Indeed I have. But, even when storing the offsets in Spark and committing offsets upon completion of an output operation within the foreachRDD call (as pointed in the example), the only offset that Spark’s Kafka implementation commits to Kafka is the offset of the last message. For example, if I have 100 million messages, then Spark will commit only the 100 millionth offset, and the offsets of the intermediate batches - and hence the questions.
> On 26 Apr 2017, at 21:42, Cody Koeninger <c...@koeninger.org> wrote: > > have you read > > http://spark.apache.org/docs/latest/streaming-kafka-0-10-integration.html#kafka-itself > > On Wed, Apr 26, 2017 at 1:17 PM, Dominik Safaric > <dominiksafa...@gmail.com> wrote: >> The reason why I want to obtain this information, i.e. <partition, offset, >> timestamp> tuples is to relate the consumption with the production rates >> using the __consumer_offsets Kafka internal topic. Interestedly, the Spark’s >> KafkaConsumer implementation does not auto commit the offsets upon offset >> commit expiration, because as seen in the logs, Spark overrides the >> enable.auto.commit property to false. >> >> Any idea onto how to use the KafkaConsumer’s auto offset commits? Keep in >> mind that I do not care about exactly-once, hence having messages replayed >> is perfectly fine. >> >>> On 26 Apr 2017, at 19:26, Cody Koeninger <c...@koeninger.org> wrote: >>> >>> What is it you're actually trying to accomplish? >>> >>> You can get topic, partition, and offset bounds from an offset range like >>> >>> http://spark.apache.org/docs/latest/streaming-kafka-0-10-integration.html#obtaining-offsets >>> >>> Timestamp isn't really a meaningful idea for a range of offsets. >>> >>> >>> On Tue, Apr 25, 2017 at 2:43 PM, Dominik Safaric >>> <dominiksafa...@gmail.com> wrote: >>>> Hi all, >>>> >>>> Because the Spark Streaming direct Kafka consumer maps offsets for a given >>>> Kafka topic and a partition internally while having enable.auto.commit set >>>> to false, how can I retrieve the offset of each made consumer’s poll call >>>> using the offset ranges of an RDD? More precisely, the information I seek >>>> to >>>> get after each poll call is the following: <timestamp, offset, partition>. >>>> >>>> Thanks in advance, >>>> Dominik >>>> >> --------------------------------------------------------------------- To unsubscribe e-mail: user-unsubscr...@spark.apache.org
