FAILED: Service is not active. The server can't collect and send statistics to Centralized Monitoring if service cl_node_exporter isn't present, enabled and active.

Issue

• cldiag report received:

  Check service `node_exporter` is present, enabled and active:
  FAILED: Service is not active. 
  The server can't collect and send statistics to Centralized Monitoring 
  if service cl_node_exporter isn't present, enabled and active. Link to FAQ and troubleshooting https://docs.cloudlinux.com/cloudlinux-os-plus/#faq-2. Please write to support https://cloudlinux.zendesk.com/ if you can't resolve the issue.

• The following can be seen in logs:

  (CL+_sender_daemon) [ERROR] 'node_exporter'
  Traceback (most recent call last):
  File "/opt/alt/python37/lib/python3.7/site-packages/cl_plus/daemon/daemon.py", line 174, in _run_in_prod_mode
  self._check_disk_metrics_present(data_to_send)
  File "/opt/alt/python37/lib/python3.7/site-packages/cl_plus/daemon/daemon.py", line 255, in _check_disk_metrics_present
  node_exporter_metrics = metrics['node_exporter'].keys()
  KeyError: 'node_exporter'

Environment

• CloudLinux
• CentralizedMonitoring

Solution

Restart the node_exporter service running the below:

# service cl_node_exporter restart
# service lvestats start

Cause

node_exporter service was not started