Struct VersionInfo 

pub struct VersionInfo {
    pub binary_version: String,
    pub protocol_min: u32,
    pub protocol_max: u32,
    pub log_format_min: u32,
    pub log_format_max: u32,
    pub snapshot_format_min: u32,
    pub snapshot_format_max: u32,
    pub feature_set: BTreeSet<String>,
}

Version and format compatibility envelope every node advertises (spec section 11.8; ADR-0010 decision 5).

Ranges are inclusive. The derived Default describes a descriptor written before Stage 2H that never carried an advertisement: its zeroed ranges overlap only other zeroed ranges, so a missing advertisement fails closed against any real one (spec section 4.10).

Fields

binary_version: String

Engine package version of the running binary (CARGO_PKG_VERSION).

protocol_min: u32

Oldest wire-protocol version accepted.

protocol_max: u32

Newest wire-protocol version spoken.

log_format_min: u32

Oldest committed-command log format read.

log_format_max: u32

Newest committed-command log format written.

snapshot_format_min: u32

Oldest replicated snapshot format read.

snapshot_format_max: u32

Newest replicated snapshot format written.

feature_set: BTreeSet<String>

Names of cluster features this build can activate; the advertised set gates feature activation (spec section 11.8 step 5).

Implementations

impl VersionInfo

pub fn current() -> Self

The advertisement of the running binary, sourced from the build environment and this crate’s declared format ranges.

pub fn is_compatible_with(&self, other: &Self) -> Result<(), Incompatibility>

Verify that this node and other can interoperate in one cluster.

Compatibility requires every advertised range pair to overlap: with the N/N-1 support window (spec section 17) an N binary accepts [N-1, N] and an N-1 binary accepts [N-1, N-1], which overlap, while a two-version skew does not. Failures fail closed with a typed Incompatibility naming the first non-overlapping range.

Trait Implementations

impl Clone for VersionInfo

fn clone(&self) -> VersionInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionInfo

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

Formats the value using the given formatter.

impl Default for VersionInfo

fn default() -> VersionInfo

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for VersionInfo

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for VersionInfo

impl PartialEq for VersionInfo

fn eq(&self, other: &VersionInfo) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for VersionInfo

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for VersionInfo