Expand description
Write-Ahead Log (WAL) for L3 durability during MySQL outages.
When MySQL is unavailable (maintenance, network issues, etc.), items are written to a local SQLite database. A background task drains the WAL to MySQL when connectivity is restored.
This is NOT a tier - it’s a durability buffer. Items in the WAL are “in flight” to MySQL, not a permanent storage location.
Structs§
- Mysql
Health Checker - Health checker for MySQL connectivity.
- WalStats
- WAL state for observability
- Write
Ahead Log - Write-ahead log backed by SQLite.