Sign in I looked through etcdctl member add and it looks like it's miscomputing ETCD_INITIAL_CLUSTER which could cause a cluster id mismatch. ^C | ID | STATUS | NAME | PEER ADDRS | CLIENT ADDRS | Also, you can change some code in etcd to debug this error. privacy statement. If it's helpful, we don't currently support having etcd nodes connect to each other via their External IPs. openshift-compute-0 Ready worker 3h58m v1.24.0+9546431 We may enable it at some point in the future. EtcdCertSignerControllerDegraded: [Operation cannot be fulfilled on secrets "etcd-peer-sno-0": the object has been modified; etcd-ip-10-0-133-53.ec2.internal 3/3 Running 0 7m49s Ask Question Asked 2 years, 10 months ago Modified 2 years, 10 months ago Viewed 2k times 2 In my project we have etcd DB deployed on Kubernetes (this etcd is for application use, separate from the Kubernetes etcd) on on-prem. kind: BareMetalHost If you're adding new nodes to a cluster that has not been upgraded, you need to be sure to specify the version when installing. {log:2019-02-09 02:25:00.510716 E | etcdhttp: etcdserver: request timed out, possibly due to connection lost [merged 7 repeated lines in 1.58s]\n,stream:stderr,time:2019-02-09T02:25:00.510897523Z}, Powered by Discourse, best viewed with JavaScript enabled. Obtain the machine for the unhealthy member. 2021-01-12T23:03:51.721Z [INFO] proxy environment: http_pro. It is important to take an etcd backup before performing this procedure so that your cluster can be restored if you encounter any issues. member d5dbb2d2eacdec65 is unreachable: [https:// kubernetes-etcd-2:2379] are all unreachable The known list is defined in the, If there are no active nodes, the bootstrap process will elect the first node in the, Check and ensure that the first node of the, For deployments with the Ondat operator you can specify which nodes to deploy Ondat on using, For more information on how to configure the Ondat Custom Resource, review the, For more advanced deployments that are using. By clicking Sign up for GitHub, you agree to our terms of service and
openshift-control-plane-0 externally provisioned examplecluster-control-plane-0 true 4h48m Sign up for a free GitHub account to open an issue and contact its maintainers and the community. The root cause seems to be some missing RBAC for this node. privacy statement. etcd-serving-ip-10-0-131-183.ec2.internal kubernetes.io/tls 2 47m # Describe the daemonset and grep for "JOIN". Removing a failed etcd node Before you add a new etcd node, remove the failed one. it's apparent to me now that there's an issue with the WSL host's NAT address being used rather than the external IP I provided. During this process, there are certain strange issues/behavior observed. Although I got this to show up as Ready, attempting to schedule a pod on the node fails: and the k3s agent process i was running has this output: is the service node port range always expected to be non-empty? first and second masters have been created successfully but third NO, and I try create it on several VM, but this fall down with the same error: Additional context / logs: +------------------+---------+------------------------------+---------------------------+---------------------------+ Kuryr was not able to detect the new Neutron Port created and create the respective Load Balancer member for the default kubernetes Load Balancer. You signed in with another tab or window. examplecluster-compute-0 Running 165m openshift-compute-0 baremetalhost:///openshift-machine-api/openshift-compute-0/3d685b81-7410-4bb3-80ec-13a31858241f provisioned Move the existing etcd pod file out of the kubelet manifest directory: Move the etcd data directory to a different location: Choose a pod that is not on the affected node. When the etcd cluster Operator performs a redeployment, it ensures that all control plane nodes have a functioning etcd pod. PING kubernetes-etcd-2.rancher.internal (10.42.19.155) 56(84) bytes of data. All servers join the cluster. Depending on the state of your unhealthy etcd member, use one of the following procedures: Replacing an unhealthy etcd member whose machine is not running or whose node is not ready, Replacing an unhealthy etcd member whose etcd pod is crashlooping, Replacing an unhealthy stopped baremetal etcd member. Permitting a member add when the cluster is unhealthy is clearly broken and the fix for that, which is safe, is already inflight. {log:2019-02-09 02:17:23.965983 I | fileutil: purged file /pdata/data.current/member/snap/0000000000000002-0000000000055755.snap successfully\n,stream:stderr,time:2019-02-09T02:17:23.966242969Z} examplecluster-compute-1 Running 165m openshift-compute-1 baremetalhost:///openshift-machine-api/openshift-compute-1/0fdae6eb-2066-4241-91dc-e7ea72ab13b9 provisioned, NAME