Log line format

Log lines may contain the following fields:

• u: user ID.
• dev: device ID.
• p: pos parameter from incoming requests.
• q: pos value from outgoing responses.
• t: transaction ID.
• c: connection ID.
• b: buffer summary.
• Update counts in outgoing responses, each of which are omitted if zero:
  • r: rooms.
  • d: to-device events.
  • ag: global account data updates.
  • dl-c: changed devices.
  • dl-l: left devices.
  • sub: room subscriptions.
  • usub: room unsubscriptions.
  • l: lists.