Errors when trying to count_over_time using Grafana

[covalschi]

Description:

Executing count_over_time({job="heplify-server"}[5m]) using Grafana 11.2 results in 500 Internal Server Error from qryn.

Full query parameters:

{
  "request": {
    "url": "api/ds/query?ds_type=loki&requestId=explore_law_1",
    "method": "POST",
    "data": {
      "queries": [
        {
          "refId": "A",
          "expr": "count_over_time({job=\"heplify-server\"}[5m])",
          "queryType": "range",
          "datasource": {
            "type": "loki",
            "uid": "ee0567uwmc9a8f"
          },
          "editorMode": "code",
          "step": "",
          "legendFormat": "",
          "datasourceId": 171,
          "intervalMs": 1000,
          "maxDataPoints": 2523
        }
      ],
      "from": "1728328890000",
      "to": "1728332490102"
    },
    "hideFromInspector": false
  },
  "response": {
    "results": {
      "A": {
        "error": "Internal Server Error",
        "errorSource": "downstream",
        "status": 500,
        "refId": "A"
      }
    }
  }
}

Notes:

• Removing count_over_time returns logs as usual (valid data)
• Adding post-processing, like count_over_time({job="heplify-server"} |~ `$search` [$__interval]), also removes the error (did not check for data validity)
• Switching query type from "Range" to "Instant" in Grafana UI also removes the error (did not check for data validity)
• Issue not present in [email protected], [email protected] demonstrates similar behaviour

System settings:
qryn+clickhouse server

sse4.2 supported, proxmox virtual machine
6.8.0-45-generic
Ubuntu 24.04.1 LTS
ClickHouse local version 24.9.2.42 (official build). (via clickhouse repository)
node v18.19.1
[email protected] (intalled via npm as global package)
NODE_PORT=3100
CLICKHOUSE_SERVER="localhost"
CLICKHOUSE_AUTH="default:PASSWD" (sha256)
CLICKHOUSE_DB="qryn"
NODE_OPTIONS="--max-old-space-size=8192"
LOG_LEVEL="debug"

grafana server

proxmox virtual machine
5.4.0-174-generic
Ubuntu 20.04.6 LTS
Grafana Version 11.2.2 (commit: c47b921ef40c0c411e9bad2cac05eb6c540c0979, branch: HEAD) (recently updated from 10.4 via Grafana apt repo)

[akvlad]

fixed in 3.2.34 #587
Feel free to try.

[akvlad]

closing issue as fixed.