[jira] [Updated] (IMPALA-1957) Add verification tool for external data sources

["Tim Armstrong (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-1957?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated IMPALA-1957:
----------------------------------
    Priority: Trivial  (was: Minor)

> Add verification tool for external data sources
> -----------------------------------------------
>
>                 Key: IMPALA-1957
>                 URL: https://issues.apache.org/jira/browse/IMPALA-1957
>             Project: IMPALA
>          Issue Type: New Feature
>          Components: Infrastructure
>    Affects Versions: Impala 1.4, Impala 2.0
>            Reporter: Matthew Jacobs
>            Priority: Trivial
>              Labels: supportability
>
> It would be helpful to provide a tool to perform some sanity checks on external data sources.
> A few initial ideas:
> 1) Verify the data source handles various valid calling patters (e.g. Init()->Prepare()->GetNext()->Close(), Init()->Close(), Init()->Prepare()->Close()).
> 2) Verify returned structures are valid and internally consistent.
> 3) Check if the data source is leaking, e.g. can we load the jar, call the data source, unload the jar-- i.e. did any objects remain in memory such that the classloader couldn't be unloaded?



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