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From rahul challapalli <challapallira...@gmail.com>
Subject Re: UDF is not recognized by drill / Validation Error
Date Thu, 19 May 2016 17:52:23 GMT
I could be repeating a few steps from the documentation, but let me know if
you already tried the below

  1. Did you add both the sources jar file and the classes jar file?
  2. And did you add them on every node?
  3. Assuming you did a restart after the above steps, can you check if
there is something in the *drillbit.out* file?

- Rahul

On Thu, May 19, 2016 at 3:31 AM, Julian Feinauer <julian.feinauer@web.de>
wrote:

> Dear folks,
>
> I’m currently experimenting with user defined functions in drill but I’m
> not able to get them to work on my drillbits.
> I always get the error: Error: VALIDATION ERROR: From line 1, column 8 to
> line 1, column 41: No match found for function signature myaddints(<ANY>,
> <ANY>).
>
> I already went through all the tips I found in the mailing list.
> The jar contains a drill-module.conf with the content:
> drill.classpath.scanning.packages += "org.julian"
> And the UDF is defined as:
> package org.julian;
>
> import ...
>
> @FunctionTemplate(name = „myaddints", scope =
> FunctionTemplate.FunctionScope.SIMPLE, nulls =
> FunctionTemplate.NullHandling.NULL_IF_NULL)
> public class IntIntAdd implements DrillSimpleFunc {
>
>     @Param
>     IntHolder in1;
>
>     @Param
>     IntHolder in2;
>
>     @Output
>     IntHolder out;
>
>     public void setup() {};
>
>     public void eval() {
>         out.value = in1.value + in2.value;
>     }
>
> }
> I tried to find the bug using the logs and encountered the following
> messages from the drillbit.log:
> Base Configuration:
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-common-1.6.0.jar!/drill-default.conf
>
> Intermediate Configuration and Plugin files, in order of precedence:
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-gis-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-logical-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-kudu-storage-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/3rdparty/drill-memory-base-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-hive-exec-shaded-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-memory-base-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-mongo-storage-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-java-exec-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-common-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-storage-hbase-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-jdbc-storage-1.6.0.jar!/drill-module.conf
>         -
> jar:file:/usr/local/Cellar/apache-drill/1.6.0/libexec/jars/drill-storage-hive-core-1.6.0.jar!/drill-module.conf
>
> which let’s me think that my jar file (drillUDF-1.0-SNAPSHOT.jar) is not
> scanned altough it is located in jars/3rdparty.
>
> Am I doing something wrong or am I missing something or has anyone a good
> hint for me?
>
> Thank you already!
> Julian

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