Found them!
Here is one of the documents, there are around 5 million similar ones:
{
"_index": ".ds-logs-gcp.pubsub-metrics-2022.01.11-000001",
"_type": "_doc",
"_id": "eGtVSX4BVV1vns0ot6nA",
"_version": 1,
"_score": 1,
"_source": {
"points": {
"udp_active": true,
"udp_high": 6,
"udp_medium": 6,
"udp_low": 6
},
"labels": {
"device_id": "5000009d6bbf9cee",
"place_id": 7800
},
"@timestamp": "2022-01-11T13:29:03Z",
"agent": {
"type": "dataflow",
"name": "",
"version": "1.0.0",
"id": ""
},
"data_stream": {
"type": "logs",
"dataset": "gcp.pubsub",
"namespace": "metrics"
},
"ecs": {
"version": "1.10.0"
},
"message": "{\"points\":{\"udp_active\":true,\"udp_high\":6,\"udp_medium\":6,\"udp_low\":6},\"labels\":{\"device_id\":\"5000009d6bbf9cee\",\"place_id\":7800},\"timestamp\":\"2022-01-11T13:29:03Z\"}",
"service": {
"type": "gcp.pubsub"
},
"event": {
"module": "gcp",
"dataset": "gcp.pubsub"
}
},
"fields": {
"points.udp_medium": [
6
],
"points.udp_active": [
true
],
"points.udp_high": [
6
],
"points.udp_low": [
6
],
"data_stream.namespace": [
"metrics"
],
"labels.place_id": [
7800
],
"message": [
"{\"points\":{\"udp_active\":true,\"udp_high\":6,\"udp_medium\":6,\"udp_low\":6},\"labels\":{\"device_id\":\"5000009d6bbf9cee\",\"place_id\":7800},\"timestamp\":\"2022-01-11T13:29:03Z\"}"
],
"data_stream.type": [
"logs"
],
"service.type": [
"gcp.pubsub"
],
"agent.type": [
"dataflow"
],
"labels.device_id": [
"5000009d6bbf9cee"
],
"@timestamp": [
"2022-01-11T13:29:03.000Z"
],
"event.module": [
"gcp"
],
"agent.id": [
""
],
"ecs.version": [
"1.10.0"
],
"data_stream.dataset": [
"gcp.pubsub"
],
"agent.name": [
""
],
"agent.version": [
"1.0.0"
],
"event.dataset": [
"gcp.pubsub"
]
}
}
The one below it has the same index but different ids.
Edit: Actually, all 5 million documents have the same timestamp.