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Posted to notifications@apisix.apache.org by GitBox <gi...@apache.org> on 2022/09/13 09:20:08 UTC
[GitHub] [apisix-helm-chart] xzycn opened a new issue, #344: How should I restore ETCD deployed in K8S?
xzycn opened a new issue, #344:
URL: https://github.com/apache/apisix-helm-chart/issues/344
I have done some procedures for this:
1. copy a snapshot file to someplace named etcd-snapshot.db
2. scale the statefulset to 0
3. start a static pod with etcdctl and mount the pvc used by etcd members
4. execute the restore command:
```bash
etcdctl snapshot restore --skip-hash-check etcd-snapshot.db --initial-cluster=apisix-etcd-0=http://apisix-etcd-0.apisix-etcd-headless.apisix.svc.cluster.local:2380,apisix-etcd-1=http://apisix-etcd-1.apisix-etcd-headless.apisix.svc.cluster.local:2380,apisix-etcd-2=http://apisix-etcd-2.apisix-etcd-headless.apisix.svc.cluster.local:2380 --initial-cluster-token=etcd-cluster-k8s --initial-advertise-peer-urls=http://apisix-etcd-2.apisix-etcd-headless.apisix.svc.cluster.local:2380 --name apisix-etcd-2 --data-dir=/opt/nfsdata/apisix-data-apisix-etcd-2-pvc-f8ef09a4-e8f2-404d-8d14-63b905e324be/data
```
but the command has a problem: the pods have been shut down,therefore there is no pod-domain exists,get errors:
```bash
{"level":"warn","ts":1663053636.7199378,"caller":"netutil/netutil.go:121","msg":"failed to resolve URL Host","url":"http://apisix-etcd-2.apisix-etcd-headless.apisix.svc.cluster.local:2380","host":"apisix-etcd-2.apisix-etcd-headless.apisix.svc.cluster.local:2380","retry-interval":1,"error":"lookup apisix-etcd-2.apisix-etcd-headless.apisix.svc.cluster.local on 192.168.0.2:53: no such host"}
```
If I restore without extra options:
```bash
etcdctl snapshot restore --skip-hash-check etcd-snapshot.db --data-dir=/opt/nfsdata/apisix-data-apisix-etcd-2-pvc-f8ef09a4-e8f2-404d-8d14-63b905e324be/data
```
All things are OK except that the node start as a single-node,**_etcdctl member list_** only shows itself :(
So, how should I restore ETCD deployed in K8S, thank you in advance.
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[GitHub] [apisix-helm-chart] tokers commented on issue #344: How should I restore ETCD deployed in K8S?
Posted by GitBox <gi...@apache.org>.
tokers commented on issue #344:
URL: https://github.com/apache/apisix-helm-chart/issues/344#issuecomment-1245177774
@xzycn I think this issue is not related to APISIX. It's totally an ETCD operation skill. Try to find help from ETCD community.
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[GitHub] [apisix-helm-chart] xzycn commented on issue #344: How should I restore ETCD deployed in K8S?
Posted by GitBox <gi...@apache.org>.
xzycn commented on issue #344:
URL: https://github.com/apache/apisix-helm-chart/issues/344#issuecomment-1245196546
Maybe, this probelm comes from apisix-helm-chart, I thought I can get some help from here.
Anyway, thank you.
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