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    Delete the corrupted index files and on startup, Kafka server will rebuild it.

Solutions on the web

via Stack Overflow by Evgeniy
, 1 year ago
requirement failed: RDD[Rating] in PreparedData cannot be empty. Please check if DataSource generates TrainingData and Preprator generates PreparedData correctly.
via GitHub by i8run
, 7 months ago
requirement failed: index out of bound
via GitHub by Sciss
, 1 year ago
requirement failed
via GitHub by idreeskhan
, 21 hours ago
requirement failed: File `gs://endsong.ap.raw-events.spotify.net/com.spotify.LogRecord.ap.EndSong/2018-03-23/10/part-54337a5a9386bf99cf9a0ee5213a6996-000050.avro` does not exist!
via Stack Overflow by mvg
, 1 year ago
requirement failed: Columns not found in com.sample.practice.Names: [insert_date]
via Google Groups by Harsha Reddy, 2 years ago
requirement failed: users in PreparedData cannot be empty. Please check if DataSource generates TrainingData and Preprator generates PreparedData correctly.
java.lang.IllegalArgumentException: requirement failed: RDD[Rating] in PreparedData cannot be empty. Please check if DataSource generates TrainingData and Preprator generates PreparedData correctly.	at scala.Predef$.require(Predef.scala:233)	at io.cordial.test.ALSAlgorithm.train(ALSAlgorithm.scala:35)	at io.cordial.test.ALSAlgorithm.train(ALSAlgorithm.scala:22)	at io.prediction.controller.PAlgorithm.trainBase(PAlgorithm.scala:47)	at io.prediction.controller.Engine$$anonfun$18.apply(Engine.scala:689)	at io.prediction.controller.Engine$$anonfun$18.apply(Engine.scala:689)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.immutable.List.foreach(List.scala:318)	at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)	at scala.collection.AbstractTraversable.map(Traversable.scala:105)	at io.prediction.controller.Engine$.train(Engine.scala:689)	at io.prediction.controller.Engine.train(Engine.scala:174)	at io.prediction.workflow.CoreWorkflow$.runTrain(CoreWorkflow.scala:65)	at io.prediction.workflow.CreateWorkflow$.main(CreateWorkflow.scala:247)	at io.prediction.workflow.CreateWorkflow.main(CreateWorkflow.scala)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:672)	at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)	at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120)	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)