Idea: Add services support HBase/OBKV

[WenyXu]

We are considering using OpenDAL to access OBKV(OceanBase storage layer; it could be considered HBase-compatible)

There is a rust obkv-table-client-rs, which we can rely on, but it uses a nightly rust version(maybe we can change it to a stable version)

[WenyXu]

For the obkv-table-client-rs, my colleague may have more details. cc @fengjiachun

[Xuanwo]

Interestingly, I created the OpenDAL KV adapter just for fun, but now it's actually being used!

[Xuanwo]

I'm fine to add both obkv/hbase services, as long as:

• The newly added dep is well-maintained
• CI passed (with stable rust)
• Test passed

[Xuanwo]

• CI passed (with stable rust)

For this, I submitted https://github.com/oceanbase/obkv-table-client-rs/pull/87

[tisonkun]

This is a related PR https://github.com/oceanbase/obkv-table-client-rs/pull/82

I ever thought about this and blocked because I cannot prepare a CI env for debugging and regression testing.

[Xuanwo]

I cannot prepare a CI env for debugging and regression testing.

Oh, this might be an issue.

[IHEII]

This is a related PR oceanbase/obkv-table-client-rs#82

I ever thought about this and blocked because I cannot prepare a CI env for debugging and regression testing.

Maybe we could implement CI for debugging and regression now. The Rust client server now supports 4.x server and we have a light observer in docker now (oceanbase/oceanbase-ce imageTag = "4.2.1_bp2"). See here for details.

[jiacai2050]

https://github.com/apache/incubator-horaedb/blob/main/src/components/object_store/src/obkv/mod.rs

HoraeDB already have an object store implementation based on OBKV, this maybe useful for this issue.