Hello there,
Iam trying to make my Data visible in the Discover Tab of Kibana and it's just not working out for me.
Iam sitting on a project for my studies and built a weather station. The station submits its data once a minute to the elastic search database:
--header 'Authorization: Basic hello' \
--header 'Content-Type: application/json' \
--data-raw '{
"properties": {
"humidity": "80.8926024542",
"pressure": "999.55501023",
"temperature": "-2.26",
"@timestamp": "2021-01-29T13:30:01+01:00"
}
}'
I put elastic search behind a reverse proxy, thats why there is a basic auth.
The cluster happily acknowledges this and the entry is visible in elastic:
"_index": "weather-test",
"_type": "_doc",
"_id": "tyIkTncBVIHFgv-pcAnD",
"_score": 1.0,
"_source": {
"properties": {
"humidity": 72.6349751508,
"pressure": 995.37218785,
"temperature": 0.33,
"@timestamp": "2021-01-29T13:35:46+01:00"
}
}
}
The Mapping looks as follows:
{
"weather-test": {
"mappings": {
"properties": {
"@timestamp": {
"type": "date",
"format": "date_optional_time"
},
"humidity": {
"type": "double"
},
"pressure": {
"type": "double"
},
"properties": {
"properties": {
"@timestamp": {
"type": "date"
},
"humidity": {
"type": "float"
},
"pressure": {
"type": "float"
},
"temperature": {
"type": "float"
}
}
},
"temperature": {
"type": "double"
}
}
}
}
}
The problem is, that no amount of filtering or tinkering around shows a result in Discover. Here is the request that it sends:
{
"version": true,
"size": 500,
"sort": [
{
"@timestamp": {
"order": "desc",
"unmapped_type": "boolean"
}
}
],
"aggs": {
"2": {
"date_histogram": {
"field": "@timestamp",
"calendar_interval": "1w",
"time_zone": "Europe/Berlin",
"min_doc_count": 1
}
}
},
"stored_fields": [
"*"
],
"script_fields": {},
"docvalue_fields": [
{
"field": "@timestamp",
"format": "date_time"
},
{
"field": "properties.@timestamp",
"format": "date_time"
}
],
"_source": {
"excludes": []
},
"query": {
"bool": {
"must": [],
"filter": [
{
"match_all": {}
},
{
"range": {
"@timestamp": {
"gte": "2020-01-29T13:02:42.164Z",
"lte": "2021-01-29T13:02:42.164Z",
"format": "strict_date_optional_time"
}
}
}
],
"should": [],
"must_not": []
}
},
"highlight": {
"pre_tags": [
"@kibana-highlighted-field@"
],
"post_tags": [
"@/kibana-highlighted-field@"
],
"fields": {
"*": {}
},
"fragment_size": 2147483647
}
}
And the response:
{
"took": 849,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 0,
"max_score": null,
"hits": []
},
"aggregations": {
"2": {
"buckets": []
}
}
}
The elasticsearch server and kibana is running on the same server, a raspberry pi 4 with 4gb ram and the resources arent exhausted in any way.
I also have an index pattern where @timestamp is recognized as a timestamp with the type of date. Its searchable and Aggregatable. With the exception of the timestamp feature this applies also the pressure, humidity and temperature.
