Why is it that you use MySQL in hive?

　　

To say, Hive is just a tool, including its data analysis, which relies on mapreduce, its data management, and relies on external systems.

　　

　　

metastore_db, the directory under which the data is to be run and where it is generated.

Thus, under which path you execute the Hive directive, the metastore_db is generated under which path. Building a database file is extremely inappropriate, and if everyone in the company is different, it will look very mixed. Prevents public communication between employees.

for this, it needs to be common, MySQL.

This is why it is also necessary to configure MySQL when installing hive.

Why is it that you use MySQL in hive?