Server

The gRPC server implementation for MEF3 file access.

mef3io_server.server.mef3_server

gRPCMef3Server

gRPCMef3Server(file_manager)

Bases: gRPCMef3ServerServicer

gRPC servicer for MEF3 files. Stateless, delegates all requests to FileManager.

Initializes the gRPC servicer.

Parameters:

Name	Type	Description	Default
file_manager	FileManager	The FileManager instance to delegate requests to.	required

gRPCMef3ServerHandler

gRPCMef3ServerHandler(port, max_workers=4, tile_duration_s=60, tile_cache_bytes=512 * 1024 * 1024, use_process_pool=True, reader_processes=None, prefetch_processes=None, min_parallel_tiles=2, prefetch_ahead_windows=1, prefetch_behind_windows=1, cache_ttl_s=1800)

Handler to launch and manage the gRPC MEF3 server lifecycle.

Initializes the gRPC server and FileManager.

Parameters:

Name	Type	Description	Default
port	int	Port to listen on.	required
max_workers	int	Max worker threads for the prefetch thread fallback.	4
tile_duration_s	float	Tile length (seconds) for timestamp-based access.	60
tile_cache_bytes	int	Global tile cache byte budget.	512 * 1024 * 1024
use_process_pool	bool	Decode in worker processes for parallel decode.	True
reader_processes	int or None	Total decode worker processes (auto cpu-1).	None
prefetch_processes	int or None	Background prefetch lane size (auto half).	None
min_parallel_tiles	int	Min missing tiles before fanning out to the pool.	2
prefetch_ahead_windows	int	Windows to prefetch ahead (page forward).	1
prefetch_behind_windows	int	Windows to prefetch behind (page backward).	1
cache_ttl_s	float or None	Discard tiles idle longer than this.	1800