Enum KernelServiceError 

pub enum KernelServiceError {
    Kernel(KernelError),
    Overloaded,
    TenantTableFull,
    Timeout,
    Middleware(String),
}

Errors returned by the kernel service stack.

Variants

Kernel(KernelError)

Inner kernel evaluation failed.

Overloaded

Tenant or global service saturation caused load shedding.

TenantTableFull

The per-tenant bucket table is at capacity and this tenant has no bucket. Distinct from Overloaded (a per-tenant concurrency shed) so a full table is observable separately; maps to the same shed edge.

Timeout

Request exceeded the configured tower timeout.

Middleware(String)

Middleware returned an unexpected error shape.

Trait Implementations

impl Debug for KernelServiceError

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

Formats the value using the given formatter.

impl Display for KernelServiceError

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

Formats the value using the given formatter.

impl Error for KernelServiceError

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 From<KernelError> for KernelServiceError

fn from(source: KernelError) -> Self

Converts to this type from the input type.