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Agent Logs

Analyze and explore your logs for troubleshooting.

Default log file storage location: /var/log/iofog-agent​

Log format: JSON​

The JSON log format makes it easy to export logs to other programs or to a logging service.

Sample log:​

{"timestamp":"2021-03-01T14:20:04.282+1300","level":"INFO","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"main","module":"Supervisor","message":" Starting Process Manager"}
{"timestamp":"2021-03-01T14:20:04.286+1300","level":"INFO","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"main","module":"Supervisor","message":" Started Process Manager"}
{"timestamp":"2021-03-01T14:20:04.290+1300","level":"INFO","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"PMCT","module":"Process Manager","message":"WAITING FOR NEW TASK"}
{"timestamp":"2021-03-01T14:20:04.291+1300","level":"INFO","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"main","module":"Supervisor","message":" Starting ResourceManager"}
{"timestamp":"2021-03-01T14:20:04.292+1300","level":"INFO","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"main","module":"Supervisor","message":" Started ResourceManager"}
{"timestamp":"2021-03-01T14:20:04.297+1300","level":"WARNING","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"RMUD","module":"Field Agent","message":"Not provisioned"}
{"timestamp":"2021-03-01T14:20:04.298+1300","level":"WARNING","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"RMUD","module":"Field Agent","message":"Not provisioned"}
{"timestamp":"2021-03-01T14:20:04.299+1300","level":"INFO","agent_id":"","pid":2670,"hostname":"iofog-agent","thread":"main","module":"Supervisor","message":" Starting Tracker"}

Logging field names​

  • timestamp: Timestamp in RFC3339 format with millisecond precision, e.g. 2002-10-02T15:00:00.005-06:00

  • level: INFO, WARNING, FINE, FINER, FINEST, SEVERE

  • agent_id: the iofog agent id.

  • pid: process id.

  • hostname: hostname, e.g. localhost

  • thread: thread name or identififer.

  • module: name of the process.

  • message: body of the log message.

  • stacktrace: contents of a stacktrace.