TCP ingest listener free slots for lines to be processed (high when idle, zero when over-loaded)

Metric Nameingest-listener-tcp-available
Metric TypeGauge
Introduced Version1.0.0
Standard Fields for this Metric  
@hostVHost ID 
@idA unique identifier for the event. Can be used to refer to and re-find specific events. 
@ingesttimestampThe timestamp of when the event was ingested. The value is milliseconds-since-epoch. 
@timestampTimestamp in milliseconds since the epoch (1st Jan 1970, 00:00) of the event, e.g. 2022-11-22 09:50:20.100 if the event has an identifiable timestamp. 
@timestamp.nanosExtended precision of timestamp below millisecond. E.g. 295000 
@timezoneThe timezone the event originated in, if known. 
nameName of metric 
typeMetric type 
valueValue for metric 

Example Metric Record:

json
{
   "#repo" : "humio-metrics",
   "#type" : "metrics",
   "@host" : "82",
   "@id" : "GC917jcfRfQGQzV5tKxhQSdC_12792_1361_1772355600",
   "@ingesttimestamp" : "1772355600327",
   "@timestamp" : 1772355600285,
   "@timestamp.nanos" : "0",
   "@timezone" : "UTC",
   "name" : "ingest-listener-tcp-available",
   "type" : "GAUGE",
   "value" : "80000"
}