Struct MetricsConfig 

pub struct MetricsConfig {
    pub addr: Option<String>,
    pub prefix: String,
    pub buffer_size: Option<usize>,
    pub tags: BTreeMap<String, String>,
}

Configuration for the DogStatsD metrics exporter.

When addr is None, metrics are no-ops (the global recorder is never installed).

Environment Variables

• OS__METRICS__ADDR — StatsD address (e.g. 127.0.0.1:8125 or unixgram:///tmp/statsd.sock)
• OS__METRICS__PREFIX — global metric name prefix
• OS__METRICS__BUFFER_SIZE — maximum payload length in bytes
• OS__METRICS__TAGS__KEY=value — per-key global tags

Fields

addr: Option<String>

Remote address to forward metrics to.

When None, metrics are disabled (the global recorder is not installed and all metric calls are no-ops).

For UDP, the address must be in the format <host>:<port> (e.g. 127.0.0.1:8125). For Unix domain sockets, use the format <scheme>://<path>, where the scheme is either unix (stream, SOCK_STREAM) or unixgram (datagram, SOCK_DGRAM).

Default

None (metrics disabled)

Environment Variable

OS__METRICS__ADDR

prefix: String

Global prefix prepended to every metric name.

The prefix is prepended to every metric name, with a . separator added automatically.

Default

"objectstore"

Environment Variable

OS__METRICS__PREFIX

buffer_size: Option<usize>

Maximum payload length in bytes.

Controls the maximum size per StatsD payload. Should match the Datadog Agent’s dogstatsd_buffer_size setting. If None, the exporter uses its default (1432 bytes for UDP, 8192 bytes for Unix sockets).

Default

None (exporter default)

Environment Variable

OS__METRICS__BUFFER_SIZE

tags: BTreeMap<String, String>

Global tags applied to all metrics.

Key-value pairs attached to every emitted metric. Useful for identifying environment, region, or other deployment-specific dimensions.

Default

Empty (no tags)

Environment Variables

Each tag is set individually:

• OS__METRICS__TAGS__FOO=foo
• OS__METRICS__TAGS__BAR=bar

YAML Example

metrics:
  tags:
    foo: foo
    bar: bar

Trait Implementations

impl Clone for MetricsConfig

fn clone(&self) -> MetricsConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetricsConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetricsConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetricsConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetricsConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.