lightning-getlog -- Command to show logs.

SYNOPSIS

getlog [level]

DESCRIPTION

The getlog the RPC command to show logs, with optional log level.

• level (string, optional) (one of "broken", "unusual", "info", "debug", "trace", "io"): A string that represents the log level. The default is info.

RETURN VALUE

On success, an object is returned, containing:

• created_at (string): UNIX timestamp with 9 decimal places, when logging was initialized.

• bytes_used (u32): The number of bytes used by logging records.

• bytes_max (u32): The bytes_used values at which records will be trimmed .

• log (array of objects):

  • type (string) (one of "SKIPPED", "BROKEN", "UNUSUAL", "INFO", "DEBUG", "TRACE", "IO_IN", "IO_OUT")

  If type is "SKIPPED":

  • num_skipped (u32): Number of unprinted log entries (deleted or below level parameter).

  If type is "BROKEN", "UNUSUAL", "INFO", "DEBUG" or "TRACE":

  • time (string): UNIX timestamp with 9 decimal places after created_at.
  • source (string): The particular logbook this was found in.
  • log (string): The actual log message.
  • node_id (pubkey, optional): The peer this is associated with.

  If type is "IO_IN" or "IO_OUT":

  • time (string): Seconds after created_at, with 9 decimal places.
  • source (string): The particular logbook this was found in.
  • log (string): The associated log message.
  • data (hex): The IO which occurred.
  • node_id (pubkey, optional): The peer this is associated with.

ERRORS

On failure, one of the following error codes may be returned:

• -32602: Error in given parameters.

AUTHOR

Vincenzo Palazzo <[email protected]> wrote the initial version of this man page,
but many others did the hard work of actually implementing this rpc command.

RESOURCES

Main web site: https://github.com/ElementsProject/lightning

lightning-cli getlog -k "level"="unusual"

{
  "id": "example:getlog#1",
  "method": "getlog",
  "params": {
    "level": "unusual"
  }
}

{
  "created_at": "1722303623.956237697",
  "bytes_used": 1723719,
  "bytes_max": 10485760,
  "log": [
    {
      "type": "SKIPPED",
      "num_skipped": 2927
    },
    {
      "type": "UNUSUAL",
      "time": "59.598510878",
      "node_id": "0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518",
      "source": "chan#1",
      "log": "No peer channel with scid=6250403x3681116x19863"
    },
    {
      "type": "SKIPPED",
      "num_skipped": 1183
    },
    {
      "type": "UNUSUAL",
      "time": "71.923794351",
      "node_id": "035d2b1192dfba134e10e540875d366ebc8bc353d5aa766b80c090b39c3a5d885d",
      "source": "chan#2",
      "log": "Peer permanent failure in CLOSINGD_COMPLETE: Funding transaction spent (reason=unknown)"
    },
    {
      "type": "SKIPPED",
      "num_skipped": 557
    },
    {
      "type": "BROKEN",
      "time": "89.108598990",
      "source": "plugin-topology",
      "log": "DEPRECATED API USED: listchannels.include_private by \\\"-c:listchannels#114/cln:listchannels#175\\\""
    },
    {
      "type": "SKIPPED",
      "num_skipped": 1246
    },
    {
      "type": "UNUSUAL",
      "time": "95.217065000",
      "source": "plugin-cln-renepay",
      "log": "Failed to update hint channel 111x1x0: Failed to update scid=111x1x0 in the local_gossmods."
    },
    {
      "type": "SKIPPED",
      "num_skipped": 1696
    }
  ]
}