Configuring spark-port-forwarder ports
The CDH/HDP cluster must have access to the Spark driver that runs on Cloudera Data Science Workbench hosts, on a set of randomized ports in the range, 20050-32767. You can customize this range to restrict the number of reserved ports.
- Log in to the Cloudera Manager Admin Console.
- On the Home > Status tab, click CDSW.
- Click the Configuration tab.
Scroll to the Minimum port configured for the
spark-port-forwarder field and enter the minimum port number you want to
The default minimum port numer is 20050. You cannot specify a port lower than this number.
In the Maximum port configured for the spark-port-forwarder
field, enter the maximum port number you want to reserve.
The maximum port number cannot be lower than the minimum port number. You must reserve a minimum of 100 ports for use. The maximum port number allowed is 32767.