If you're talking about the version of scala used to build the broker,
that shouldn't matter.
If you're talking about the version of scala used for the kafka client
dependency, it shouldn't have compiled at all to begin with.
On Wed, Feb 22, 2017 at 12:11 PM, Muhammad Haseeb Javed
<11besemja...@seecs.edu.pk> wrote:
> I just noticed that Spark version that I am using (2.0.2) is built with
> Scala 2.11. However I am using Kafka 0.8.2 built with Scala 2.10. Could this
> be the reason why we are getting this error?
>
> On Mon, Feb 20, 2017 at 5:50 PM, Cody Koeninger <c...@koeninger.org> wrote:
>>
>> So there's no reason to use checkpointing at all, right? Eliminate
>> that as a possible source of problems.
>>
>> Probably unrelated, but this also isn't a very good way to benchmark.
>> Kafka producers are threadsafe, there's no reason to create one for
>> each partition.
>>
>> On Mon, Feb 20, 2017 at 4:43 PM, Muhammad Haseeb Javed
>> <11besemja...@seecs.edu.pk> wrote:
>> > This is the code that I have been trying is giving me this error. No
>> > complicated operation being performed on the topics as far as I can see.
>> >
>> > class Identity() extends BenchBase {
>> >
>> >
>> > override def process(lines: DStream[(Long, String)], config:
>> > SparkBenchConfig): Unit = {
>> >
>> > val reportTopic = config.reporterTopic
>> >
>> > val brokerList = config.brokerList
>> >
>> >
>> > lines.foreachRDD(rdd => rdd.foreachPartition( partLines => {
>> >
>> > val reporter = new KafkaReporter(reportTopic, brokerList)
>> >
>> > partLines.foreach{ case (inTime , content) =>
>> >
>> > val outTime = System.currentTimeMillis()
>> >
>> > reporter.report(inTime, outTime)
>> >
>> > if(config.debugMode) {
>> >
>> > println("Event: " + inTime + ", " + outTime)
>> >
>> > }
>> >
>> > }
>> >
>> > }))
>> >
>> > }
>> >
>> > }
>> >
>> >
>> > On Mon, Feb 20, 2017 at 3:10 PM, Cody Koeninger <c...@koeninger.org>
>> > wrote:
>> >>
>> >> That's an indication that the beginning offset for a given batch is
>> >> higher than the ending offset, i.e. something is seriously wrong.
>> >>
>> >> Are you doing anything at all odd with topics, i.e. deleting and
>> >> recreating them, using compacted topics, etc?
>> >>
>> >> Start off with a very basic stream over the same kafka topic that just
>> >> does foreach println or similar, with no checkpointing at all, and get
>> >> that working first.
>> >>
>> >> On Mon, Feb 20, 2017 at 12:10 PM, Muhammad Haseeb Javed
>> >> <11besemja...@seecs.edu.pk> wrote:
>> >> > Update: I am using Spark 2.0.2 and Kafka 0.8.2 with Scala 2.10
>> >> >
>> >> > On Mon, Feb 20, 2017 at 1:06 PM, Muhammad Haseeb Javed
>> >> > <11besemja...@seecs.edu.pk> wrote:
>> >> >>
>> >> >> I am PhD student at Ohio State working on a study to evaluate
>> >> >> streaming
>> >> >> frameworks (Spark Streaming, Storm, Flink) using the the Intel
>> >> >> HiBench
>> >> >> benchmarks. But I think I am having a problem with Spark. I have
>> >> >> Spark
>> >> >> Streaming application which I am trying to run on a 5 node cluster
>> >> >> (including master). I have 2 zookeeper and 4 kafka brokers. However,
>> >> >> whenever I run a Spark Streaming application I encounter the
>> >> >> following
>> >> >> error:
>> >> >>
>> >> >> java.lang.IllegalArgumentException: requirement failed: numRecords
>> >> >> must
>> >> >> not be negative
>> >> >> at scala.Predef$.require(Predef.scala:224)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.scheduler.StreamInputInfo.<init>(InputInfoTracker.scala:38)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.kafka.DirectKafkaInputDStream.compute(DirectKafkaInputDStream.scala:165)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1$$anonfun$1$$anonfun$apply$7.apply(DStream.scala:341)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1$$anonfun$1$$anonfun$apply$7.apply(DStream.scala:341)
>> >> >> at
>> >> >> scala.util.DynamicVariable.withValue(DynamicVariable.scala:58)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1$$anonfun$1.apply(DStream.scala:340)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1$$anonfun$1.apply(DStream.scala:340)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream.createRDDWithLocalProperties(DStream.scala:415)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1.apply(DStream.scala:335)
>> >> >> at
>> >> >>
>> >> >>
>> >> >> org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1.apply(DStream.scala:333)
>> >> >> at scala.Option.orElse(Option.scala:289)
>> >> >>
>> >> >> The application starts fine, but as soon as the Kafka producers
>> >> >> start
>> >> >> emitting the stream data I start receiving the aforementioned error
>> >> >> repeatedly.
>> >> >>
>> >> >> I have tried removing Spark Streaming checkpointing files as has
>> >> >> been
>> >> >> suggested in similar posts on the internet. However, the problem
>> >> >> persists
>> >> >> even if I start a Kafka topic and its corresponding consumer Spark
>> >> >> Streaming
>> >> >> application for the first time. Also the problem could not be offset
>> >> >> related
>> >> >> as I start the topic for the first time.
>> >> >>
>> >> >> Although the application seems to be processing the stream properly
>> >> >> as
>> >> >> I
>> >> >> can see by the benchmark numbers generated. However, the numbers are
>> >> >> way of
>> >> >> from what I got for Storm and Flink, suspecting me to believe that
>> >> >> there is
>> >> >> something wrong with the pipeline and Spark is not able to process
>> >> >> the
>> >> >> stream as cleanly as it should. Any help in this regard would be
>> >> >> really
>> >> >> appreciated.
>> >> >
>> >> >
>> >
>> >
>
>
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