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Posted to issues@drill.apache.org by "Vitalii Diravka (JIRA)" <ji...@apache.org> on 2018/12/01 13:46:00 UTC
[jira] [Commented] (DRILL-6454) Native MapR DB plugin support for
Hive MapR-DB json table
[ https://issues.apache.org/jira/browse/DRILL-6454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16705831#comment-16705831 ]
Vitalii Diravka commented on DRILL-6454:
----------------------------------------
Hi Bridget.
It is necessary to add _*store.hive.maprdb_json.optimize_scan_with_native_reader*_ to Apache docs https://drill.apache.org/docs/configuration-options-introduction/
> Native MapR DB plugin support for Hive MapR-DB json table
> ---------------------------------------------------------
>
> Key: DRILL-6454
> URL: https://issues.apache.org/jira/browse/DRILL-6454
> Project: Apache Drill
> Issue Type: New Feature
> Components: Storage - Hive, Storage - MapRDB
> Affects Versions: 1.13.0
> Reporter: Vitalii Diravka
> Assignee: Vitalii Diravka
> Priority: Major
> Labels: doc-complete, ready-to-commit
> Fix For: 1.14.0
>
>
> Hive can create and query MapR-DB tables via maprdb-json-handler:
> [https://maprdocs.mapr.com/home/Hive/ConnectingToMapR-DB.html]
> The aim of this Jira to implement Drill native reader for Hive MapR-DB tables (similar to parquet).
> Design proposal is:
> - to use JsonTableGroupScan instead of HiveScan;
> - to add storage planning rule to convert HiveScan to MapRDBGroupScan;
> - to add system/session option to enable using of this native reader;
> - native reader can be used only for Drill build with mapr profile (there is no reason to leverage it for default profile);
>
> *For documentation:*
> two new options were added:
> store.hive.parquet.optimize_scan_with_native_reader: false,
> store.hive.maprdb_json.optimize_scan_with_native_reader: false,
> store.hive.parquet.optimize_scan_with_native_reader is new option used instead of store.hive.optimize_scan_with_native_readers. The latter is deprecated and will be removed in 1.15.
> (https://issues.apache.org/jira/browse/DRILL-6527).
>
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