Environment Variables and Runtime Flags

Common environment variables

Examples used in local cluster compose:

• MONKDB_HEAP_SIZE=1g
• MONKDB_INDICES_FIELDDATA_BREAKER_LIMIT=60%

Use env vars for containerized runtime defaults and operational overrides.

Common -C runtime flags

Examples:

• -Ccluster.name=...
• -Cnetwork.host=...
• -Cnetwork.publish_host=...
• -Ctransport.port=...
• -Cnode.name=...
• -Cdiscovery.seed_hosts=...
• -Ccluster.initial_master_nodes=...

Configuration file location

Typical file: monkdb.yml

Example baseline in this repo:

network.host: _local_,_site_
path:
  logs: /data/log
  data: /data/data
blobs:
  path: /data/blobs

Where to set what

• Use monkdb.yml for stable node baseline.
• Use -C flags for deployment-time topology wiring.
• Use environment variables for container/JVM operational values.