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https://issues.apache.org/jira/browse/IMPALA-10613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-10613 started by Vihang Karajgaonkar.
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> Expose table and partition metadata over HMS API
> ------------------------------------------------
>
> Key: IMPALA-10613
> URL: https://issues.apache.org/jira/browse/IMPALA-10613
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Vihang Karajgaonkar
> Assignee: Vihang Karajgaonkar
> Priority: Major
>
> Catalogd caches the table and partition metadata. If an external FE needs to
> be supported to query using the Impala, it would need to get this metadata
> from catalogd to compile the query and generate the plan. While a subset of
> the metadata which is cached in catalogd, is sourced from Hive metastore, it
> also caches file metadata which is needed by the Impala backend to create the
> Impala plan. It would be good to expose the table and partition metadata
> cached in catalogd over HMS API so that any Hive metastore client (e.g spark,
> hive) can potentially use this metadata to create a plan. This JIRA tracks
> the work needed to expose this information over catalogd.
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