Jiaming Cao

Improving client call options flexibility and replace retry interceptor

3

### What would you like to be added? ### 1. Expose more client call options Most of the [gRPC call options](https://github.com/etcd-io/etcd/blob/c853b9c337c20505eff494ede2239caf334a4e40/client/v3/options.go#L24-L57) of clientV3 cannot be configured by users (while some...

Allow reuse of slices exposed through Ready

1

Solve https://github.com/etcd-io/raft/issues/15: Use pooled slice to reduce the total bytes allocated. Benchmark result: ``` % benchdiff --old 177ef28a -r BenchmarkRawNode -c 5 . test binaries already exist for '177ef28'; skipping...

[3.5]Replace unnecessary Lock()/Unlock()s with RLock()/RUnlock()s

5

Follow up https://github.com/etcd-io/etcd/pull/16068#discussion_r1263664700 Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.