Disabling telemetry on existing Cloudera Data Hub clusters

This topic describes how to disable telemetry for Cloudera Data Hub clusters created and registered with telemetry enablement.

By disabling telemetry for Cloudera Data Hub clusters, the collection of diagnostic data is disabled for Cloudera environments for a Cloudera Data Hub service.

Verify that you have root SSH access to the Cloudera Manager Server node using a Cloudbreak SSH key pair.
Verify that you have a Cloudera user account with the Cloudera Manager Full Administrator role.

Disabling workload analytics🔗

If you have enabled workload analytics to send diagnostic information about job and query execution to Cloudera Observability for Cloudera Data Hub clusters created in any environment, then you must disable it before disabling Telemetry Publisher.

For the whole tenant:
- From the Cloudera web interface, navigate to Cloudera Management Console > Global Setings > Telemetry, turn off the Enable Workload Analytics option.
For a specific environment only:
- During environment creation from the Cloudera web interface, turn off the Enable Workload Analytics option under Logs Storage and Audits in the environment creation wizard.
- For an existing environment, from environment details > Telemetry, turn off the Enable Workload Analytics option.

The environment-level setting overrides the tenant-level setting.

Log in to Cloudera Manager, and verify that you have the Full Administrator role for the Cloudera Data Hub cluster that requires disabling telemetry by performing the following actions:

In a terminal, access the Cloudera Manager Server node with SSH using the Cloudbreak SSH key pair.

Grant the Workload user Full Administration privileges by running the following commands, replacing YOUR_CSSO_USER_HERE with the user that is performing the telemetry set up in Cloudera Manager, known as the Workload user:

# Switch to root
sudo -i

# Retrieve PostgreSQL credentials
export CM_SERVER_DB_FILE=/etc/cloudera-scm-server/db.properties
export CM_DB_HOST=$(awk -F"=" '/db.host/ {print $NF}' ${CM_SERVER_DB_FILE})
export CM_DB_NAME=$(awk -F"=" '/db.name/ {print $NF}' ${CM_SERVER_DB_FILE})
export CM_DB_USER=$(awk -F"=" '/db.user/ {print $NF}' ${CM_SERVER_DB_FILE})
export PGPASSWORD=$(awk -F"=" '/db.password/ {print $NF}' ${CM_SERVER_DB_FILE})

# Open psql
psql -h ${CM_DB_HOST} -U ${CM_DB_USER} -d ${CM_DB_NAME}

# Execute the following query
INSERT INTO user_auth_roles SELECT user_id, auth_role_id FROM users, auth_roles WHERE users.user_name=YOUR_CSSO_USER_HERE AND auth_roles.name='ROLE_ADMIN';

# To quit psql, type \q

To apply your changes, restart the Cloudera Manager server by running the following commands:

# Restart Cloudera Manager Server
systemctl restart cloudera-scm-server

# Check for Cloudera Manager WebUI readiness
tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log | grep -i 'started jetty server'

From the Cloudera Management Services page, remove the Telemetry Publisher role on the Cloudera Manager Server node by performing the following actions:
1. In Cloudera Manager, select Clusters and then locate and select Cloudera Management Service.
2. From the Status Summary section, select the Telemetry Publisher role.
3. From the Actions menu, select Stop this Telemetry Publisher.
  A confirmation message is displayed, click Stop this Telemetry Publisher. After it is successfully stopped, click Close.
  
  Telemetry publisher stops sending telemetry payload to the backend.
Click Save Changes.
Telemetry is disabled from the existing Cloudera Data Hub cluster.

Disabling telemetry on existing Cloudera Data Hub clusters

Disabling workload analytics🔗

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