Enum LookupError 

pub enum LookupError {
    TooManyRows,
    TooManyPages,
    TooManyMembershipReads,
}

A bounded lookup that could not prove membership or absence for one id. Every variant fails closed for that id only; retryability differs.

Variants

TooManyRows

At least MAX_LOOKUP_ROWS rows for this object, with more remaining, and none of those read belongs to a member pack. Not retryable: it persists while the object has that many index rows in this repository. Rows of packs that never became members are removed by §13 GC (WP-5.3a); rows of member packs are not.

TooManyPages

The call used all MAX_LOOKUP_PAGES scan pages before this id’s scan finished. Retryable in a call with fewer ids.

TooManyMembershipReads

The call’s membership-read budget ran out before a member was found in this id’s candidates. Retryable in a call with fewer ids, unless the id’s own candidates span more than MAX_LOOKUP_MEMBERSHIP_READS membership partitions before its first member.

Trait Implementations

impl Clone for LookupError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LookupError

impl Debug for LookupError

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

Formats the value using the given formatter.

impl Display for LookupError

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

Formats the value using the given formatter.

impl Eq for LookupError

impl Error for LookupError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl PartialEq for LookupError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LookupError