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From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-22226) splitExpression can create too many method calls (generating a Constant Pool limit error)
Date Wed, 07 Feb 2018 01:40:02 GMT

     [ https://issues.apache.org/jira/browse/SPARK-22226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Li updated SPARK-22226:
----------------------------
    Issue Type: Sub-task  (was: Bug)
        Parent: SPARK-22510

> splitExpression can create too many method calls (generating a Constant Pool limit error)
> -----------------------------------------------------------------------------------------
>
>                 Key: SPARK-22226
>                 URL: https://issues.apache.org/jira/browse/SPARK-22226
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Marco Gaido
>            Assignee: Marco Gaido
>            Priority: Major
>             Fix For: 2.3.0
>
>
> Code generation for very wide datasets can fail because of the Constant Pool limit reached.
> This can be caused by many reasons. One of them is that we are currently splitting the
definition of the generated methods among several {{NestedClass}} but all these methods are
called in the main class. Since we have entries added to the constant pool for each method
invocation, this is limiting the number of rows and is leading for very wide dataset to:
> {noformat}
> org.codehaus.janino.JaninoRuntimeException: Constant pool for class org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificMutableProjection
has grown past JVM limit of 0xFFFF
> {noformat}



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