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Posted to issues@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2019/02/14 23:38:00 UTC

[jira] [Resolved] (IMPALA-8187) UDF/UDA samples should explicitly export entry points

     [ https://issues.apache.org/jira/browse/IMPALA-8187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-8187.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: Impala 3.2.0

> UDF/UDA samples should explicitly export entry points
> -----------------------------------------------------
>
>                 Key: IMPALA-8187
>                 URL: https://issues.apache.org/jira/browse/IMPALA-8187
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>            Reporter: Tim Armstrong
>            Assignee: Tim Armstrong
>            Priority: Major
>             Fix For: Impala 3.2.0
>
>
> It's possible for UDF authors to get into a pickle by exporting symbols from UDF/UDA shared objects unintentionally. E.g. if using boost headers, which result in weak symbols in the .so, which then get merged with the (incompatible) symbols in the impalad binary.
> We should really be keeping symbols hidden by default then exporting the entry points explicitly in the UDF/UDA code



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