Hi Cody - i do have a additional basic question .. When i tried to compile the code in Eclipse, i was not able to do that
eg. import org.apache.spark.streaming.kafka.KafkaUtils gave errors saying KafaUtils was not part of the package. However, when i used sbt to compile - the compilation went through fine So, I assume additional libraries are being downloaded when i provide the appropriate packages in LibraryDependencies ? which ones would have helped compile this ? On Sat, Jun 17, 2017 at 2:53 PM, karan alang <karan.al...@gmail.com> wrote: > Thanks, Cody .. yes, was able to fix that. > > On Sat, Jun 17, 2017 at 1:18 PM, Cody Koeninger <c...@koeninger.org> > wrote: > >> There are different projects for different versions of kafka, >> spark-streaming-kafka-0-8 and spark-streaming-kafka-0-10 >> >> See >> >> http://spark.apache.org/docs/latest/streaming-kafka-integration.html >> >> On Fri, Jun 16, 2017 at 6:51 PM, karan alang <karan.al...@gmail.com> >> wrote: >> > I'm trying to compile kafka & Spark Streaming integration code i.e. >> reading >> > from Kafka using Spark Streaming, >> > and the sbt build is failing with error - >> > >> > [error] (*:update) sbt.ResolveException: unresolved dependency: >> > org.apache.spark#spark-streaming-kafka_2.11;2.1.0: not found >> > >> > Scala version -> 2.10.7 >> > Spark Version -> 2.1.0 >> > Kafka version -> 0.9 >> > sbt version -> 0.13 >> > >> > Contents of sbt files is as shown below -> >> > >> > 1) >> > vi spark_kafka_code/project/plugins.sbt >> > >> > addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.11.2") >> > >> > 2) >> > vi spark_kafka_code/sparkkafka.sbt >> > >> > import AssemblyKeys._ >> > assemblySettings >> > >> > name := "SparkKafka Project" >> > >> > version := "1.0" >> > scalaVersion := "2.11.7" >> > >> > val sparkVers = "2.1.0" >> > >> > // Base Spark-provided dependencies >> > libraryDependencies ++= Seq( >> > "org.apache.spark" %% "spark-core" % sparkVers % "provided", >> > "org.apache.spark" %% "spark-streaming" % sparkVers % "provided", >> > "org.apache.spark" %% "spark-streaming-kafka" % sparkVers) >> > >> > mergeStrategy in assembly := { >> > case m if m.toLowerCase.endsWith("manifest.mf") => >> MergeStrategy.discard >> > case m if m.toLowerCase.startsWith("META-INF") => >> MergeStrategy.discard >> > case "reference.conf" => >> MergeStrategy.concat >> > case m if m.endsWith("UnusedStubClass.class") => >> MergeStrategy.discard >> > case _ => MergeStrategy.first >> > } >> > >> > i launch sbt, and then try to create an eclipse project, complete >> error is >> > as shown below - >> > >> > --------------------- >> > >> > sbt >> > [info] Loading global plugins from /Users/karanalang/.sbt/0.13/plugins >> > [info] Loading project definition from >> > /Users/karanalang/Documents/Technology/Coursera_spark_scala/ >> spark_kafka_code/project >> > [info] Set current project to SparkKafka Project (in build >> > file:/Users/karanalang/Documents/Technology/Coursera_spark_ >> scala/spark_kafka_code/) >> >> eclipse >> > [info] About to create Eclipse project files for your project(s). >> > [info] Updating >> > {file:/Users/karanalang/Documents/Technology/Coursera_spark_ >> scala/spark_kafka_code/}spark_kafka_code... >> > [info] Resolving org.apache.spark#spark-streaming-kafka_2.11;2.1.0 ... >> > [warn] module not found: >> > org.apache.spark#spark-streaming-kafka_2.11;2.1.0 >> > [warn] ==== local: tried >> > [warn] >> > /Users/karanalang/.ivy2/local/org.apache.spark/spark-streami >> ng-kafka_2.11/2.1.0/ivys/ivy.xml >> > [warn] ==== activator-launcher-local: tried >> > [warn] >> > /Users/karanalang/.activator/repository/org.apache.spark/spa >> rk-streaming-kafka_2.11/2.1.0/ivys/ivy.xml >> > [warn] ==== activator-local: tried >> > [warn] >> > /Users/karanalang/Documents/Technology/SCALA/activator-dist- >> 