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