Hi Shelton,   I did find a note to add the partitions in another way.   Are you aware of it?   if so, do you see any issues with it.     Regards ~Suresh D   https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.1.4/using-hiveql/content/hive-automate-msck.html Automate partition discovery and repair Hive automatically and periodically discovers discrepancies in partition metadata in the Hive metastore and corresponding directories on the file system, and then performs synchronization. Automating this operation for log data or data in Spark and Hive catalogs is especially helpful. The discover.partitions table property enables and disables synchronization of the file system with partitions. In external partitioned tables, this property is enabled (true) by default when you create the table using Hive in HDP 3.1.4 and later. To a legacy external table (created using an earlier version of Hive), add discover.partitions to the table properties to enable partition discovery. By default, the discovery and synchronization of partitions occurs every 5 minutes, but you can configure the frequency as shown in this task. Assuming you have an external table created using a version of Hive that does not support partition discovery, enable partition discovery for the table. ALTER TABLE exttbl SET TBLPROPERTIES ('discover.partitions' = 'true'); Set synchronization of partitions to occur every 10 minutes expressed in seconds: In Ambari > Hive > Configs, set metastore.partition.management.task.frequency to 600. ... View more

Thank you Shelton for sharing.  I do not know about it.   I will run this command instead of adding the partitions with alter table command next time.     Thank you again. Suresh D   ... View more

Hi Shelton,   I have not run  " MSCK REPAIR TABLE table_name; " on the target table .  Not sure if it is needed.  Why we have to run that command.  My target table is working fine without running that command.   Regards ~Suresh D   ... View more

Thank you for following up on this.   Followed the below steps to copy the Hive external table successfully.      Steps: 1.  Created the target external table in new databases with the same definition of the source table, but with different location.    Extracted the definition of the source table with "show create table <Hive External  source table>" 2.  Copy the CSV files of source table location  to target table location with "hadoop fs -cp" 3.  Then added the partitions 72,883 partitions with the below Command.  I had to come up with a script for 72,833 partitions though.                                  "ALTER TABLE <Hive External Target Table> ADD PARTITION <Partition Name>;             Regards Suresh D ... View more