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etcd README has troubleshooting section

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Brian Cunnie
2022-04-10 07:40:34 -07:00
parent f4863813bb
commit 8483e1eb1e
1 changed files with 14 additions and 2 deletions
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16
etcd/README.md
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@@ -68,10 +68,16 @@ dig @localhost metrics.status.sslip.io txt +short | grep "Key-value store:" # sh
```
If the messages look innocuous (ignore "serving client traffic insecurely; this
is strongly discouraged!"), then check the cluster:
is strongly discouraged!").
Check the cluster:
```shell
etcdctl member list # "8e9e05c52164694d, started, default, http://localhost:2380, http://localhost:2379, false"
etcdctl member list # first time: "8e9e05c52164694d, started, default, http://localhost:2380, http://localhost:2379, false"
# existing cluster:
660f0ebfd9c21a95: name=ns-aws peerURLs=https://ns-aws.sslip.io:2380 clientURLs=http://localhost:2379 isLeader=true
6e7e4616e1032417: name=ns-azure peerURLs=https://ns-azure.sslip.io:2380 clientURLs=http://localhost:2379 isLeader=false
b77b5c23840fa42b: name=ns-gce peerURLs=https://ns-gce.sslip.io:2380 clientURLs= isLeader=false
```
### Wiping old data
@@ -83,3 +89,9 @@ sudo systemctl stop etcd
sudo rm -rf /var/lib/etcd/default/member
sudo systemctl start etcd
```
### Troubleshooting
If `sudo journalctl -xefu etcd` errors with `member xxx has already been
bootstrapped`, then edit `/etc/default/etcd` and set
`ETCD_INITIAL_CLUSTER_STATE="existing"` (previously was `"new"`).