Downgrade the Knox Gateway to the Previous Version

If the Knox Gateway upgrade was unsuccessful, you need to downgrade Knox to the previous version to ensure you have a working Knox Gateway for your cluster. To downgrade Knox, follow the steps listed below.

For each server running Knox, stop the server.

su -l knox /usr/hdp/{current HDP server version}/knox/bin/gateway.sh stop

Select the HDP server version you want to use to downgrade your Knox Gateway.
```
hdp-select set knox-server {previous HDP server version}
```

Restart the server.

su -l knox /usr/hdp/{previous HDP server version}/knox/bin/gateway.sh start

​Downgrade the Knox Gateway to the Previous Version

Downgrade the Knox Gateway to the Previous Version