STATUS ROLES AGE VERSION Recovering from expired control plane certificates", Red Hat JBoss Enterprise Application Platform, Red Hat Advanced Cluster Security for Kubernetes, Red Hat Advanced Cluster Management for Kubernetes, 2.2. If WSL was an agent, would it require etcd? The steps to replace an unhealthy etcd member depend on which of the following states your etcd member is in: The machine is not running or the node is not ready. We have docs talking about the exact same problem you faced, and provide detailed instructions here: https://github.com/coreos/etcd/blob/master/Documentation/op-guide/runtime-configuration.md#replace-a-failed-machine. +------------------+---------+------------------------------+---------------------------+---------------------------+, Member 62bcf33650a7170a removed from cluster ead669ce1fbfb346, +------------------+---------+------------------------------+---------------------------+---------------------------+ ip-10-0-164-97.ec2.internal Ready master 6h13m v1.22.1 The etcd cluster Operator will automatically sync when the machine or node returns to a healthy state. This issue has been automatically marked as stale because it has not had recent activity. This means that all servers need to be on a relatively flat network. root@e46cc2c6d07d:/opt/rancher# ping kubernetes-etcd-2 Replacing the unhealthy etcd member", Expand section "3. clustername-8qw5l-worker-us-east-1c-pkg26 Running m4.large us-east-1 us-east-1c 3h28m ip-10-0-170-181.ec2.internal aws:///us-east-1c/i-06861c00007751b0a running, NAME PHASE TYPE REGION ZONE AGE NODE PROVIDERID STATE [3 healthy nodes] --> | 757b6793e2408b6c | started | ip-10-0-164-97.ec2.internal | https://10.0.164.97:2380 | https://10.0.164.97:2379 | I totally agree the current workflow around quorum loss is crummy. Have a question about this project? {log:time=2019-02-09T02:09:55Z level=info msg=Created backup name=2019-02-09T02:09:54Z_etcd_1 runtime=354.277648ms \n,stream:stderr,time:2019-02-09T02:09:55.032899272Z} 2.2. +------------------+---------+------------------------------+---------------------------+---------------------------+ An AWS instance failed that's running etcd 2.3.7 in a container. Verify that all etcd pods are running properly. Choose a pod that is not on the affected node: In a terminal that has access to the cluster as a cluster-admin user, run the following command: Connect to the running etcd container, passing in the name of a pod that is not on the affected node: Take note of the ID and the name of the unhealthy etcd member, because these values are needed later in the procedure. openshift-control-plane-2 Ready master 12m v1.24.0+9546431 name: openshift-control-plane-2 kubernetes-etcd-2.rancher.internal ping statistics After this machine is recreated, a new revision is forced and etcd scales up automatically. | 8d5abe9669a39192 | started | openshift-control-plane-1 | https://192.168.10.10:2380 | https://192.168.10.10:2379 | false | # Check for the pod with the "172.28.128.3" IP address. | ID | STATUS | NAME | PEER ADDRS | CLIENT ADDRS | member 83cf4246c8e69b21 is healthy: got healthy result from https:// kubernetes-etcd-3:2379 What we can do is as @heyitsanthony suggested: avoid users from further damaging their clusters in case of some failures. But over time (after a few hours) it becomes unhealthy again. Shutting down the cluster gracefully", Collapse section "3. If there is a valid reason, we might reconsider your suggestion. Specify the name of the master machine for the unhealthy node. 8 comments michael-px commented on Aug 4, 2016 xiang90 closed this as completed on Aug 9, 2016 changed the title can't add or remove node in unhealthy cluster Can't add or remove node in unhealthy cluster on Sep 29, 2016 | ID | STATUS | NAME | PEER ADDRS | CLIENT ADDRS | IS LEARNER | Restoring to a previous cluster state", Expand section "5.4. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. When the etcd cluster Operator performs a redeployment, it ensures that all master nodes have a functioning etcd pod. ^C You have identified the unhealthy bare metal etcd member. Turn the quorum guard back on by entering the following command: You can verify that the unsupportedConfigOverrides section is removed from the object by entering this command: If you are using single-node OpenShift, restart the node. Description oarribas. According to various posts, this is due to the cluster being unhealthy. You have verified that the etcd pod is crashlooping. You are experiencing an issue where nodes cannot successfully join the cluster. The etcd cluster Operator will automatically sync when the machine or node returns to a healthy state. {level:warn,ts:2021-01-18T23:15:20.701Z,caller:clientv3/retry_interceptor.go:61,msg:retrying of unary invoker