Struct DrainConfig 

pub struct DrainConfig {
    pub min_upload_interval: Duration,
    pub initial_backoff: Duration,
    pub max_backoff: Duration,
    pub held_recheck_interval: Duration,
    pub park_check_interval: Duration,
    pub max_retriable_attempts: u32,
}

Tuning for one drain loop. Production uses DrainConfig::default; tests construct short intervals (a code-level parameter, not a knob — there is no env var and the default is always right, per house rule #1a).

Fields

min_upload_interval: Duration

SPOOL-7: minimum gap between uploads (shared org rate-limit budget).

initial_backoff: Duration

First retry delay for a retriable failure; doubles per failed round.

max_backoff: Duration

Ceiling for the exponential schedule.

held_recheck_interval: Duration

How often held entries (capability not advertised / no session / anonymous) re-check — only while the outbox is non-empty (DEG-3 without violating PRIV-1).

park_check_interval: Duration

While PARKED (no pending entries), how often the loop does the LOCAL-ONLY disk check for pending entries that arrived without a Notify — a CLI’s direct spool enqueue (finding #11). The check reads the outbox (the directory listing, then the spool’s own list when entries exist) and nothing else: no transport call is ever made from the park tick itself.

max_retriable_attempts: u32

Finding F13: consecutive retriable failures (5xx/408/3xx/network) an entry may accumulate in THIS process before the drain stops re-posting it — the entry stays Queued on disk and gets a fresh budget on the next daemon start (see the module docs). At the default schedule the default of 24 is roughly five hours of retrying (30s doubling to the 15-minute ceiling, then 18 more 15-minute rounds).

Trait Implementations

impl Clone for DrainConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DrainConfig

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

Formats the value using the given formatter.

impl Default for DrainConfig

fn default() -> Self

Returns the “default value” for a type.