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Questions tagged [etcd]

etcd is a highly-available key value store for shared configuration and service discovery, inspired by Apache ZooKeeper and doozer.

etcd is a highly-available key value store for shared configuration and service discovery, inspired by Apache ZooKeeper and doozer, with a focus on being:

  • Simple: curl'able user facing API (HTTP+JSON)
  • Secure: optional SSL client cert authentication
  • Fast: benchmarked 1000s of writes/s per instance
  • Reliable: properly distributed using Raft

etcd is written in Go and uses the Raft consensus algorithm to manage a highly-available replicated log.

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Is the information stored inside GKE "etcd" encrypted?

I am using GKE(Google Kubernetes Engine) 1.13.6-gke.6 and I need to provide etcd encryption evidence for PCI purposes. I have used --data-encryption-key flag and used a KMS key to encrypt secrets following this documentation. I need to give a set of…
Amit Yadav
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In a Kubernetes cluster, is there a way to migrate etcd from external to internal?

I made a Kubernetes cluster one year ago with an external etcd cluster (3 members). A the time, I did not know that it was possible to make an etcd internal, so I made an external cluster and connected Kubernetes to it. Now I am seeing that an…
Nurza
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Where does ConfigMap data gets stored?

I created ConfigMap using kubectl and I can also see it using: kubectl get cm I am just curious where kubernetes stores this data/information within the cluster? Does it store in etc? How do I view it, if it stored in etcd? Does it store in any…
Ramesh
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How to backup etcd on a Kubernetes cluster created with kubeadm - rpc error: code = 13

I have a K8s cluster created with kubeadm that consists of a master node and two workers. I am following this documentation article regarding the etcd backup:…
codependent
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What is Kubernetes HA cluster failure behaviour in split-brain scenarios between racks?

I am interested in the behaviour of multi-master Kubernetes in the event of different types of failure, particularly if the masters are on different racks. Scenario: 2 racks, R1, R2. API Masters: M1 on R1, M2 on R2. Worker nodes: W1 on R1, W2…
John
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How fix this error "watch chan error: etcdserver: mvcc: required revision has been compacted"?

I have a kubernetes cluster with two nodes, and two nodes for etcd,also I am using authentication for my kubernetes. When I run this command: kubectl get cs I get this output: NAME STATUS MESSAGE …
Ladan Nekuii
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Docker Swarm with etcd

If Docker in the Swarm mode has a built-in discovery system, what is the advantage of running Swarm mode using another service discovery like etcd ?
4m1nh4j1
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etcd cluster id mistmatch

Hey I have a cluster id mismatch for some reason, i had it on 1 node then disapperead after clearing data dir few times , changing cluster token and node names, but apperead on another here is the script i…
davidear
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How do Kubernetes modules communicate with etcd?

I know that Kubernetes has 5 modules: kube-apiserver, kube-controller-manager, kube-scheduler in Master nodes and kubelet, kube-proxy in Minion nodes. How do they communicate with etcd? Will they all query or set data in etcd? or only some of them…
Yang Luo
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etcd error when trying to start service rejected send message

I am using ubuntu 14.04 and Im configuring etcd for use with calico, but the service does not work. This is my etcd.conf file: # vim:set ft=upstart ts=2 et: description "etcd" author "etcd maintainers" start on stopped rc RUNLEVEL=[2345] stop on…
Asier Gomez
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Kubernetes deployment on local Ubuntu cluster

I'm simply trying to install Kubernetes on local Ubuntu cluster using the original documentation.(http://kubernetes.io/docs/getting-started-guides/ubuntu/). The problem is that when i try the kube-up, after creating the binaries, i get the following…
CAdrian
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Etcd cluster setup failure

I am trying to setup 3 node etcd cluster on Ubuntu machines as docker data store for networking. I successfully created etcd cluster using etcd docker image. Now when I am trying to replicate it, the steps fail on one node. Even after removing the…
pmann
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Can Pod/Service still work if kube-master or etcd service down?

If kube-master or etcd service down in my kubernetes cluster, can my Pod/Service still work? Also, if the network is still work?
X.G
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etcd - Is it possible to setup pubsub using etcd?

I would like to setup etcd / redis to store configuration params, applicable to all the docker containers (right now, only within a single host). Would very much also need pub/sub mechanism - so that issuing certain commands is easy (like 'do git…
rsmoorthy
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CoreOS, Fleet and Etcd2 fault tolerance

I have a 23 node cluster running CoreOS Stable 681.2.0 on AWS across 4 availability zones. All nodes are running etcd2 and flannel. Of the 23 nodes, 8 are dedicated etcd2 nodes, the rest are specifically designated as etcd2 proxies. Scheduled to the…
Paul Severance
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