Pair the existing journal_mode=WAL with the companion pragmas it needs to
actually pay off, and reduce read latency on hot query paths.
- synchronous=NORMAL: ~2-10x faster writes when paired with WAL. Safe — only
risks losing the last committed txn on power loss; DB stays consistent.
- cache_size=-64000: 64MB page cache (default is 2MB).
- temp_store=MEMORY: keep sort/group temp tables in RAM.
- mmap_size=268435456: 256MB memory-mapped I/O for reads.
Applied to both connection sites: the main read-write/read-only connection
in libs/shared/database and the EPG worker connection in electron-backend.
The per-connection pragmas (cache_size, temp_store, mmap_size) apply to the
read-only agent-backend connection too.
Inspired by matracey/iptvnator@4ad8f88; ported manually since the file has
diverged significantly and the worker connection didn't exist in that fork.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Entire-Checkpoint: 3d6901072049
- Added DatabaseWorkerClient to manage database operations in a worker thread.
- Created database-worker-client.ts to handle requests and responses between the main process and the worker.
- Introduced database-worker.types.ts for type definitions related to worker messages and operations.
- Implemented database.worker.ts to execute various database operations, including CRUD operations for playlists, content, and favorites.
- Added database.worker-connection.ts to manage database connections and ensure proper handling of SQLite instances.
- Created tests for DatabaseWorkerClient to ensure correct request handling and error management.
- Updated xtream.events.ts to allow suppression of error logging for specific requests.
- Enhanced EPG parser worker to include a busy timeout for SQLite operations.
- Integrated shutdown logic for the DatabaseWorkerClient in the main application lifecycle.
