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BlockReason

etl::ops

Enum BlockReason 

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#[non_exhaustive]
pub enum BlockReason {
    Capacity,
    NotReady,
}
Expand description

Why a batch could not complete yet. Both cases are retried with the resume cursor, but only BlockReason::Capacity engages the driver’s backpressure controller — a not-ready wait is an upstream dependency (e.g. a schema fetch), not sink pressure, and pausing the source for it would misreport the pipeline’s state.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Capacity

The terminal stage could not accept more output (a shard queue is full): genuine backpressure.

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NotReady

A deserializer reported DeserError::NotReady: the payload replays once its dependency arrives. Counted on etl_deser_not_ready_total.

Trait Implementations§

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impl Clone for BlockReason

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fn clone(&self) -> BlockReason

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 BlockReason

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

Formats the value using the given formatter. Read more
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impl PartialEq for BlockReason

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fn eq(&self, other: &BlockReason) -> 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 Copy for BlockReason

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impl Eq for BlockReason

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impl StructuralPartialEq for BlockReason

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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