I am using Spark 2.2.0 through Python.
I am repeatedly getting a zero weight of sums error when trying to run a
model. This happens even when I do not specify a defined weightCol =
"variable"
Py4JJavaError: An error occurred while calling o1295.fit.
: java.lang.AssertionError: assertion failed: Sum of weights cannot be zero.
at scala.Predef$.assert(Predef.scala:170)
at
org.apache.spark.ml.optim.WeightedLeastSquares$Aggregator.validate(WeightedLeastSquares.scala:418)
at
org.apache.spark.ml.optim.WeightedLeastSquares.fit(WeightedLeastSquares.scala:101)
at
org.apache.spark.ml.optim.IterativelyReweightedLeastSquares.fit(IterativelyReweightedLeastSquares.scala:86)
at
org.apache.spark.ml.regression.GeneralizedLinearRegression.train(GeneralizedLinearRegression.scala:369)
at
org.apache.spark.ml.regression.GeneralizedLinearRegression.train(GeneralizedLinearRegression.scala:203)
at org.apache.spark.ml.Predictor.fit(Predictor.scala:118)
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 py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
at py4j.Gateway.invoke(Gateway.java:280)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:214)
at java.lang.Thread.run(Thread.java:745)
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