VictoriaMetrics/VictoriaMetrics · error

value doesn't contain int64; it contains %s

Error message

value doesn't contain int64; it contains %s

What it means

`getInt64` found the key but the JSON value is not a number type, so it rejects it with a message naming the actual fastjson type. Integers must arrive as JSON numbers; strings like `"1700000000"` or floats used for integer fields are rejected.

Source

Thrown at lib/protoparser/zabbixconnector/parser.go:223

	}
	switch v.Type() {
	case fastjson.TypeNumber:
		return v.Float64()
	default:
		return 0, fmt.Errorf("value doesn't contain float64; it contains %s", v.Type())
	}
}

func getInt64(o *fastjson.Value, k string) (int64, error) {
	v := o.Get(k)
	if v == nil {
		return 0, fmt.Errorf("value is not exist")
	}
	switch v.Type() {
	case fastjson.TypeNumber:
		return v.Int64()
	default:
		return 0, fmt.Errorf("value doesn't contain int64; it contains %s", v.Type())
	}
}

func getArray(o *fastjson.Value, k string) ([]*fastjson.Value, error) {
	v := o.Get(k)
	if v == nil {
		return nil, fmt.Errorf("value is not exist")
	}
	switch v.Type() {
	case fastjson.TypeArray:
		return v.Array()
	default:
		return nil, fmt.Errorf("value doesn't contain array; it contains %s", v.Type())
	}
}

// Tag represents metric tag
type Tag struct {

View on GitHub (pinned to 5079fb58f1)

Solutions

1. Send the field as an unquoted integer: `"clock": 1700000000`
2. Fix string interpolation in the payload builder to keep numeric types
3. For sources that genuinely emit strings, parse to int64 before JSON marshaling

Example fix

// before
{"clock": "1700000000"}
// after
{"clock": 1700000000}

if (!Number.isInteger(row.clock)) {
  throw new Error("clock must be an integer, got: " + JSON.stringify(row.clock));
}

function isInt64(v) {
  return typeof v === "number" && Number.isInteger(v) && Math.abs(v) <= Number.MAX_SAFE_INTEGER;
}

When it happens

Trigger: `"clock": "1700000000"` (quoted timestamp); a float such as `1700000000.5` where the parser expects Int64 semantics; boolean or null in an int field.

Common situations: Shell/PHP senders quoting all values; JavaScript producers serializing timestamps via String(); data pipelines that round-trip numbers through strings.

Related errors

• value doesn't contain float64; it contains %s
• value doesn't contain array; it contains %s
• value doesn't contain float64; it contains %s
• missing `host` object
• missing `host` element in `host` object

AI-assisted analysis of VictoriaMetrics/VictoriaMetrics@5079fb58f1 (2026-09-03). Data as JSON: /api/errors/4c058f80ac7c0809. Report an issue: GitHub.