[Feat] Mooncake|Posix

[UESTC-AHao]

Purpose

UCM + Mooncake & Mooncake|Posix (Ascend 0.18.0)

Modifications

unified-cache-management\examples\ucm_mooncake_config.yaml

Test

[ygwpz]

Follow-up Review Summary

Status: All previous concerns have been addressed

After reviewing the current state of the PR, I can confirm that all concerns raised in previous reviews have been addressed:

1. Thread-safety for _pending_dump_tasks (line 910) - Addressed: UESTC-AHao explained that wait_for_save and _drain_pending_dump_tasks are both called sequentially within the same scheduler main loop, so synchronization is unnecessary.

2. Check result of unregister_buffer() (mooncake_store.cc:84) - Verified fixed: Warning log added for failed unregister operations (lines 84-87).

3. Performance concern for per-request dump tasks - Addressed: UESTC-AHao confirmed no practical impact upon testing.

4. Extract function to StoreV1 (fake_store.cc:85) - Addressed: Function already extracted in StoreV1.

5. 3fsstore implementation of RegisterMemory (ucmstore_v1.h:161) - Verified: ds3fs_store.cc implements RegisterMemory at lines 174-179.

6. Dump task leaking in C++ task map (line 750) - Verified fixed: Now using store.wait() to properly clean up tasks after completion.

7. Async dump failure handling (line 909) - Addressed: Failed requests are properly returned as finished in get_finished.

Unresolved Issue: Merge Conflicts

Important: This PR currently has merge conflicts (mergeable_state: dirty). The branch needs to be rebased against the develop branch to resolve conflicts before merging.

Please rebase the branch and resolve any conflicts with the upstream develop branch.