Configuration

All durations are specified as string that will be parsed like this (Allowed suffixes: s, m, h, …).

• metrics: Map of metric-name to objects with the following properties
  • frequency: Timestep/Interval/Resolution of this metric
  • aggregation: Can be "sum", "avg" or null
    • null means aggregation across nodes is forbidden for this metric
    • "sum" means that values from the child levels are summed up for the parent level
    • "avg" means that values from the child levels are averaged for the parent level
  • scope: Unused at the moment, should be something like "node", "socket" or "hwthread"
• nats:
  • address: Url of NATS.io server, example: “nats://localhost:4222”
  • username and password: Optional, if provided use those for the connection
  • subscriptions:
    • subscribe-to: Where to expect the measurements to be published
    • cluster-tag: Default value for the cluster tag
• http-api:
  • address: Address to bind to, for example 0.0.0.0:8080
  • https-cert-file and https-key-file: Optional, if provided enable HTTPS using those files as certificate/key
• jwt-public-key: Base64 encoded string, use this to verify requests to the HTTP API
• retention-on-memory: Keep all values in memory for at least that amount of time
• checkpoints:
  • interval: Do checkpoints every X seconds/minutes/hours
  • directory: Path to a directory
  • restore: After a restart, load the last X seconds/minutes/hours of data back into memory
• archive:
  • interval: Move and compress all checkpoints not needed anymore every X seconds/minutes/hours
  • directory: Path to a directory