regards, >>> B Anil Kumar. >>> >> >> >