Hi,

If I'm trying to execute the function split in Spark SQL

I get following error in some situations.

java.util.NoSuchElementException: key not found: split at
scala.collection.MapLike$class.default(MapLike.scala:228) at
scala.collection.AbstractMap.default(Map.scala:58) at
scala.collection.mutable.HashMap.apply(HashMap.scala:64) at
org.apache.spark.sql.catalyst.analysis.StringKeyHashMap.apply(FunctionRegistry.scala:92)
at
org.apache.spark.sql.catalyst.analysis.SimpleFunctionRegistry.lookupFunction(FunctionRegistry.scala:57)
at
org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveFunctions$$anonfun$apply$13$$anonfun$applyOrElse$5.applyOrElse(Analyzer.scala:465)
at
org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveFunctions$$anonfun$apply$13$$anonfun$applyOrElse$5.applyOrElse(Analyzer.scala:463)
at
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:222)
at
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:222)
at
org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:51)
at
org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:221)
at
org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$4.apply(TreeNode.scala:242)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:328) at
scala.collection.Iterator$class.foreach(Iterator.scala:727) at
scala.collection.AbstractIterator.foreach(Iterator.scala:1157) at
scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48) at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103)
at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:47)
at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:273) at
scala.collection.AbstractIterator.to(Iterator.scala:1157) at
scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:265)
at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1157) at
scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:252)
at scala.collection.AbstractIterator.toArray(Iterator.scala:1157) at
org.apache.spark.sql.catalyst.trees.TreeNode.transformChildrenDown(TreeNode.scala:272)
at
org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:227)
at 
org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$transformExpressionDown$1(QueryPlan.scala:75)
at
org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$1$$anonfun$apply$1.apply(QueryPlan.scala:90)

Here are the situation when it works and does not work -

1. Case 1 : SPARK_HOME in zeppelin-env.sh is not specified, spark.home in
interpreter UI is not specified - This does not work
2. Case 2 : SPARK_HOME in zeppelin-env.sh is not specified, spark.home in
interpreter UI is specified - This does not work
3. Case 3 : SPARK_HOME in zeppelin-env.sh is specified, spark.home in
interpreter UI is also specified - This does work
4. Case 4 : SPARK_HOME in zeppelin-env.sh is specified, spark.home in
interpreter UI is not specified - This does work

Any idea what is going on ?

Also wondering what is the order of precedence between APARK_HOME in
zeppelin-env.sh and spark.home in interpreter UI.

Regards,
Sourav
.

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