Ping Yu

playground: Supports the TiKV-CDC component

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### What problem does this PR solve? Close #1999: playground: Support component [TiKV-CDC](https://github.com/tikv/migration/tree/main/cdc). ### What is changed and how it works? Add codes to deal with deploy, scale-in and scale-out...

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** TiUP playground supports the [TiKV-CDC](https://github.com/tikv/migration/tree/main/cdc) component. **Why the featue is needed:** To...

In #332, we add a parameter [`preserve_region_results`](https://github.com/tikv/client-rust/blob/74db41c3e5ed1899708215fc284a4673f179f6e7/src/request/plan.rs#L68-L71) to indicate that `RetryableMultiRegion` should return response from all regions, or raise the first Error if there is any. As @andylokandy suggests, for...

RawKV API v2 panic

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client-go version: v2.0.1-0.20220713085647-57c12f7c64f6 RawKV API v2 panic: ``` Test Panicked runtime error: slice bounds out of range [4:1] ``` Stack: ``` panic({0x2bc02c0, 0xc0632fc5b8}) /disk1/home/pingyu/opt/go-1.18/src/runtime/panic.go:838 +0x207 github.com/tikv/client-go/v2/internal/client.MapV2RangeToV1(0x0, {0xc04567e0e0, 0x1, 0x9}, {0xc04567e0f0,...

### Version master, https://github.com/tikv/client-go/commit/2807409d4968a3dd7b49ac073eadeaf3e6bffc8f ### Environment ##### RawKV cluster deploy by TiUP, v6.1.0-alpha ``` tikv-server --version TiKV Release Version: 6.1.0-alpha Edition: Community Git Commit Hash: c26134bbf04235f61484d4f5ed58c47b520e8015 Git Commit Branch: heads/refs/tags/v6.1.0...

Support TiKV API V2

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# Feature Request Support TiKV API V2, to obtain more TiKV features such as ["cross cluster replication"](https://github.com/tikv/rfcs/pull/86), mixed using TiDB + TxnKV + RawKV on the same TiKV cluster, etc....

The QPS almost dropped to 0 when leader of PD is killed

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## Bug Report ### What version of TiKV are you using? v6.2.0 ### What operating system and CPU are you using? Linux, amd64 ### Steps to reproduce 1. Setup a...

ci: add retry in integrated tests

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Signed-off-by: pingyu ### What problem does this PR solve? Integrated tests occasionally failed due to external reasons (such as errors of component download, see [here](https://github.com/pingcap/tiup/actions/runs/3051118129/jobs/4919667358#step:7:93)). At the same time, failed...

See https://github.com/tikv/client-rust/actions/runs/6940223881/job/18878804812 commit d440f068f48355da04d3642094939b0fb0111801 ``` Running tests/failpoint_tests.rs (target/debug/deps/failpoint_tests-6486f001f7ac1501) running 5 tests init finish with 292 regions test txn_cleanup_2pc_locks has been running for over 60 seconds test txn_cleanup_async_commit_locks has been running...