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Fixing etcdDatabaseHighFragmentationRatio prometheus alert

Sep 3, 2022 1 min read k8splaybooketcdprometheus

If you receive a following error in alertmanager

1etcd cluster "kube-etcd": database size in use on instance xxx.xxx.xxx.xxx:2381
2is 49.55% of the actual allocated disk space, please run defragmentation 
3(e.g. etcdctl defrag) to retrieve the unused fragmented disk space.

it can be easily solved by running a...

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Prometheus - kube-proxy endpoint connection refused

May 30, 2022 1 min read k8sprometheusmonitoringk8s

When using kube-prometheus-stack and kubernetes cluster provisioned by kubeadm you will likely have an issue of prometheus not being able to connect to the kube-proxy metrics

It can be easily fixed by editing it’s config map

kubectl edit cm/kube-proxy -n kube-system

Change the metricsBindAddress property from...

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Alexander Chernov
Alexander Chernov
Gopher, PHPer, Devops, SRE
Uk

Recent Posts

  • xcrun: error: invalid active developer path
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  • Fixing etcdDatabaseHighFragmentationRatio prometheus alert

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