Logger Metrics

Logger metrics are available for log drivers that expose metric reporting.

The discard and journal log drivers do not support metrics. See log for configuration details.

The following tags are present on all logger metrics:

• daemon_group

• stat_id

• logger

  The logger name.

The metric names are:

• logger.message.total

  type: count

  Total number of log records processed.

• logger.message.pass

  type: count

  Number of log records successfully passed to the next peer.

• logger.traffic.pass

  type: count

  Total bytes of log data successfully sent to the next peer.

• logger.message.drop

  Number of log records dropped.

  An extra drop_type tag provides the drop reason. Supported values are:

  • FormatFailed: the message could not be formatted for the target log protocol

  • ChannelClosed: the internal async channel was closed

  • ChannelOverflow: the internal async channel was full

  • PeerUnreachable: the next peer was closed or temporarily unreachable