Best way to take the back up of hive partitioned table into a disk
- Partitioning is the optimization technique in Hive which improves the performance significantly.
- Apache Hive is the data warehouse on the top of Hadoop, which enables ad-hoc analysis over structured and semi-structured data
- Apache Hive organizes tables into partitions.Partitioning is dividing a table into connected components based on the values of specific columns like date, city, and department.
- Each table in hive can have one or additional partition keys to identify a particular partition. using partition it is easy to do queries on slices of the data.
For copyToLocal the command syntax is:
Additionally, you can use Hive to copy data from a table to local directory.