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fix-pd-recover (#2475) #2493

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Jan 19, 2024
Merged

fix-pd-recover (#2475) #2493

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996f4df
fix-pd-recover
yiduoyunQ Dec 4, 2023
0f46ce6
Apply suggestions from code review
ran-huang Dec 26, 2023
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11 changes: 3 additions & 8 deletions en/pd-recover.md
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Original file line number Diff line number Diff line change
Expand Up @@ -202,14 +202,7 @@ Check configuration. The following command uses placement rules as an example:
kubectl -n ${namespace} exec -it ${cluster_name}-pd-0 -- ./pd-ctl config placement-rules show
```

### Step 6. Restart TiDB and TiKV

Use the following commands to restart the TiDB and TiKV clusters:

```shell
kubectl delete pod -l app.kubernetes.io/component=tidb,app.kubernetes.io/instance=${cluster_name} -n ${namespace} &&
kubectl delete pod -l app.kubernetes.io/component=tikv,app.kubernetes.io/instance=${cluster_name} -n ${namespace}
```
Now the TiDB cluster is recovered.

## Scenarios 2: All PD nodes are down and cannot be recovered

Expand Down Expand Up @@ -371,3 +364,5 @@ Use the following commands to restart the TiDB and TiKV clusters:
kubectl delete pod -l app.kubernetes.io/component=tidb,app.kubernetes.io/instance=${cluster_name} -n ${namespace} &&
kubectl delete pod -l app.kubernetes.io/component=tikv,app.kubernetes.io/instance=${cluster_name} -n ${namespace}
```

Now the TiDB cluster is recovered.
11 changes: 3 additions & 8 deletions zh/pd-recover.md
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Expand Up @@ -202,14 +202,7 @@ kubectl -n ${namespace} exec -it ${cluster_name}-pd-0 -- ./pd-ctl health
kubectl -n ${namespace} exec -it ${cluster_name}-pd-0 -- ./pd-ctl config placement-rules show
```

### 第 6 步：重启 TiDB 和 TiKV

使用以下命令重启 TiDB 和 TiKV 实例：

```shell
kubectl delete pod -l app.kubernetes.io/component=tidb,app.kubernetes.io/instance=${cluster_name} -n ${namespace} &&
kubectl delete pod -l app.kubernetes.io/component=tikv,app.kubernetes.io/instance=${cluster_name} -n ${namespace}
```
至此服务恢复。

## 场景 2：所有 PD 节点都故障且无法恢复

Expand Down Expand Up @@ -373,3 +366,5 @@ kubectl patch tc ${cluster_name} -n ${namespace} --type merge -p '{"spec":{"pd":
kubectl delete pod -l app.kubernetes.io/component=tidb,app.kubernetes.io/instance=${cluster_name} -n ${namespace} &&
kubectl delete pod -l app.kubernetes.io/component=tikv,app.kubernetes.io/instance=${cluster_name} -n ${namespace}
```

至此服务恢复。
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