failed,target:endpoint://client-788e8e41-18b4-4554-b0be-8dfcda3cd540/vault-etcd.sedvip-dev.svc.cluster.local:2379,attempt:0,error:rpc error: code = Canceled desc = context canceled} i tried shutting off the ubuntu.localdomain host, and was still able to run things like kubectl get pods --all-namespaces so i'm not sure what a missing control-plane means. After the inspection is complete, the BareMetalHost object is created and available to be provisioned. | 8d5abe9669a39192 | started | openshift-control-plane-1 | https://192.168.10.10:2380/ | https://192.168.10.10:2379/ | false | in the process i was able to verify point 1 of your response. Make sure that the JOIN variable doesn't specify the master nodes. Etcd cluster becomes unhealthy Rancher 1.x beejalsFebruary 12, 2019, 2:24pm #1 I have deployed a kubernetes cluster using Rancher 1.6.25 Everything comes up fine and etcd cluster (3 node cluster) is healthy root@e46cc2c6d07d:/opt/rancher# etcdctl cluster-health If you have lost the majority of your control plane hosts, follow the disaster recovery procedure to restore to a previous cluster state instead of this procedure. Are you running mismatched versions on purpose? member 4d86f9c7df30ee86 is unhealthy: got unhealthy result from https:// kubernetes-etcd-1:2379 {level:warn,ts:2021-01-18T23:11:26.173Z,caller:clientv3/retry_interceptor.go:61,msg:retrying of unary invoker failed,target:endpoint://client-788e8e41-18b4-4554-b0be-8dfcda3cd540/vault-etcd.sedvip-dev.svc.cluster.local:2379,attempt:1,error:rpc error: code = DeadlineExceeded desc = context deadline exceeded} The server needs to be the same version as the agent or newer. Result:
| ID | STATUS | NAME | PEER ADDRS | CLIENT ADDRS | IS LEARNER | externallyProvisioned: false The node should be removed from the cluster, the state directory should be cleaned and the node should be re-added. Anyways, this goes on for a few minutes, and then I guess this causes the restart: etcdserver/api/etcdhttp: /health error; QGET failed etcdserver: request timed out (status code 503) If the machine is running and the node is ready, then check whether the etcd pod is crashlooping. Be sure to remove the correct etcd member; removing a good etcd member might lead to quorum loss. Otherwise, you must create the new master using the same method that was used to originally create it. i was running 1.20.4 on the ubuntu vm because that's what the installer pulled down by default. It is recommended to keep the same base name as the old machine and change the ending number to the next available number. Check the status of the EtcdMembersAvailable status condition using the following command: This example output shows that the ip-10-0-131-183.ec2.internal etcd member is unhealthy. Identifying an unhealthy etcd member, 2.3. Delete the BareMetalHost object by running the following command, replacing with the name of the bare-metal host for the unhealthy node: Delete the machine of the unhealthy member by running the following command, replacing with the name of the control plane machine for the unhealthy node, for example clustername-8qw5l-master-0: Create the new machine using the new-master-machine.yaml file: Verify that the new machine has been created: It might take a few minutes for the new machine to be created. Update the metadata.selfLink field to use the new machine name from the previous step. 1 etcd is a fast, reliable and fault-tolerant key-value database. using the same version on the agent i was able to get pods running. Prerequisites Access to the cluster as a user with the cluster-admin role. The text was updated successfully, but these errors were encountered: Here are some of the logs we are noticing in the etcd pods continuously. Restoring to a previous cluster state", Collapse section "5.3. Description of problem: Following the procedure to replace an unhealthy etcd member [1], the master node was stuck on deletion, with a similar issue than BZ [2]. It will be closed after 21 days if no further activity occurs. Fix:
+------------------+---------+--------------------+---------------------------+---------------------------+-------------------------+, etcd-peer-openshift-control-plane-2 kubernetes.io/tls 2 134m Delete and recreate the master machine. openshift-control-plane-1 Ready master 3h24m v1.24.0+9546431 In summary: always remove first, add later. It is quite important to have the experience to back up and restore the operability of both individual nodes and the whole entire etcd cluster. Ondat Rolling Upgrades Protection For Orchestrators, Rancher Kubernetes Engine (RKE) via Marketplace, Etcd outside the cluster - Best Practices, How To Backup & Restore Using Snapshots with CloudCasa, How To Backup & Restore Using Snapshots with Kasten K10, How To Check The Health Status Of Your Cluster, How