1.3.10/repository/org.apache.spark/spark-streaming-kafka_2. >> 11/2.1.0/ivys/ivy.xml >> > [warn] ==== public: tried >> > [warn] >> > https://repo1.maven.org/maven2/org/apache/spark/spark-stream >> ing-kafka_2.11/2.1.0/spark-streaming-kafka_2.11-2.1.0.pom >> > [warn] ==== typesafe-releases: tried >> > [warn] >> > http://repo.typesafe.com/typesafe/releases/org/apache/spark/ >> spark-streaming-kafka_2.11/2.1.0/spark-streaming-kafka_2.11-2.1.0.pom >> > [warn] ==== typesafe-ivy-releasez: tried >> > [warn] >> > http://repo.typesafe.com/typesafe/ivy-releases/org.apache. >> spark/spark-streaming-kafka_2.11/2.1.0/ivys/ivy.xml >> > [info] Resolving jline#jline;2.12.1 ... >> > [warn] :::::::::::::::::::::::::::::::::::::::::::::: >> > [warn] :: UNRESOLVED DEPENDENCIES :: >> > [warn] :::::::::::::::::::::::::::::::::::::::::::::: >> > [warn] :: org.apache.spark#spark-streaming-kafka_2.11;2.1.0: not >> found >> > [warn] :::::::::::::::::::::::::::::::::::::::::::::: >> > [warn] >> > [warn] Note: Unresolved dependencies path: >> > [warn] org.apache.spark:spark-streaming-kafka_2.11:2.1.0 >> > (/Users/karanalang/Documents/Technology/Coursera_spark_scala >> /spark_kafka_code/sparkkafka.sbt#L12-16) >> > [warn] +- sparkkafka-project:sparkkafka-project_2.11:1.0 >> > [trace] Stack trace suppressed: run last *:update for the full output. >> > [error] (*:update) sbt.ResolveException: unresolved dependency: >> > org.apache.spark#spark-streaming-kafka_2.11;2.1.0: not found >> > [info] Updating >> > {file:/Users/karanalang/Documents/Technology/Coursera_spark_ >> scala/spark_kafka_code/}spark_kafka_code... >> > [info] Resolving org.apache.spark#spark-streaming-kafka_2.11;2.1.0 ... >> > [warn] module not found: >> > org.apache.spark#spark-streaming-kafka_2.11;2.1.0 >> > [warn] ==== local: tried >> > [warn] >> > /Users/karanalang/.ivy2/local/org.apache.spark/spark-streami >> ng-kafka_2.11/2.1.0/ivys/ivy.xml >> > [warn] ==== activator-launcher-local: tried >> > [warn] >> > /Users/karanalang/.activator/repository/org.apache.spark/spa >> rk-streaming-kafka_2.11/2.1.0/ivys/ivy.xml >> > [warn] ==== activator-local: tried >> > [warn] >> > /Users/karanalang/Documents/Technology/SCALA/activator-dist- >> 1.3.10/repository/org.apache.spark/spark-streaming-kafka_2. >> 11/2.1.0/ivys/ivy.xml >> > [warn] ==== public: tried >> > [warn] >> > https://repo1.maven.org/maven2/org/apache/spark/spark-stream >> ing-kafka_2.11/2.1.0/spark-streaming-kafka_2.11-2.1.0.pom >> > [warn] ==== typesafe-releases: tried >> > [warn] >> > http://repo.typesafe.com/typesafe/releases/org/apache/spark/ >> spark-streaming-kafka_2.11/2.1.0/spark-streaming-kafka_2.11-2.1.0.pom >> > [warn] ==== typesafe-ivy-releasez: tried >> > [warn] >> > http://repo.typesafe.com/typesafe/ivy-releases/org.apache. >> spark/spark-streaming-kafka_2.11/2.1.0/ivys/ivy.xml >> > [info] Resolving jline#jline;2.12.1 ... >> > [warn] :::::::::::::::::::::::::::::::::::::::::::::: >> > [warn] :: UNRESOLVED DEPENDENCIES :: >> > [warn] :::::::::::::::::::::::::::::::::::::::::::::: >> > [warn] :: org.apache.spark#spark-streaming-kafka_2.11;2.1.0: not >> found >> > [warn] :::::::::::::::::::::::::::::::::::::::::::::: >> > [warn] >> > [warn] Note: Unresolved dependencies path: >> > [warn] org.apache.spark:spark-streaming-kafka_2.11:2.1.0 >> > (/Users/karanalang/Documents/Technology/Coursera_spark_scala >> /spark_kafka_code/sparkkafka.sbt#L12-16) >> > [warn] +- sparkkafka-project:sparkkafka-project_2.11:1.0 >> > [trace] Stack trace suppressed: run last *:update for the full output. >> > [error] (*:update) sbt.ResolveException: unresolved dependency: >> > org.apache.spark#spark-streaming-kafka_2.11;2.1.0: not found >> > [error] Could not create Eclipse project files: >> > [error] Error evaluating task 'scalacOptions': error >> > [error] Error evaluating task 'externalDependencyClasspath': error >> >> >> > >
