I save and reload model like this:
val bestModel = ALS.train(training, rank, numIter, lambda)
bestModel.get.userFeatures.saveAsObjectFile("hdfs://***:9000/spark/results/userfeatures")
bestModel.get.productFeatures.saveAsObjectFile("hdfs://***:9000/spark/results/productfeatures")
val bestModel = obj.asInstanceOf[MatrixFactorizationModel]
bestModel.userFeatures.sparkContext.objectFile("hdfs://***:9000/spark/results/userfeatures")
bestModel.productFeatures.sparkContext.objectFile("hdfs://***:9000/spark/results/productfeatures")
But, there has same exception:
Exception in thread "Driver" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:162)
Caused by: java.lang.NullPointerException
at
com.ft.jobs.test.ModelDeserialization$.main(ModelDeserialization.scala:138)
at
com.ft.jobs.test.ModelDeserialization.main(ModelDeserialization.scala)
... 5 more
Have fixed this issue?
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