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Spark Kudu - Caused by: org.apache.spark.sql.AnalysisException: Cannot up cast Database. Table. Column from string to bigint as it may truncate

By Dinesh

 

Spark Exception - 

Caused by: org.apache.spark.sql.AnalysisException: Cannot up cast <Database.TableName>.`ColumnName` from string to bigint as it may truncate
at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$17.apply(CheckAnalysis.scala:339)
        at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$17.apply(CheckAnalysis.scala:331)
        at scala.collection.immutable.List.foreach(List.scala:392)
        at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1.apply(CheckAnalysis.scala:331)
        at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1.apply(CheckAnalysis.scala:86)
        at org.apache.spark.sql.catalyst.trees.TreeNode.foreachUp(TreeNode.scala:128)
        at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$foreachUp$1.apply(TreeNode.scala:127)
        at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$foreachUp$1.apply(TreeNode.scala:127)


Description & Solution - 

We faced above error while running a Spark Job on a Hive View which was eventually created on a Hive-Kudu Table.

The solution that we applied to fix above error was to drop and re-create the view from Beeline / Hive Shell.

We analyzed that, if we create View from Impala then "show create table looks something like below"-

create view <view_name> as select * from <table1>;

Whereas, if we create view from Hive/ Beeline then "show create table looks something like below" -

create view <view_name> as select `<table1>`.`Column1`,`<table1>`.`Column2`, `<table1>`.`Column3` from <table1>;

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