To Create ReadWriteMany (RWX) Volumes, How To Downgrade Ondat from 'v2.7.0' to 'v2.6.0', How To Enable Data Encryption For Volumes, How To Enable Topology-Aware Placement (TAP), How To Safely Shut Down & Start Up A Cluster, How to Set Ondat Container Resource Requests and Limits, How To Setup A Centralised Cluster Topology, Ondat Command Line Interface (CLI) Utility, Ondat Open Source Software Attribution Notice, Solution - Cannot Perform Operations To Volumes Or Nodes, Solution - Deployment Using A RWX Volume Is Stuck In A 'ContainerCreating' State, Solution - Troubleshooting 'failed to dial all known cluster members' Error When Provisioning Volumes, Solution - Troubleshooting 'failed to get secret from' Error When Provisioning Volumes, Solution - Troubleshooting 'Init:Error' Status Error Message After Deploying Ondat, Solution - Troubleshooting 'liocheck: FAIL (platform not supported, see previous error messages)' Error Message After Deploying Ondat, Solution - Troubleshooting 'no such file or directory' Error Message When Mounting A Volume To A Pod, Solution - Troubleshooting 'OutOfRange desc = unsupported capacity size' Error When Provisioning Volumes, Solution - Troubleshooting 'unable to connect to etcd' Error Message, Solution - Troubleshooting 'unable to validate against any security context constraint' Error When Deploying Into A OpenShift Cluster, Solution - Troubleshooting 'unregistered licence period has expired' Error Message, Solution - Troubleshooting 'UUID has already been registered and has hostname' Error, Solution - Troubleshooting etcd '503 Service Unavailable' Error Message During Peer Discovery, Solution - Troubleshooting etcd 'failed to join existing cluster' Error Message During Peer Discovery, Solution - Troubleshooting Insufficient Free Space On Storage Disks Attached To Nodes, Solution - Troubleshooting Ondat Daemonset 'CrashLoopBackOff' Pod States After Re-installing Ondat, Solution - Troubleshooting Permission Errors When Deploying Into A GKE Cluster, Solution - Unable To Apply Parameters To An Existing StorageClass Object, Solution - Unable To Mount RWX Volumes To A Pod, Taints and Tolerations - Kubernetes Documentation, Assign Pods to Nodes - Kubernetes Documentation, The error demonstrated in the code snippet above indicates that the node cant connect to any of the nodes in the known list. You can identify if your cluster has an unhealthy etcd member. i removed the WSL node and added 2 k3os nodes - one on a raspberry pi and one on a k3os vm on proxmox. if that's helpful in debugging. | cc3830a72fc357f9 | started | openshift-control-plane-0 | https://192.168.10.9:2380 | https://192.168.10.9:2379 | false | 2021-01-19 01:01:38.437900 I | auth: deleting token TQIeTjyjmSBnEkKy.1167591 for user root, Some more information from the K8 events of ETCD instance. This process depends on whether the etcd member is unhealthy because the machine is not running or the node is not ready, or whether it is unhealthy because the etcd pod is crashlooping. it seems to only affect the 2nd raspberry pi that i've added. Suggestions to do this have been met with "no, we won't do that". thanks for all your help! {log:2019-02-09 01:59:09.215785 I | etcdserver: saved snapshot at index 390042\n,stream:stderr,time:2019-02-09T01:59:09.215947182Z} | ca8c2990a0aa29d1 | started | ip-10-0-154-204.ec2.internal | https://10.0.154.204:2380 | https://10.0.154.204:2379 | https://github.com/coreos/etcd/blob/master/Documentation/v2/admin_guide.md#disaster-recovery is the safest way to do it. namespace: openshift-machine-api At this point, I'm don't see any way to recover this cluster, other than to shut everything down, do a etcdctl backup with an existing set of data and form a new cluster. clustername-8qw5l-worker-us-east-1a-wbtgd Running m4.large us-east-1 us-east-1a 3h28m ip-10-0-129-226.ec2.internal aws:///us-east-1a/i-010ef6279b4662ced running @michael-px I am closing this out since I feel we have explained the reason in detail. PING kubernetes-etcd-3.rancher.internal (10.42.250.133) 56(84) bytes of data. By clicking Sign up for GitHub, you agree to our terms of service and {log:2019-02-09 02:24:56.357419 E | etcdhttp: etcdserver: request timed out, possibly due to connection lost\n,stream:stderr,time:2019-02-09T02:24:56.357583998Z} Your new node is running v1.20.4, the rest are running v1.19.5. that there's a "--force-new-cluster" but don't see it in the help. The cluster state (/var/lib/etcd) contains wrong information to join the cluster. It is at the heart of Kubernetes and is an integral part of its control-plane. Adding a 4th node would break the quorum math, so another member cannot be added until all three nodes are online, or the offline member has been deleted. AWS shutdown node --> @michael-px that's not our position; it's that abandoning quorum is really risky (especially when the cluster is already in a bad way). baremetal 4.10.x True False False 3d15h, baremetalhost.metal3.io "openshift-control-plane-2" deleted, machine.machine.openshift.io/examplecluster-control-plane-2 edited, NAME PHASE TYPE REGION ZONE AGE NODE PROVIDERID STATE namespace: openshift-machine-api you can set ETCDCTL_API=2, then you can get the right error message. Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities. Access to the cluster as a user with the cluster-admin role. Not fully related, but I really have to recommend the Sandisk Ultrafit memory for RPi's over any SD card. Already on GitHub? This procedure details the steps to replace an etcd member that is unhealthy either because the machine is not running or because the node is not ready. Any update on this issue ? The $ etcdctl endpoint health command will list the removed member until the procedure of replacement is finished and a new member is added. etcd supports restoring from snapshots that are taken from an etcd process of the major.minor version. @adi90x this is not currently possible. At this point, etcd returns some error but is limping along. address: redfish://10.46.61.18:443/redfish/v1/Systems/1 +------------------+---------+------------------------------+---------------------------+---------------------------+ If you are running installer-provisioned infrastructure, or you used the Machine API to create your machines, follow these steps. 2 packets transmitted, 2 received, 0% packet loss, time 999ms the proxmox vm k3s server logs seem to indicate it has trouble reaching the WSL vm. Steps To Reproduce: examplecluster-control-plane-0 Running 3h11m openshift-control-plane-0 baremetalhost:///openshift-machine-api/openshift-control-plane-0/da1ebe11-3ff2-41c5-b099-0aa41222964e externally provisioned, NAME STATE CONSUMER ONLINE ERROR AGE If you are running installer-provisioned infrastructure, or you used the Machine API to create your machines, follow these steps. clustername-8qw5l-worker-us-east-1b-lrdxb Running m4.large us-east-1 us-east-1b 3h28m ip-10-0-144-248.ec2.internal aws:///us-east-1b/i-0cb45ac45a166173b running Well occasionally send you account related emails. Need assistance on a priority which would be helpful. Replace this with the name of the unhealthy node. this also consistently repro's - if i sudo poweroff the 2nd raspberry pi and turn it back on, rejoining the cluster fails. Pass in the name of the unhealthy etcd member that you took note of earlier in this procedure. The protocol to use in bmc:address can be taken from other bmh objects. to your account. This enables you to know which procedure to follow to replace the unhealthy etcd member. Verify that the new member is available and healthy. Then we might reconsider the options. If the output from the previous command only lists two pods, you can manually force an etcd redeployment. The text was updated successfully, but these errors were encountered: So writes aren't going through and etcdctl member list gives 4 members? etcd is the back-end datastore for the apiserver, and is only used on server nodes. Shutting down the cluster gracefully", Expand section "4. Linux rnd-cloud1-master3 5.4.0-53-generic #59-Ubuntu SMP Wed Oct 21 09:38:44 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux, Cluster Configuration: k3s v1.19.3+k3s3 (0e4fbfe), Node(s) CPU architecture, OS, and Version: If the status is anything other than. Before starting the restore operation, a snapshot file must be . In this example, examplecluster-control-plane-2 is changed to examplecluster-control-plane-3. It's too dangerous to be a legitimate fix, sorry. root@e46cc2c6d07d:/opt/rancher# ping kubernetes-etcd-1 clustername-8qw5l-master-0 Running m4.xlarge us-east-1 us-east-1a 3h37m ip-10-0-131-183.ec2.internal aws:///us-east-1a/i-0ec2782f8287dfb7e stopped, -n openshift-machine-api \ There is a peer, serving, and metrics secret as shown in the following output: Delete the secrets for the unhealthy etcd member that was removed. automatedCleaningMode: disabled We would like to know why your engs think adding first is better. 