Opsview - Remove a collector from a cluster

This article describes how to remove a collector from a collector cluster that has more than one collector. If you want to remove a collector from a cluster that has only one collector, please see our guide on removing a collector cluster instead.

Prerequisites

• You have an existing collector cluster which has enough collectors such that, after removing a collector, it still has a supported number of collectors.

Process

1. Log in to the Opsview UI as an administrator and navigate to Configuration > Monitoring Collectors > Clusters.
2. Click the cluster’s contextual menu button and click Edit.
3. Adjust the collector selection to remove the desired collector. Selected collectors are highlighted in gray. You can CTRL + click to deselect individual collectors.
    
4. Click Submit Changes.
5. Switch to the Collectors tab.
6. Click the collector’s contexual menu button and click Delete.
7. Apply Changes.
8. Edit your deploy files, located in /opt/opsview/deploy/etc/, and either comment out or remove the configuration pertaining to the deleted collector.

Configuration that may need updating includes:

• collector cluster configuration in opsview_deploy.yml
• SSH tunnel configuration in user_vars.yml.

9. Run the setup-everything.yml playbook against the entire cluster using opsview-deploy:

/opt/opsview/deploy/bin/opsview-deploy -l opsview_cluster_<cluster> /opt/opsview/deploy/lib/playbooks/setup-everything.yml