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https://issues.apache.org/jira/browse/IMPALA-10613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17347241#comment-17347241
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ASF subversion and git services commented on IMPALA-10613:
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Commit 5c85bf5c54fb1e0dffbe01b3f70c289de3700a66 in impala's branch
refs/heads/master from Vihang Karajgaonkar
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=5c85bf5 ]
Revert "Revert "IMPALA-10613: Standup HMS thrift server in Catalog""
This reverts commit 829d1a6ab4643b07877fb410971b67f1b1d1b045.
Additionally, this patch has couple of addendums which are related
to the original change:
1. Bug fix the original reverted commit which uses
isSetGetFileMetadata instead of isGetFileMetadata
(see https://gerrit.cloudera.org/#/c/17330/)
2. Fix for intermittent failures on CatalogHmsFileMetadataTest
due to the limitation of the catalogd's HMS client requirement
of need to set "hive.metastore.execute.setugi" to false.
Change-Id: Icbe93f3ae4efd585d4b0092a9ac7081b0b2c1c44
Reviewed-on: http://gerrit.cloudera.org:8080/17429
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Reviewed-by: Aman Sinha <amsi...@cloudera.com>
> 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
> Fix For: Impala 4.0
>
>
> 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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