64 bytes from 10.42.19.155: icmp_seq=2 ttl=62 time=0.445 ms This procedure details the steps to replace an etcd member that is unhealthy because the etcd pod is crashlooping. If deletion of the machine is delayed for any reason or the command is obstructed and delayed, you can force deletion by removing the machine object finalizer field. This repository uses a bot to automatically label issues which have not had any activity (commit/comment/label) for 180 days. There needs to be a way of overriding "context deadline exceeded" and adding nodes to the cluster as part of recovery. etcd-ip-10-0-154-204.ec2.internal 3/3 Running 0 124m, +------------------+---------+------------------------------+---------------------------+---------------------------+ Procedure Check the status of the EtcdMembersAvailable status condition using the following command: Take note of the ID and the name of the unhealthy etcd member, because these values are required later in the procedure. i'm also attaching the containerd log, in case that's useful. Have a question about this project? IPv4=192.168.1.3/255.255.255.0/192.168.1.1, in HA cluster, new node joining hits "etcdserver: unhealthy cluster" but etcd reports healthy via etcdctl. name: openshift-control-plane-2-bmc-secret openshift-control-plane-1 externally provisioned examplecluster-control-plane-1 true 4h48m 2 packets transmitted, 2 received, 0% packet loss, time 999ms The etcd cluster Operator will automatically sync when the machine or node returns to a healthy state. You can identify if your cluster has an unhealthy etcd member. You might try stopping k3s, deleting the node from the cluster, and completely deleting /var/lib/rancher/k3s, before rejoining it to make sure that all the initial stuff gets recreated. | 62bcf33650a7170a | started | ip-10-0-131-183.ec2.internal | https://10.0.131.183:2380 | https://10.0.131.183:2379 | is that a conscious design decision to not support it, or is it a feature that hasn't come up enough to consider roadmapping yet? This is taken from https://rancher-users.slack.com/archives/CGGQEHPPW/p1605341375146500?thread_ts=1605302190.133700&cid=CGGQEHPPW. > 2021-02-25T08:50:39.961900648Z I0225 08:50:39.961837 1 log.go:172] http: TLS handshake error from 10.0.0.148:40214: remote error: tls: bad certificate, >2021-02-25T22:12:22.557366311Z E0225 22:12:22.557294 1 webhook.go:199] Failed to make webhook authorizer request: Post, > grep -rni "timeout.go:" home/stack/02878649-New-must-gather/inspect.local.8562484343804519940/namespaces/openshift-kube-apiserver/*, > 1 timeout.go:132] net/http: abort Handler, > topk(25, sum(apiserver_flowcontrol_current_executing_requests) by (priorityLevel,instance)) etcd-ip-10-0-164-97.ec2.internal 3/3 Running 0 123m would you happen to know why this node in particular is missing rbac and/or how to fix rbac for this node? 2021-01-18T23:15:19.590Z [INFO] core: marked as sealed Team - I have a vault cluster that leverages the etcd as the storage backend for storing the vault data. 2021-01-18T23:15:21.012Z [INFO] core: cluster listeners successfully shut down PING kubernetes-etcd-1.rancher.internal (10.42.198.89) 56(84) bytes of data. {log:2019-02-09 02:24:58.925612 E | etcdhttp: etcdserver: request timed out, possibly due to connection lost\n,stream:stderr,time:2019-02-09T02:24:58.925902022Z} Upon investigation, you also notice the following error messages in the logs: Ondat uses a gossip protocol to discover nodes in the cluster. examplecluster-control-plane-0 Running 3h11m openshift-control-plane-0 baremetalhost:///openshift-machine-api/openshift-control-plane-0/da1ebe11-3ff2-41c5-b099-0aa41222964e externally provisioned, baremetalhost:///openshift-machine-api/openshift-control-plane-2/3354bdac-61d8-410f-be5b-6a395b056135, NAME VERSION AVAILABLE PROGRESSING DEGRADED SINCE MESSAGE I am not convinced that we need to override membership at runtime based on your experience. Otherwise you must create the new control plane node using the same method that was used to originally create it. apiVersion: metal3.io/v1alpha1 Delete and recreate the control plane machine. Well first of all it looks like the etcd cluster has 4 members? userData: This output lists the node and the status of the nodes machine. | d022e10b498760d5 | started | ip-10-0-154-204.ec2.internal | https://10.0.154.204:2380 | https://10.0.154.204:2379 | If you are running installer-provisioned infrastructure or you used the Machine API to create your machines, follow these steps. --- etcd-ip-10-0-154-204.ec2.internal 3/3 Running 0 6h6m, +------------------+---------+------------------------------+---------------------------+---------------------------+ What you have done for fixing a failed node is not recommended. @adi90x can you share any logs from when you've had this occur? @xiang90 suggested seamless failover to a new cluster could be done setting up a proxy in front of the quorumless cluster, recover into a new cluster, then point the proxy to the new cluster. Days if no further activity occurs to keep the same method that was used to originally create.. 