Cloudera Data Science Workbench Command Line Reference

This topic describes the commands available with the Cloudera Data Science Workbench command line utility, cdsw. Running cdsw without any arguments will print a brief description of each command.
Command Description and Usage
cdsw init

Initializes and bootstraps the master node. Use this command to start Cloudera Data Science Workbench.

Also see, Additional Usage Notes
cdsw start

Run on the master node to start application components.
cdsw stop

Run on the master node to stop application components.
cdsw restart

Run on the master node to restart application components.

To restart a worker node, use cdsw reset, followed by cdsw join. These commands have been explained further in this topic.
cdsw reset

De-registers and resets a node.

On a worker node, this command will remove the worker from the cluster.

On the master node, this command will bring down the application and effectively tear down the Cloudera Data Workbench deployment.
cdsw enable <worker_IP>

Gives a worker node access to the NFS mount on master. Run this command on the master node and pass the worker node's IP address as an argument.
cdsw disable <worker_IP>

Disables a worker node's access to the NFS mount on master. Run this command on the master node and pass the worker node's IP address as an argument.
cdsw join

Initializes a worker node. After a worker node’s IP has been whitelisted on the master (using cdsw enable), run this command on the worker node to add it to the Cloudera Data Science Workbench cluster.

This registers the worker nodes with the master, and increases the available pool of resources for workloads.
cdsw status

Displays the current status of the application.
cdsw validate

Performs diagnostic checks for common errors that might be preventing the application from running as expected.

This command should typically be run as the first step to troubleshooting any problems with the application, as indicated by cdsw status.
cdsw logs

Creates a tarball with diagnostic information for your Cloudera Data Science Workbench installation.

If you file a case with Cloudera Support, run this command on each node and attach the resulting bundle to the case.

For more details on the information collected in these bundles, see Data Collection in Cloudera Data Science Workbench.
cdsw version

Displays the version number of Cloudera Data Science Workbench.

Additional Usage Notes

Changes to cdsw.conf: Make sure cdsw.conf is consistent across all Cloudera Data Science Workbench nodes. Any changes made to the file must be copied over to all the other nodes.
  • Master Node - Changes to the JAVA_HOME, MASTER_IP, DOCKER_BLOCK_DEVICES, and APPLICATION_BLOCK_DEVICE parameters in cdsw.conf require a re-initialization of the master node. 
    cdsw reset
cdsw init
    Changes to other cdsw.conf parameters such as domain name changes, or TLS and HTTP proxy changes, require a restart of the application components. 
    cdsw restart
  • Worker Node - Changes to cdsw.conf on a worker node, require a restart of the worker node as follows: 
    cdsw reset
cdsw join