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### What did you do?
Downgrading from v5.1.2 to v5.1.1, by TiUP.
### What did you expect to see?
That everything goes smoothly.
### What did you see instead?
`CDC:ErrInvalidEtcdKey` rep…
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## Enhancement
it would be great to add prometheus to the "tiup cluster clean" option, for example, sometimes user would like to clean monitor data for some reason like space , correct initializat…
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### What did you do?
1. Create a TiCDC cluster with multiple nodes, such as 7 nodes.
2. Rolling update the TiCDC cluster
### What did you expect to see?
Replication continues normally during…
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## Bug Report
Please answer these questions before submitting your issue. Thanks!
### 1. Minimal reproduce step (Required)
1. Upgrade TiDB cluster from v4.0.16 -> 5.0 ... 6.0.0 -> 6.2.0
2. A…
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### Describe the bug
When using the TiKV store, sometimes the database runs into `ResolveLockError` and when that happens, it looks like it gets stuck in that state. Even restarting TiKV doesn't seem…
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File: [/release-6.1/upgrade-tidb-using-tiup.md](https://docs.pingcap.com/zh/tidb/stable/upgrade-tidb-using-tiup)
离线部署需将 server 和 toolkit 两个离线镜像合并，执行以下命令合并离线组件到 server 目录下。
```
tar xf tidb-commu…
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## Bug Report
### What version of TiKV are you using?
5.3.0
### What operating system and CPU are you using?
Ubuntu 20.04 in systemd-nspawn container (host kernel 5.15.2)
x86_64
###…
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## Bug Report
Please answer these questions before submitting your issue. Thanks!
### 1. Minimal reproduce step (Required)
**Setup the environment:**
```
tiup playground --db.binpath /pat…
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## Bug Report
Please answer these questions before submitting your issue. Thanks!
### 1. Minimal reproduce step (Required)
TiFlash assumes all values in the column with "primary key" flag…
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## Bug Report
Please answer these questions before submitting your issue. Thanks!
### 1. Minimal reproduce step (Required)
* Prepare a brand new TiDB using tiup playground
* Build a progra…