mirror of https://github.com/k3s-io/k3s
54 lines
2.1 KiB
Markdown
54 lines
2.1 KiB
Markdown
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<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
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<!-- BEGIN STRIP_FOR_RELEASE -->
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<h1>PLEASE NOTE: This document applies to the HEAD of the source
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tree only. If you are using a released version of Kubernetes, you almost
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certainly want the docs that go with that version.</h1>
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<strong>Documentation for specific releases can be found at
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[releases.k8s.io](http://releases.k8s.io).</strong>
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<!-- END STRIP_FOR_RELEASE -->
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<!-- END MUNGE: UNVERSIONED_WARNING -->
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# Cluster Troubleshooting
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Most of the time, if you encounter problems, it is your application that is having problems. For application
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problems please see the [application troubleshooting guide](../user-guide/application-troubleshooting.md).
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## Listing your cluster
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The first thing to debug in your cluster is if your nodes are all registered correctly.
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Run
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```
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kubectl get nodes
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```
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And verify that all of the nodes you expect to see are present and that they are all in the ```Ready``` state.
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## Looking at logs
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For now, digging deeper into the cluster requires logging into the relevant machines. Here are the locations
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of the relevant log files. (note that on systemd based systems, you may need to use ```journalctl``` instead)
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### Master
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* /var/log/kube-apiserver.log - API Server, responsible for serving the API
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* /var/log/kube-scheduler.log - Scheduler, responsible for making scheduling decisions
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* /var/log/kube-controller-manager.log - Controller that manages replication controllers
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### Worker Nodes
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* /var/log/kubelet.log - Kubelet, responsible for running containers on the node
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* /var/log/kube-proxy.log - Kube Proxy, responsible for service load balancing
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<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
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[]()
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<!-- END MUNGE: GENERATED_ANALYTICS -->
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