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SupervisorEntry

Struct SupervisorEntry 

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pub struct SupervisorEntry {
Show 17 fields pub module_id: String, pub state: String, pub enabled: bool, pub live: bool, pub health: SupervisorHealthStatus, pub last_probe_ms: Option<u64>, pub last_exit_code: Option<i32>, pub last_exit_signal: Option<i32>, pub last_exit_ms: Option<u64>, pub last_exit_kind: Option<TerminalExitKind>, pub restart_count: Option<u32>, pub max_restarts: Option<u32>, pub lifetime_restarts: Option<u32>, pub restart_window_secs: Option<u64>, pub drain_timeout_ms: Option<u64>, pub restart_backoff_ms: Option<u64>, pub restart_max_backoff_ms: Option<u64>,
}

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§module_id: String§state: String§enabled: bool§live: bool§health: SupervisorHealthStatus§last_probe_ms: Option<u64>

When the daemon last collected this module’s health, as unix milliseconds. Absent means NEVER PROBED (a module inside its first probe window, whose health is therefore Unknown rather than good), not probed-long-ago. An old value and an absent one call for opposite readings, so do not render them alike.

§last_exit_code: Option<i32>

Exit code of the module’s most recent process exit, if the process has exited at least once. Survives respawn so a now-running module still reports what killed its previous incarnation.

§last_exit_signal: Option<i32>

Terminating signal of the module’s most recent process exit (Unix), if any. Some(9) = SIGKILL (OOM/jetsam/kill-on-drop), Some(6) = SIGABRT (often a panic-abort). Survives respawn.

§last_exit_ms: Option<u64>

Unix milliseconds when the most recent child exit was observed. Present even when the terminal ring is not queried, so existing list readers can order their latest observed exit against events they already received.

§last_exit_kind: Option<TerminalExitKind>

Classification of the most recent child exit. Absent on daemons that predate exit-kind reporting.

§restart_count: Option<u32>

Replacement processes spawned for this module so far, against the budget that disables it.

THIS IS THE COUNTER THAT ENDS A MODULE, and it is not the one beside it. SupervisorHealthEntry::consecutive_failures returns to zero on any successful probe, so a module can miss probes all day and read zero; this one only decreases when an operator restarts, reloads, or re-enables the module. Reaching the budget moves it to Failed and it stays there until somebody intervenes.

So a module one restart from being disabled is indistinguishable from a freshly booted one unless this pair is read. Both are reported together because the count alone does not say how close it is.

Absent from daemons predating the field, which is why it is optional rather than defaulted to zero: zero would assert a full budget.

§max_restarts: Option<u32>

Replacement processes this module is allowed before it is disabled. See restart_count; absent on daemons predating the field.

§lifetime_restarts: Option<u32>

Replacement processes spawned over this module’s entire supervisor lifetime. Unlike restart_count, this value is never reset by an operator action.

§restart_window_secs: Option<u64>

The span restart_count is counted over, in seconds. The crash budget is a RATE, not a lifetime total: restart_count counts only the restarts inside the last restart_window_secs, and older ones no longer hold a slot. Without this field a reader cannot tell “2 of 3 crashes, ever” from “2 of 3 crashes in the last ten minutes”, and those two call for opposite reactions.

Absent on daemons predating the windowed budget, where the count really was a lifetime total.

§drain_timeout_ms: Option<u64>

Effective drain budget for this module, in milliseconds. This is the resolved policy the running supervisor uses, not a config-file reread. Absent on older daemons.

§restart_backoff_ms: Option<u64>

Effective base delay before a crash restart, in milliseconds. Absent on older daemons.

§restart_max_backoff_ms: Option<u64>

Effective maximum delay before a crash restart, in milliseconds. Absent on older daemons.

Trait Implementations§

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impl Clone for SupervisorEntry

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fn clone(&self) -> SupervisorEntry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for SupervisorEntry

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for SupervisorEntry

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for SupervisorEntry

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impl PartialEq for SupervisorEntry

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl Serialize for SupervisorEntry

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

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for SupervisorEntry

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.