The previous day's data cannot be queried in the grafana UI, but it can be successfully returned using an API request

Grafana Loki
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Hi there,

I have encountered an issue while querying my Loki instance via Grafana.

My current set up involves Loki version 2.9.1 and Grafana version 8.3.5. I’m trying to retrieve logs from my Loki instance through Grafana’s explore view but despite setting the same time range as my cURL requests to the /loki/api/v1/query endpoint of the Querier component, I’m not receiving any data in Grafana.

Interestingly, these cURL requests to Loki are successful and return the expected data for exactly the same time range. The datasource in Grafana is configured to use the Querier component’s port 3100.

Here are some screenshots illustrating the issue:

grafana_datasource
grafana_datasource2668×1486 171 KB

grafana_query
grafana_query3130×858 179 KB

local_curl_query
local_curl_query1920×1523 102 KB

querier_info
querier_info2628×174 67.8 KB

Could someone please help me understand why this might be happening?

Thank you so much for your assistance!

2

Sorry for the mistake, I’m using the /loki/api/v1/query interface, which only queries for the current time.

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