I've missed this part in configuration:
akka.kafka.consumer.kafka-clients {
auto.offset.reset = "latest"
}
Default is "earliest" so consumer always starts from beginning, regardless of
what I put for time in Subscriptions.assignmentOffsetsForTimes.
Zlaja
On Friday, September 22, 2017 at 12:06:40 AM UTC+2, Zlatko Josic wrote:
>
> Hi,
>
> How does exactly Subscriptions.assignmentOffsetsForTimes work?
>
> Should Consumer start getting messages from Kafka starting from offset
> which corresponds to
> forwarded time in Subscriptions.assignmentOffsetsForTimes?
>
> I have this part of code in Lagom:
>
> override def getLiveChanges(): ServiceCall[EsbIdsApi, Source[BookingEventApi,
> NotUsed]] = ServiceCall { request =>
>
> val esbIdsSet = request.esbIds.toSet
>
> val time = System.currentTimeMillis()
> val subscription = Subscriptions.assignmentOffsetsForTimes(
> new TopicPartition("bookings", 0) -> time
> )
>
> val source =
> Consumer.plainSource(consumerSettingsFactory.consumerSettings[BookingEventApi],
> subscription)
> .filter { item =>
> esbIdsSet.contains(item.value.esbId)
>
> }.map { item =>
> item.value()
> }
> Future.successful(source.mapMaterializedValue(_ => NotUsed))
> }
>
>
> But I always get all messages from Kakfa's topic.
>
> Zlaja
>
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