Allowing Users with Select Permission to View the Table Structure

Scenario

This function is available in Hive and Spark2x in MRS 3.x and later.

With this function enabled, if the select permission is granted to a user during Hive table creation, the user can run the show create table command to view the table structure.

Procedure

1. The Hive service configuration page is displayed.
   • For versions earlier than MRS 3.x, click the cluster name. On the cluster details page that is displayed, choose Components > Hive > Service Configuration, and select All from the Basic drop-down list.
     

     If the Components tab is unavailable, complete IAM user synchronization first. (On the Dashboard page, click Synchronize on the right side of IAM User Sync to synchronize IAM users.)

   • For MRS 3.x or later, log in to FusionInsight Manager. For details, see Accessing FusionInsight Manager (MRS 3.x or Later). And choose Cluster > Name of the desired cluster > Services > Hive > Configurations > All Configurations.

2. Choose HiveServer(Role) > Customization, add a customized parameter to the hive-site.xml parameter file, set Name to hive.allow.show.create.table.in.select.nogrant, and set Value to true. Restart all Hive instances after the modification.
3. Determine whether to enable this function on the Spark/Spark2x client.
   • If yes, download and install the Spark/Spark2x client again.
   • If no, no further action is required.