Number of times an ingest queue consumer hit an empty queue while pushing to in-memory job queue for digest writers

Metric Nameingest-writer-queue-empty
Metric TypeMeter

Example Metric Record:

json
{
   "#repo" : "humio-metrics",
   "#type" : "metrics",
   "@host" : "15",
   "@id" : "9iorL6KUunDPtXomKtgLGG7E_6237_1436_1726717405",
   "@ingesttimestamp" : "1726717405732",
   "@timestamp" : 1726717405726,
   "@timestamp.nanos" : "0",
   "@timezone" : "UTC",
   "count" : "519051",
   "m1" : "7.138105958301024",
   "m15" : "8.655111276625647",
   "m5" : "7.978496016303745",
   "mean_rate" : "8.906516043817255",
   "name" : "ingest-writer-queue-empty",
   "rate_unit" : "underflows/second",
   "type" : "METER"
}