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From "Fabian Hueske (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-7490) UDF Agg throws Exception when flink-table is loaded with AppClassLoader
Date Wed, 15 Nov 2017 09:06:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Fabian Hueske updated FLINK-7490:
---------------------------------
    Priority: Blocker  (was: Major)

> UDF Agg throws Exception when flink-table is loaded with AppClassLoader
> -----------------------------------------------------------------------
>
>                 Key: FLINK-7490
>                 URL: https://issues.apache.org/jira/browse/FLINK-7490
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>    Affects Versions: 1.3.1, 1.4.0
>            Reporter: Miguel Rui Pereira Marques
>            Priority: Blocker
>             Fix For: 1.4.0
>
>
> When a UDF aggregation for the Batch Table API is defined in the FlinkUserCodeClassLoader
and the Table API itself is loaded in the AppClassLoader (the jar is included in the lib directory)
this exception is triggered:
> {panel:title=Exception}
> java.lang.Exception: The user defined 'open()' method caused an exception: Table program
cannot be compiled. This is a bug. Please file an issue.
> 	at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:485)
> 	at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:355)
> 	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:712)
> 	at java.lang.Thread.run(Thread.java:748)
> Caused by: org.apache.flink.api.common.InvalidProgramException: Table program cannot
be compiled. This is a bug. Please file an issue.
> 	at org.apache.flink.table.codegen.Compiler$class.compile(Compiler.scala:36)
> 	at org.apache.flink.table.runtime.aggregate.DataSetAggFunction.compile(DataSetAggFunction.scala:35)
> 	at org.apache.flink.table.runtime.aggregate.DataSetAggFunction.open(DataSetAggFunction.scala:49)
> 	at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36)
> 	at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:481)
> 	... 3 more
> Caused by: org.codehaus.commons.compiler.CompileException: Line 5, Column 13: Cannot
determine simple type name "org"
> 	at org.codehaus.janino.UnitCompiler.compileError(UnitCompiler.java:11672)
> 	at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6416)
> 	at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6177)
>         ...
> {panel}
> Upon inspecting the code I think this may be due to the usage of 'getClass.getClassLoader'
instead of 'getRuntimeContext.getUserCodeClassLoader' as an argument 'compile' in the method
'open' of class org.apache.flink.table.runtime.aggregate.DataSetAggFunction.



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