application.conf

## actor-ts chat sample — HOCON configuration.
##
## Fields here are read by the framework on `ActorSystem.create(...)`.
## CLI flags from `backend/config.ts` win over anything set here when
## the chat sample wires the cluster up; this file is the place to
## tune knobs that don't change per-node (gossip cadence, journal
## plugin, log level).

actor-ts {
  # Logging.  Accepted values: debug, info, warn, error, off.
  logger {
    level = "debug"
  }

  # Persistence — SQLite journal so chat history survives restarts.
  # The journal file path is set in code (one shared file per cluster
  # in `data/chat.db`) — leaving it here would tie users to a single
  # working dir.  See `backend/main.ts`.
  persistence {
    journal {
      plugin = "actor-ts.persistence.journal.sqlite"
    }
    snapshot-store {
      plugin = "actor-ts.persistence.snapshot-store.in-memory"
    }
  }

  # Cluster gossip cadence — modest defaults for a 3-node local demo.
  cluster {
    failure-detector {
      heartbeat-interval-ms = 300
      unreachable-after-ms = 1500
      down-after-ms = 4000
    }
    gossip-interval-ms = 500
  }
}