Creating KafkaStreamToCassandra

[SaddamKhan1490]

What changes were proposed in this pull request?

(This patch is intended to read records from existing Kafka topic and writing those records to existing table under specified keyspace in Cassandra leveraging SparkStreaming )

How was this patch tested?

(This patch was tested : manual tests)

Please review http://spark.apache.org/contributing.html before opening a pull request.

[HyukjinKwon]

Doesn't this require a thridparty library?

[SaddamKhan1490]

hi @HyukjinKwon :

1> Yes it requires third party library dependency i.e. """libraryDependencies += "com.datastax.spark" %% "spark-cassandra-connector" % ''"", & this library is open sourced "https://mvnrepository.com/artifact/com.datastax.spark/spark-cassandra-connector_2.10" and fall under Apache i.e. https://github.com/apache/cassandra, which is also the parent for Spark i.e. https://github.com/apache/spark
2> Also its only NoSQL which offers direct integration with spark
3> https://docs.databricks.com/spark/latest/data-sources/cassandra.html

[HyukjinKwon]

yup but then wouldn't it make more sense that the thridpart library has the example?

[SaddamKhan1490]

@HyukjinKwon : Well in that case you can close the PR #21076

[HyukjinKwon]

Yea, I think we should better leave this closed.

[jerryshao]

@SaddamKhan1490 would you please close this PR. Thanks!

[AmplabJenkins]

Can one of the admins verify this patch?