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Command: agent-info

The agent-info command dumps metrics and status information of a running agent. The information displayed pertains to the specific agent the CLI is connected to. This is useful for troubleshooting and performance monitoring.

Usage

nomad agent-info [options]

When ACLs are enabled, this command requires a token with the agent:read capability.

General Options

  • -address=<addr>: The address of the Nomad server. Overrides the NOMAD_ADDR environment variable if set. Defaults to http://127.0.0.1:4646.

  • -region=<region>: The region of the Nomad server to forward commands to. Overrides the NOMAD_REGION environment variable if set. Defaults to the Agent's local region.

  • -no-color: Disables colored command output. Alternatively, NOMAD_CLI_NO_COLOR may be set. This option takes precedence over -force-color.

  • -force-color: Forces colored command output. This can be used in cases where the usual terminal detection fails. Alternatively, NOMAD_CLI_FORCE_COLOR may be set. This option has no effect if -no-color is also used.

  • -ca-cert=<path>: Path to a PEM encoded CA cert file to use to verify the Nomad server SSL certificate. Overrides the NOMAD_CACERT environment variable if set.

  • -ca-path=<path>: Path to a directory of PEM encoded CA cert files to verify the Nomad server SSL certificate. If both -ca-cert and -ca-path are specified, -ca-cert is used. Overrides the NOMAD_CAPATH environment variable if set.

  • -client-cert=<path>: Path to a PEM encoded client certificate for TLS authentication to the Nomad server. Must also specify -client-key. Overrides the NOMAD_CLIENT_CERT environment variable if set.

  • -client-key=<path>: Path to an unencrypted PEM encoded private key matching the client certificate from -client-cert. Overrides the NOMAD_CLIENT_KEY environment variable if set.

  • -tls-server-name=<value>: The server name to use as the SNI host when connecting via TLS. Overrides the NOMAD_TLS_SERVER_NAME environment variable if set.

  • -tls-skip-verify: Do not verify TLS certificate. This is highly not recommended. Verification will also be skipped if NOMAD_SKIP_VERIFY is set.

  • -token: The SecretID of an ACL token to use to authenticate API requests with. Overrides the NOMAD_TOKEN environment variable if set.

Agent Info Options

  • -json : Output agent info in its JSON format.
  • -t : Format and display agent info using a Go template.

Output

Depending on the agent queried, information from different subsystems is returned. These subsystems are described below:

  • client - Status of the local Nomad client
  • nomad - Status of the local Nomad server
  • serf - Gossip protocol metrics and information
  • raft - Status information about the Raft consensus protocol
  • runtime - Various metrics from the runtime environment

Examples

$ nomad agent-info
raft
  commit_index = 0
  fsm_pending = 0
  last_contact = never
  last_snapshot_term = 0
  state = Follower
  term = 0
  applied_index = 0
  last_log_index = 0
  last_log_term = 0
  last_snapshot_index = 0
  num_peers = 0
runtime
  cpu_count = 4
  goroutines = 43
  kernel.name = darwin
  max_procs = 4
  version = go1.5
  arch = amd64
serf
  intent_queue = 0
  member_time = 1
  query_queue = 0
  event_time = 1
  event_queue = 0
  failed = 0
  left = 0
  members = 1
  query_time = 1
  encrypted = false
client
  heartbeat_ttl = 0
  known_servers = 0
  last_heartbeat = 9223372036854775807
  num_allocations = 0
nomad
  bootstrap = false
  known_regions = 1
  leader = false
  server = true