[jira] [Assigned] (HIVE-20398) [Hive Metastore] Add a Configuration Item to Skip the HDFS Data Modification

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

     [ https://issues.apache.org/jira/browse/HIVE-20398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

wuchang reassigned HIVE-20398:
------------------------------


> [Hive Metastore] Add a Configuration Item to Skip the HDFS Data Modification
> ----------------------------------------------------------------------------
>
>                 Key: HIVE-20398
>                 URL: https://issues.apache.org/jira/browse/HIVE-20398
>             Project: Hive
>          Issue Type: Task
>          Components: Metastore
>    Affects Versions: 2.3.2
>            Reporter: wuchang
>            Assignee: wuchang
>            Priority: Major
>
> When we are conducting the hive upgrading,  we have following use case:
> We want to sync the operations between two metastore server (A and B) by thrift api, but both them are based on the same HDFS. So, for operations like *drop_partitions*, *drop_table*,  *insert_overwrite, create_table* which will cause the data modification in HDFS, we want it to be executed by only Metastore Server A. For metastore Server B, he will only change his metadata, but didn't do corresponding HDFS files operation.
> So, we need a switch to control this.
> like 
>  
> {code:java}
> hive.metastore.skip.hdfs{code}
> whose default value is *false* just like what is happening now.
> When its value is true, the metastore server will only conduct the metadata modification, but skip the HDFS data modification.
>  



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)