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Move some docs from docs/ top-level into docs/{admin/,devel/,user-guide/}.

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This commit is contained in:
David Oppenheimer
2015-07-14 22:07:44 -07:00
parent cdc74dde4c
commit 8d5eb03c7b
28 changed files with 58 additions and 58 deletions
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docs/admin/cluster-troubleshooting.md Normal file
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<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
<!-- BEGIN STRIP_FOR_RELEASE -->
![WARNING](http://kubernetes.io/img/warning.png)
![WARNING](http://kubernetes.io/img/warning.png)
![WARNING](http://kubernetes.io/img/warning.png)
<h1>PLEASE NOTE: This document applies to the HEAD of the source
tree only. If you are using a released version of Kubernetes, you almost
certainly want the docs that go with that version.</h1>
<strong>Documentation for specific releases can be found at
[releases.k8s.io](http://releases.k8s.io).</strong>
![WARNING](http://kubernetes.io/img/warning.png)
![WARNING](http://kubernetes.io/img/warning.png)
![WARNING](http://kubernetes.io/img/warning.png)
<!-- END STRIP_FOR_RELEASE -->
<!-- END MUNGE: UNVERSIONED_WARNING -->
# Cluster Troubleshooting
Most of the time, if you encounter problems, it is your application that is having problems. For application
problems please see the [application troubleshooting guide](../user-guide/application-troubleshooting.md).
## Listing your cluster
The first thing to debug in your cluster is if your nodes are all registered correctly.
Run
```
kubectl get nodes
```
And verify that all of the nodes you expect to see are present and that they are all in the ```Ready``` state.
## Looking at logs
For now, digging deeper into the cluster requires logging into the relevant machines. Here are the locations
of the relevant log files. (note that on systemd based systems, you may need to use ```journalctl``` instead)
### Master
* /var/log/kube-apiserver.log - API Server, responsible for serving the API
* /var/log/kube-scheduler.log - Scheduler, responsible for making scheduling decisions
* /var/log/kube-controller-manager.log - Controller that manages replication controllers
### Worker Nodes
* /var/log/kubelet.log - Kubelet, responsible for running containers on the node
* /var/log/kube-proxy.log - Kube Proxy, responsible for service load balancing
<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/docs/admin/cluster-troubleshooting.md?pixel)]()
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