Re: Should I use Dstream or Structured Stream to transfer data from source to sink and then back from sink to source?

2017-09-14 Thread kant kodali
Thanks T.D! And sorry for the typo. It's very helpful to know that whatever I was achieving with DStreams I can also achieve the same with Structured streaming. It seems like there is some other error in my code which I fixed it and it seem to be working fine now! Thanks again! On Thu, Sep 14,

Re: Should I use Dstream or Structured Stream to transfer data from source to sink and then back from sink to source?

2017-09-14 Thread Tathagata Das
Are you sure the code is correct? A Dataset does not have a method "trigger". Rather I believe the correct code should be StreamingQuery query = resultDataSet*.writeStream.*trigger( ProcesingTime(1000)).format("kafka").start(); You can do all the same things you can do with Structured Streaming

Should I use Dstream or Structured Stream to transfer data from source to sink and then back from sink to source?

2017-09-13 Thread kant kodali
Hi All, I am trying to read data from kafka, insert into Mongo and read from mongo and insert back into Kafka. I went with structured stream approach first however I believe I am making some naiver error because my map operations are not getting invoked. The pseudo code looks like this DataSet