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IntervalsSection

Struct IntervalsSection 

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pub struct IntervalsSection {
    pub blob_collect_secs: Option<u64>,
    pub confinement_poll_secs: Option<u64>,
    pub health_secs: Option<u64>,
    pub tree_reload_secs: Option<u64>,
}
Expand description

How often each background loop runs.

Every one of these trades freshness against load, and they are set apart because they load different things: one talks to a DNS provider with its own rate limits, one walks this server’s own disk, and one only reads state already in memory.

Reload: needs a restart. Each loop is handed its period when it is spawned.

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§blob_collect_secs: Option<u64>

Seconds between passes of the blob collector, which reclaims upload bytes nothing references once their grace window has passed.

Reasonable range: 300 to 86_400 — five minutes to a day.

This is how promptly deleted bytes come back, and each pass walks every account’s blobs. Five minutes suits a deployment near its quota, where the disk is the scarce thing. A day suits one with room to spare, where the walk is the more expensive half. Nothing is lost by a long period: a blob past its grace window stays collectable until a pass reaches it. The built-in default is an hour.

§confinement_poll_secs: Option<u64>

Seconds between passes of the confinement poll, which notices an account whose hostname no longer resolves the way this server published it.

Reasonable range: 60 to 3600 — a minute to an hour.

Each pass reads records back from the DNS provider, so this is the knob that decides how much of a provider’s rate limit this deployment spends on noticing drift. A minute catches a hijacked or clobbered record fast and costs the most requests; an hour is cheaper and leaves a wrong record standing longer. The built-in default is five minutes.

§health_secs: Option<u64>

Seconds between health ticks, which refresh what bot.did.stats and the dashboard report about this server’s own state.

Reasonable range: 5 to 300 — five seconds to five minutes.

This one costs nothing outside the process: it reads state already in memory, so the period is how stale a readout may be rather than a load question. Match it to whatever scrapes the dashboard. The built-in default is ten seconds.

§tree_reload_secs: Option<u64>

Seconds between re-reads of this configuration file for [tree]’s three bounds, which take effect without a restart.

Reasonable range: 5 to 3600 — five seconds to an hour.

Each pass reads and parses one local file, so the period is how long an operator waits for an edit to take rather than a load question. Five seconds suits raising a cap that is refusing work right now; an hour suits a file nobody edits. The built-in default is thirty seconds.

Trait Implementations§

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impl Clone for IntervalsSection

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fn clone(&self) -> IntervalsSection

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 Default for IntervalsSection

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fn default() -> IntervalsSection

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for IntervalsSection

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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 PartialEq for IntervalsSection

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for IntervalsSection

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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 Eq for IntervalsSection

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impl StructuralPartialEq for IntervalsSection

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Gets the TypeId of self. Read more
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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> From<T> for T

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where U: From<T>,

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Calls U::from(self).

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where T: Clone,

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type Owned = T

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impl<T, U> TryFrom<U> for T
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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,