pub enum ComputeRuntimeRole {
Solo,
Maintenance,
}Expand description
Which of a process’s compute runtimes a given runtime is.
A clusterd process runs a single Solo runtime by default. When an interactive runtime is
configured, the process instead runs a Maintenance and an Interactive runtime side by side.
The named roles share per-process resources (persist cache, metrics registry, log spans). The
role distinguishes them so that only the globals-owning runtime runs the non-idempotent
process-global initializers, and so metric series and log spans do not collide.
Solo exists so the single-runtime default stays behaviorally identical to a deployment without
a second runtime: no role metric label, and it owns the process globals just as the sole
runtime always has.
Variants§
Solo
The sole runtime of a single-runtime process. Owns index maintenance and the process-global initializers.
Maintenance
The maintenance runtime of a two-runtime process. Owns index maintenance and the process-global initializers.
Implementations§
Source§impl ComputeRuntimeRole
impl ComputeRuntimeRole
Sourcepub fn label(self) -> Option<&'static str>
pub fn label(self) -> Option<&'static str>
The role metric/log label for this role, or None for Solo.
Solo omits the label so a single-runtime deployment registers exactly as it did before a
second runtime existed, keeping exact-match dashboards and alerts unchanged.
Sourcepub fn owns_process_globals(self) -> bool
pub fn owns_process_globals(self) -> bool
Whether this role runs the non-idempotent, process-global initializers.
Solo and Maintenance run them. An interactive runtime shares the same process and
inherits the globals maintenance installs, so re-running them would either double-apply a
non-idempotent effect or race maintenance.
NOTE: every role a release build can construct owns the globals, so this is constantly true outside tests. The distinction becomes load-bearing when the interactive runtime lands.
Trait Implementations§
Source§impl Clone for ComputeRuntimeRole
impl Clone for ComputeRuntimeRole
Source§fn clone(&self) -> ComputeRuntimeRole
fn clone(&self) -> ComputeRuntimeRole
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreimpl Copy for ComputeRuntimeRole
Source§impl Debug for ComputeRuntimeRole
impl Debug for ComputeRuntimeRole
impl Eq for ComputeRuntimeRole
Source§impl PartialEq for ComputeRuntimeRole
impl PartialEq for ComputeRuntimeRole
impl StructuralPartialEq for ComputeRuntimeRole
Auto Trait Implementations§
impl Freeze for ComputeRuntimeRole
impl RefUnwindSafe for ComputeRuntimeRole
impl Send for ComputeRuntimeRole
impl Sync for ComputeRuntimeRole
impl Unpin for ComputeRuntimeRole
impl UnsafeUnpin for ComputeRuntimeRole
impl UnwindSafe for ComputeRuntimeRole
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