Dan Dutrow created SPARK-12103:
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Summary: KafkaUtils createStream with multiple topics -- does not
work as expected
Key: SPARK-12103
URL: https://issues.apache.org/jira/browse/SPARK-12103
Project: Spark
Issue Type: Improvement
Components: Streaming
Affects Versions: 1.0.0
Reporter: Dan Dutrow
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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