Enum pingora_cache::NoCacheReason

pub enum NoCacheReason {
    NeverEnabled,
    OriginNotCache,
    ResponseTooLarge,
    StorageError,
    InternalError,
    Deferred,
    CacheLockGiveUp,
    CacheLockTimeout,
    Custom(&'static str),
}

The possible reasons for not caching

Variants

NeverEnabled

Caching is not enabled to begin with

OriginNotCache

Origin directives indicated this was not cacheable

ResponseTooLarge

Response size was larger than the cache’s configured maximum asset size

StorageError

Due to internal caching storage error

InternalError

Due to other types of internal issues

Deferred

will be cacheable but skip cache admission now

This happens when the cache predictor predicted that this request is not cacheable, but the response turns out to be OK to cache. However, it might be too large to re-enable caching for this request.

CacheLockGiveUp

The writer of the cache lock sees that the request is not cacheable (Could be OriginNotCache)

CacheLockTimeout

This request waited too long for the writer of the cache lock to finish, so this request will fetch from the origin without caching

Custom(&'static str)

Other custom defined reasons

Implementations

impl NoCacheReason

pub fn as_str(&self) -> &'static str

Convert NoCacheReason as str, for logging and debugging.

Trait Implementations

impl Clone for NoCacheReason

fn clone(&self) -> NoCacheReason

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NoCacheReason

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

Formats the value using the given formatter.

impl PartialEq for NoCacheReason

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for NoCacheReason

impl Eq for NoCacheReason

impl StructuralPartialEq for NoCacheReason