Sergey created SPARK-2388:
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Summary: Streaming from multiple different Kafka topics is
problematic
Key: SPARK-2388
URL: https://issues.apache.org/jira/browse/SPARK-2388
Project: Spark
Issue Type: Improvement
Components: Streaming
Affects Versions: 1.0.0
Reporter: Sergey
Fix For: 1.0.1
Default way of creating stream out of Kafka source would be as
val stream = KafkaUtils.createStream(ssc,"localhost:2181","logs",
Map("retarget" -> 2,"datapair" -> 2))
However, if two topics - in this case "retarget" and "datapair" - are very
different, there is no way to set up different filter, mapping functions, etc),
as they are effectively merged.
However, instance of KafkaInputDStream, created with this call internally calls
ConsumerConnector.createMessageStream() which returns *map* of KafkaStreams,
keyed by topic. It would be great if this map would be exposed somehow, so
aforementioned call
val streamS = KafkaUtils.createStreamS(...)
returned map of streams.
Regards,
Sergey Malov
Collective Media
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