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From "Daniel Barclay (Drill) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-3520) Provide better logging around UDF loading and module loading
Date Mon, 20 Jul 2015 17:40:04 GMT

    [ https://issues.apache.org/jira/browse/DRILL-3520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14633884#comment-14633884
] 

Daniel Barclay (Drill) commented on DRILL-3520:
-----------------------------------------------

This DRILL-3520 might be partly covered by DRILL-3496 logging improvements (e.g., logging
detection of drill-module.conf files and the pattern of logging the finding of storage plug-ins,
functions, etc.).

> Provide better logging around UDF loading and module loading
> ------------------------------------------------------------
>
>                 Key: DRILL-3520
>                 URL: https://issues.apache.org/jira/browse/DRILL-3520
>             Project: Apache Drill
>          Issue Type: Sub-task
>            Reporter: Jacques Nadeau
>
> When adding an extension to Drill, sometimes it is hard to know what is going on.  We
should:
> - improve logging so that we report at INFO level information about all the Jar files
that were included in Drill's consideration set (marked) and those that are not. (and include
this debug analysis in the documentation)
> - If Drill fails to load a function, register an error function so that trying to invoke
the UDF will provide the user with information about why the function failed to load.



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