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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2017/07/08 05:59:00 UTC

[jira] [Resolved] (SPARK-21337) SQL which has large ‘case when’ expressions may cause code generation beyond 64KB

     [ https://issues.apache.org/jira/browse/SPARK-21337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-21337.
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    Resolution: Cannot Reproduce

I am resolving this per above comment and I could not reproduce this against master with the reproducer above. If it is just an improvement without any behaviour change, I believe we should backport it after identifying the JIRA fixing this.

> SQL which has large ‘case when’ expressions may cause code generation beyond 64KB
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-21337
>                 URL: https://issues.apache.org/jira/browse/SPARK-21337
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.1
>         Environment: spark-2.1.1-hadoop-2.6.0-cdh-5.4.2
>            Reporter: fengchaoge
>             Fix For: 2.1.1
>
>
> when there are large 'case when ' expressions in spark sql,the CodeGenerator failed to compile it. 
> Error message is followed by a huge dump of generated source code,at last failed.
> java.util.concurrent.ExecutionException: java.lang.Exception: failed to compile: org.codehaus.janino.JaninoRuntimeException: Code of method &quot;apply_9$(Lorg/apache/spark/sql/catalyst/expressions/GeneratedClass$SpecificUnsafeProjection;Lorg/apache/spark/sql/catalyst/InternalRow;)V&quot; of class &quot;org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection&quot; grows beyond 64 KB.
> It seems that SPARK-13242 has solved this problem in spark-1.6.2,however it  apparence in spark-2.1.1 again. https://issues.apache.org/jira/browse/SPARK-13242.
> is there something wrong ? 



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