Re: Serialization schema

2017-02-23 Thread
Hi Mohit As you did not give the whole codes of Tuple2Serializerr. I guess the reason is some fields of Tuple2Serializerr do not implement Serializable. 2017-02-24 9:07 GMT+08:00 Mohit Anchlia : > I wrote a key serialization class to write to kafka however I am getting > this error. Not sure why

Re: Writing Tuple2 to a sink

2017-02-23 Thread
ype of outputformat? > > On Tue, Feb 21, 2017 at 7:13 PM, 刘彪 wrote: > >> Hi >> I think there is a good way in FlinkKafkaProducerBase.java to deal with >> this situation. There is a KeyedSerializationSchema user have to implement. >> KeyedSerializationSchema

Re: Writing Tuple2 to a sink

2017-02-21 Thread
Hi I think there is a good way in FlinkKafkaProducerBase.java to deal with this situation. There is a KeyedSerializationSchema user have to implement. KeyedSerializationSchema will be used to serialize data, so that SinkFunction just need to understand the type after serialization. In your case,

In AbstractRocksDBState, why write a byte 42 between key and namespace?

2016-07-15 Thread
In AbstractRocksDBState.writeKeyAndNamespace(): protected void writeKeyAndNamespace(DataOutputView out) throws IOException { backend.keySerializer().serialize(backend.currentKey(), out); out.writeByte(42); namespaceSerializer.serialize(currentNamespace, out); } Why write a byte 42 between key and