[jira] [Commented] (HIVE-26793) Create a new configuration to override "no compaction" for tables

["Sai Hemanth Gantasala (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-26793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17680848#comment-17680848 ] 

Sai Hemanth Gantasala commented on HIVE-26793:
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This patch will cause build failures locally when compiled with thrift because this change [https://github.com/apache/hive/pull/3822/files#diff-944faa284e92a1090cd79c781b54acf30fb2ab29f78cf952576036f452577cf4R66]

The hive_metastoreConstants.java is generated file based on constants declared in hive_metastore.thrift class. Please make the desired change ([https://github.com/apache/hive/blob/master/standalone-metastore/metastore-common/src/main/thrift/hive_metastore.thrift#L3184]) in hive_metastore.thrift and then compile hive using thrift which would then generate the required change in hive_metastoreConstants.java class.

[~kokila19] Can you please raise an addendum patch with the above-suggested changes?

> Create a new configuration to override "no compaction" for tables
> -----------------------------------------------------------------
>
>                 Key: HIVE-26793
>                 URL: https://issues.apache.org/jira/browse/HIVE-26793
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Kokila N
>            Assignee: Kokila N
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 4h 50m
>  Remaining Estimate: 0h
>
> Currently a simple user can create a table with {color:#6a8759}no_auto_compaction=true{color} table property and create an aborted write transaction writing to this table. This way a malicious user can prevent cleaning up data for the aborted transaction, creating performance degradation.
> This configuration should be allowed to overridden on a database level: adding {color:#6a8759}no_auto_compaction=false{color} should override the table level setting forcing the initiator to schedule compaction for all tables.



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