Add RPC info

bitcoind-monitor.py

@@ -109,6 +109,8 @@
  "bitcoin_verification_progress", "Estimate of verification progress [0..1]"
 )
 
+BITCOIN_RPC_ACTIVE = Gauge("bitcoin_rpc_active", "Number of RPC calls being processed")
+
 EXPORTER_ERRORS = Counter(
  "bitcoin_exporter_errors", "Number of errors encountered by the exporter", labelnames=["type"]
 )
@@ -209,6 +211,7 @@ def refresh_metrics() -> None:
  chaintips = len(bitcoinrpc("getchaintips"))
  mempool = bitcoinrpc("getmempoolinfo")
  nettotals = bitcoinrpc("getnettotals")
+ rpcinfo = bitcoinrpc("getrpcinfo")
  latest_block = get_block(str(blockchaininfo["bestblockhash"]))
  hashps_120 = float(bitcoinrpc("getnetworkhashps", 120)) # 120 is the default
  hashps_neg1 = float(bitcoinrpc("getnetworkhashps", -1))
@@ -273,6 +276,9 @@ def refresh_metrics() -> None:
  BITCOIN_LATEST_BLOCK_OUTPUTS.set(outputs)
  BITCOIN_LATEST_BLOCK_VALUE.set(value)
 
+ # Subtract one because we don't want to count the "getrpcinfo" call itself
+ BITCOIN_RPC_ACTIVE.set(len(rpcinfo["active_commands"]) - 1)
+
 
 def sigterm_handler(signal, frame) -> None:
  logger.critical("Received SIGTERM. Exiting.")