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Questions tagged [etcd3]

58 questions
11
votes
3 answers

etcdctl throws Error: context deadline exceeded error

I'm trying to create a one node etcd cluster on AWS using coreos cloud-config. I have created a Route53 recordset with value etcd.uday.com which has a alias to the ELB which points to the ec2 instance. Etcd is running successfully but when I run the…
Udaykiran R
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7
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2 answers

Why do I need to put ETCDCTL_API=3 in front of etcdctl for etcdctl snapshot save to work?

I did a customized installation of Kubernetes the hardway and installed it successfully on a 2 node cluster in Hyper V (1 master 1 worker), everything works, but there's this thing that makes me scratch my head and I was wondering if anyone could…
neoakris
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7
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1 answer

duplicate key given in txn request while trying to remove all keys by prefix and put them again

Trying to use coreos/jetcd for updating haproxy settings in etcd from Java-code. What I want to achieve is: remove all endpoints for single host add an updated data for given host I want to remove all keys by prefix and put actual data in etcd as…
Kirill
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5
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2 answers

How to use etcd v3 restful api to watch

i am trying to watch key with etcdv3 restful api,following etcd/Documentation/dev-guide/api_grpc_gateway.md,but it seems not work well with watch. curl http://localhost:2379/v3beta/watch \ -X POST -d '{"create_request": {"key":"Zm9v"} }' …
He Cheng
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5
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0 answers

Etcd watch different clients

I struggle with getting etcd watch working with combination of clients. What works: I do Watchin golang client and I do put also there. Then watch register change. If I use etcdctl in same way i.e. watch/listen both in command line it also…
svobol13
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5
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2 answers

start etcd failed by "bind: cannot assign requested address"

i run etcd as docker container ,and 10.132.41.234 is my host ip which i run docker container on ,and i get error info like this ,i do not know if it is right and i do now familiar with etcd,some one can help? thx! 2017-09-13 08:55:03.339612 I |…
user1208081
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3
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1 answer

kubernetes 1.18 Stacked control plane and etcd nodes unable to add second ETCD node

I am trying to setup 3 nodes Kubernets 1.18 on CentOS 8 with Containerd. following Stacked control plane and etcd nodes (https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/) document, I was able to setup the…
sfgroups
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3
votes
3 answers

etcd v3 can't read encoded values

I'm trying to retrieve values from etcd v3 in a kubernetes cluster. The values appear to be encoded and don't come back complete. When -w simple, the value comes back with a lot of question marks in little diamonds. When using -w json, the value…
Daniel Watrous
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3
votes
0 answers

coreos etcd 3 proxy gateway configuration

I am trying to setup etcd3 central cluster and nodes with proxy configuration. I am able to do this in etcd2 but how can i configure in etcd3 in coreos using etcd member.service it will be a great help if someone have example configuration. which…
user3585106
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3
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1 answer

Flannel compatiblity with etcd v3.0

I am planning to migrate our Kubernetes instance to etcd v3. Do you know if Flannel will work with etcd v3?
ekbek
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3
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1 answer

Detailed comparison between apache curator and etcd3

I have gone through the documentation of the latest release (released on 30th June,2016) of etcd3 which has many improvements over etcd2. It include, multiplexed streaming watches through a single TCP connection incremental snapshots to avoid…
Imesha Sudasingha
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2
votes
1 answer

Disable history in etcd key value store

Is there any way to disable the history saving in etcd? I am going to use etcd as KV for my app and I don't need history for the key values. When I search etcd, I couldn't find about disabling the history. I don't want to use the compacting feature…
Vijayakumar
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2
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0 answers

ETCD Client Watch Event Load Balancer

Is there an already made solution that allows for the load balancing of ETCD Watch events? The requested solution in question is as follows: "Client A" establishes a watch stream for key /app/status "Client B" establishes a watch stream for key…
PJConnol
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2
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1 answer

How to edit etcd configuration in an existing bare metal kubernetes cluster

I have a standalone Kuberenets cluster installed on some physical RHEL machine. I'm experiencing recurring crashes of etcd and kube-apiserver containers. From their logs, I managed to guess that I need to tune etcd to better perform in this…
Mugen
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2
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0 answers

Is it ok that Flanneld is listening on public interface udp port 8472?

Security-wise, is it OK, that flanneld is listening on the public interface udp port 8472? Normally kubernetes nodes live in the cloud, hidden behind dozens of firewalls, they mostly operate in their local virtual network and only expose ports to…
NarūnasK
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