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[jvm-packages] Fixed the distributed updater check (#3739)

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The updater used in distributed training is grow_histmaker and not 
grow_colmaker as the error message stated prior to this commit.
This commit is contained in:
Sergei Lebedev 2018-10-01 20:22:01 +02:00 committed by Nan Zhu
parent 70d208d68c
commit 87aca8c244
1 changed files with 2 additions and 2 deletions
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4
jvm-packages/xgboost4j-spark/src/main/scala/ml/dmlc/xgboost4j/scala/spark/params/GeneralParams.scala
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@ -224,10 +224,10 @@ private[spark] trait ParamMapFuncs extends Params {
def XGBoostToMLlibParams(xgboostParams: Map[String, Any]): Unit = { def XGBoostToMLlibParams(xgboostParams: Map[String, Any]): Unit = {
for ((paramName, paramValue) <- xgboostParams) { for ((paramName, paramValue) <- xgboostParams) {
if ((paramName == "booster" && paramValue != "gbtree") || if ((paramName == "booster" && paramValue != "gbtree") ||
(paramName == "updater" && paramValue != "grow_colmaker,prune")) { (paramName == "updater" && paramValue != "grow_histmaker,prune")) {
throw new IllegalArgumentException(s"you specified $paramName as $paramValue," + throw new IllegalArgumentException(s"you specified $paramName as $paramValue," +
s" XGBoost-Spark only supports gbtree as booster type" + s" XGBoost-Spark only supports gbtree as booster type" +
" and grow_colmaker,prune as the updater type") " and grow_histmaker,prune as the updater type")
} }
val name = CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, paramName) val name = CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, paramName)
params.find(_.name == name) match { params.find(_.name == name) match {