Enabling a multi-threaded environment for Hue

A multi-threaded environment can help reduce the time it takes to migrate data from one database to other. By default, operations such as migrating data run on a single thread. For example, if you are switching from MySQL as the backend database for Hue to Oracle, then enabling a multi-threaded environment significantly reduces the data transfer time.

Log in to Cloudera Manager as an Administrator.
Go to Clusters > Hue service > Configuration > Hue Service Advanced Configuration Snippet (Safety Valve) for hue_safety_valve.ini.
Locate the [[database]] section under [desktop] and set threaded to true:
```
[desktop]
[[database]]
options={"threaded":true}
```
Click Save Changes.
Restart the Hue service.