Kubelet collector
Kubelet
is an agent that runs on each node in the
cluster. It makes sure that containers are running in a pod.
This module will monitor one or more kubelet
instances, depending on your configuration.
Metrics
All metrics have "k8s_kubelet." prefix.
Metric | Scope | Dimensions | Units |
---|---|---|---|
apiserver_audit_requests_rejected | global | rejected | requests/s |
apiserver_storage_data_key_generation_failures | global | failures | events/s |
apiserver_storage_data_key_generation_latencies | global | 5µs, 10µs, 20µs, 40µs, 80µs, 160µs, 320µs, 640µs, 1280µs, 2560µs, 5120µs, 10240µs, 20480µs, 40960µs, +Inf | observes/s |
apiserver_storage_data_key_generation_latencies_percent | global | 5µs, 10µs, 20µs, 40µs, 80µs, 160µs, 320µs, 640µs, 1280µs, 2560µs, 5120µs, 10240µs, 20480µs, 40960µs, +Inf | percentage |
apiserver_storage_envelope_transformation_cache_misses | global | cache misses | events/s |
kubelet_containers_running | global | total | running_containers |
kubelet_pods_running | global | total | running_pods |
kubelet_pods_log_filesystem_used_bytes | global | a dimension per namespace and pod | B |
kubelet_runtime_operations | global | a dimension per operation type | operations/s |
kubelet_runtime_operations_errors | global | a dimension per operation type | errors/s |
kubelet_docker_operations | global | a dimension per operation type | operations/s |
kubelet_docker_operations_errors | global | a dimension per operation type | errors/s |
kubelet_node_config_error | global | experiencing_error | bool |
kubelet_pleg_relist_interval_microseconds | global | 0.5, 0.9, 0.99 | microseconds |
kubelet_pleg_relist_latency_microseconds | global | 0.5, 0.9, 0.99 | microseconds |
kubelet_token_requests | global | total, failed | token_requests/s |
rest_client_requests_by_code | global | a dimension per HTTP status code | requests/s |
rest_client_requests_by_method | global | a dimension per HTTP method | requests/s |
volume_manager_total_volumes | volume manager | actual, desired | state |
Configuration
Edit the go.d/k8s_kubelet.conf
configuration file using edit-config
from the
Netdata config directory, which is typically at /etc/netdata
.
cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/k8s_kubelet.conf
Needs only url
to kubelet
metric-address. Here is an example for 2 instances:
jobs:
- name: local
url: http://127.0.0.1:10255/metrics
- name: remote
url: http://203.0.113.10:10255/metrics
For all available options please see module configuration file.
Troubleshooting
To troubleshoot issues with the k8s_kubelet
collector, run the go.d.plugin
with the debug option enabled. The output
should give you clues as to why the collector isn't working.
Navigate to the
plugins.d
directory, usually at/usr/libexec/netdata/plugins.d/
. If that's not the case on your system, opennetdata.conf
and look for theplugins
setting under[directories]
.cd /usr/libexec/netdata/plugins.d/
Switch to the
netdata
user.sudo -u netdata -s
Run the
go.d.plugin
to debug the collector:./go.d.plugin -d -m k8s_kubelet
Do you have any feedback for this page? If so, you can open a new issue on our netdata/learn repository.