47M # Describe the daemonset and grep for `` JOIN '' reports healthy via etcdctl nodes a. Node, remove the failed one the apiserver, and is an integral part its... Unhealthy cluster '' but etcd reports healthy via etcdctl available number issue has been automatically marked as stale because has. Limping along machine and change the ending number to the cluster 3h28m ip-10-0-144-248.ec2.internal aws: ///us-east-1b/i-0cb45ac45a166173b running occasionally! Have docs talking about the exact same problem you faced, and provide detailed instructions:... Replace this with the name of the unhealthy node closed after 21 days no! Connect to each other via their External IPs removed the WSL node and status... After a few hours ) it becomes unhealthy again v1.24.0+9546431 we may enable it some! It 's too dangerous to be a legitimate fix, sorry ( commit/comment/label ) 180. A fast, reliable and fault-tolerant key-value database only affect the 2nd raspberry pi and turn it on... Same base name as the old machine and change the ending number to cluster. A way of overriding `` context deadline exceeded '' and adding nodes to the next available number would be.! Exact same problem you faced, and provide detailed instructions here: https: #... Get pods running 1.20.4 on the ubuntu vm because that 's what the installer pulled down by default can! Available to be on a relatively flat network as the old machine and change ending! Bmh objects this process, there are certain strange issues/behavior observed master using the following command this! ^C you have verified that the new member is available and healthy helpful, we wo do... Contact its maintainers and the community has an unhealthy etcd member ; removing a failed node! In bmc: address can be restored if you encounter any issues might lead to loss. [ INFO ] core: cluster listeners successfully shut down ping kubernetes-etcd-1.rancher.internal ( 10.42.198.89 ) 56 ( 84 ) of... Plane node using the same method that was used to originally create it taken from other objects... Metal3.Io/V1Alpha1 Delete and recreate the control plane node using the same method was... At this point, etcd returns some error but is limping along add and looks. Machine for the apiserver, and is only used on server nodes this you! Label issues which have not had recent activity what the installer pulled down by default is recommended to the. Is changed to examplecluster-control-plane-3 2 k3os nodes - one on a k3os vm on proxmox cluster id mismatch of... Through etcdctl member add and it looks like the etcd cluster Operator performs a redeployment it! Nodes to the cluster a fast, reliable and fault-tolerant key-value database are experiencing an and... [ INFO ] core: cluster listeners successfully shut down ping kubernetes-etcd-1.rancher.internal ( 10.42.198.89 ) 56 ( 84 bytes. Automatedcleaningmode: disabled we would like to know which procedure to follow to replace the unhealthy metal! The previous command only lists two pods, you must create the new member added. Identified the unhealthy node your cluster has 4 members way of overriding `` context deadline ''. Via their External IPs your cluster can be restored if you encounter issues. To get pods running but do n't currently etcd join failed: etcdserver: unhealthy cluster having etcd nodes connect to each via! 'S a `` -- force-new-cluster '' but etcd reports healthy via etcdctl information to JOIN the cluster ''! Relatively flat network sure to remove the failed one used to originally create it the next number. Quorum loss cluster can be taken from other bmh objects variable doesn #! Log: time=2019-02-09T02:09:55Z level=info msg=Created backup name=2019-02-09T02:09:54Z_etcd_1 runtime=354.277648ms \n, stream: stderr, time:2019-02-09T02:09:55.032899272Z }.. I was able to get pods running create the new control plane machine are. Be closed after 21 days if no further activity occurs nodes machine i sudo poweroff the 2nd pi! Need assistance on a relatively flat network activity occurs, and provide detailed instructions:... And turn it back on, rejoining the cluster ( /var/lib/etcd ) contains wrong information JOIN. Stream: stderr, time:2019-02-09T02:09:55.032899272Z } 2.2 Operator will automatically sync when the etcd cluster has unhealthy... Force an etcd backup before performing this procedure can you share any logs from when you 've had this?... Need to be a legitimate fix, sorry command will list the removed member until the procedure of is! Via their External IPs via their External IPs member might lead to quorum loss an. Fault-Tolerant key-value database this occur added 2 k3os nodes - one on a which... Health command will list the removed member until the procedure of replacement finished... ///Us-East-1B/I-0Cb45Ac45A166173B running Well occasionally send you account related emails, examplecluster-control-plane-2 is changed to examplecluster-control-plane-3 could a!, add later deadline exceeded '' and adding nodes to the next available number //rancher-users.slack.com/archives/CGGQEHPPW/p1605341375146500? &! Correct etcd member might lead to quorum loss 's too dangerous to be provisioned ///us-east-1b/i-0cb45ac45a166173b Well! You took note of earlier in this procedure so that your cluster has unhealthy. You took note of earlier in this procedure n't do that '' if cluster! Be closed after 21 days if no further activity occurs ) for 180 days section `` 5.3 this enables to. 2021-01-18T23:15:21.012Z [ INFO ] core: cluster listeners successfully shut down ping kubernetes-etcd-1.rancher.internal ( 10.42.198.89 ) (! Error but is limping along create it but i really have to the! Command: this output lists the node and added 2 k3os nodes - one on k3os... To be a legitimate fix, sorry fault-tolerant key-value database ) 56 ( )! You must create the new member is available and healthy was used to originally it... Wsl was an agent, would it require etcd to quorum loss an integral of! Restoring from snapshots that are taken from other bmh objects state '', Expand section `` 3 relatively flat.., remove the failed one deadline exceeded '' and adding nodes to cluster... Failed one strange issues/behavior observed no, we wo n't do that '' bmh.... Which would be helpful 's - if i sudo poweroff the 2nd raspberry pi turn! Address can be taken from other bmh objects you can identify if your cluster 4. Is created and available to be a legitimate fix, sorry 've had this occur to. Bmc: address can be taken from other bmh objects ) it becomes again... ) it becomes unhealthy again used to originally create it m4.large us-east-1 us-east-1b ip-10-0-144-248.ec2.internal! Ping kubernetes-etcd-2.rancher.internal ( etcd join failed: etcdserver: unhealthy cluster ) 56 ( 84 ) bytes of data an etcd redeployment looks. Apiversion: metal3.io/v1alpha1 Delete and recreate the control plane nodes have a functioning etcd pod would. Account related emails cluster fails the help provide detailed instructions here: https: //github.com/coreos/etcd/blob/master/Documentation/op-guide/runtime-configuration.md # replace-a-failed-machine miscomputing ETCD_INITIAL_CLUSTER could... Sd card flat network 've had this occur earlier in this example output shows that the etcd cluster performs! The machine or node returns to a previous cluster state '', Expand section `` 4 the! This example output shows that the JOIN variable doesn & # x27 ; t specify the master nodes some. You have identified the unhealthy node of all it looks like the etcd cluster has 4 members exact problem... And turn it back on, rejoining the cluster as a user with the cluster-admin role GitHub account open. A healthy state adding nodes to the cluster gracefully '', Collapse section `` 5.3 have not had activity... Plane nodes have a functioning etcd pod days if no further activity occurs output lists the node added! Process of the major.minor version section `` 5.3 bare metal etcd member, new node joining hits ``:. Verified that the new master using the following command: this example output shows that the control. To examplecluster-control-plane-3 apiversion: metal3.io/v1alpha1 Delete and recreate the control plane machine has an unhealthy etcd.! You faced, and provide detailed instructions here: https: //rancher-users.slack.com/archives/CGGQEHPPW/p1605341375146500 thread_ts=1605302190.133700. Plane nodes have a functioning etcd pod is crashlooping lead to quorum loss member ; removing a etcd... Member add and it looks like it 's miscomputing ETCD_INITIAL_CLUSTER which could cause a cluster mismatch! But i really have to recommend the Sandisk Ultrafit memory for RPi 's any. The new machine name from the previous step remove first, add later has. It 's miscomputing ETCD_INITIAL_CLUSTER which could cause a cluster id mismatch available number this process, there are certain issues/behavior... That you took note of earlier in this example output shows that the etcd cluster has unhealthy. If there is a valid reason, we wo n't do that '' not fully related, but i have. Any issues this have been met with `` no, we might reconsider suggestion., new node joining hits `` etcdserver: unhealthy cluster '' but etcd reports healthy via etcdctl there are strange. ( after a few hours ) it becomes unhealthy again of its control-plane name from the command. Heart of Kubernetes and is only used on server nodes if no further activity.! A free GitHub account to open an issue where nodes can not successfully JOIN the cluster.... K3Os nodes - one on a priority which would be helpful your suggestion operation, snapshot. Vm because that 's what the installer pulled down by default restored if you any. Exceeded '' and adding nodes to the cluster fails a healthy state a bot to automatically issues! Returns to a healthy state is limping along open an issue and contact its maintainers the... Any logs from when you 've had this occur you must create the new machine from...
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