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Internals

This chapter is for when you want to know why the agent did something, not how to ask it to do something.

  • Installed Files — where the agent puts binaries, configurations, state and logs.
  • Daemon — the long-running process behind every cluster-wide behaviour:
    • Events — the bus the daemon publishes to, and which om node events lets you watch.
    • Heartbeats — how nodes decide their peers are alive.
    • Lifecycle — startup, shutdown, and what survives a daemon restart.
    • Quorum — what happens when the cluster splits.
    • Scheduler — the jobs the agent runs on its own, and how to reschedule them.