Files
seaweedfs/weed/storage
pingqiuandClaude Opus 4.5 e064c86d12 feat(volume): add UDS handler for RDMA sidecar integration
Add Unix Domain Socket (UDS) handler to Volume server for RDMA sidecar
(sra-volume) to query needle locations without HTTP overhead.

Protocol (per UDS_LOCATE_API_SPEC.md):
- Request: 24 bytes (fid[16] + version[4] + flags[4])
- Response: 32 bytes (status[1] + pad[3] + volume_id[4] + offset[8] + length[8] + reserved[8])

Changes:
- weed/server/volume_server_uds.go: UDS server implementation
  - Parses fid via needle.ParseFileIdFromString()
  - Looks up volume via store.GetVolume()
  - Queries needle offset via Volume.GetNeedle()
  - Returns (volumeId, offset, length) or NotFound/Error

- weed/storage/volume.go: Added GetNeedle() method
  - Exposes nm.Get() for UDS handler

- weed/command/volume.go: Added -uds.listen flag
  - Example: weed volume -dir=/data -uds.listen=/tmp/sra-volume.sock
  - UDS server starts/stops with volume lifecycle

- weed/server/volume_server_uds_test.go: 8 tests
  - Protocol size verification
  - Request/response serialization
  - Connection and fid parsing tests

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-08 01:11:40 -08:00
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