Enum BackendConnectionError 

pub enum BackendConnectionError {
    NotFound(ObjectKind),
    MaxConnectionRetries(Option<ClusterId>),
    MaxSessionsMemory,
    Backend(BackendError),
    RetrieveClusterError(RetrieveClusterError),
    MaxBuffers,
    TooManyConnectionsPerIp {
        cluster_id: ClusterId,
    },
    ReplayRefused(&'static str),
}

Variants

NotFound(ObjectKind)

MaxConnectionRetries(Option<ClusterId>)

MaxSessionsMemory

Backend(BackendError)

RetrieveClusterError(RetrieveClusterError)

MaxBuffers

TooManyConnectionsPerIp

Per-(cluster, source-IP) connection limit reached. The protocol layer translates this into HTTP 429 Too Many Requests (with an optional Retry-After) for HTTP/HTTPS sessions, or a graceful TCP close for raw TCP. The cluster_id is included so log/metric pipelines can attribute the rejection.

Fields

cluster_id: ClusterId

ReplayRefused(&'static str)

A stale-upstream replay could not be carried out. Stream::retry_buffer holds H1 wire bytes captured under the FIRST attempt’s routing decision, so the replay is valid only while that decision still holds: the cluster must still be known and must still speak H1. When it does not, the protocol layer answers 502 Bad Gateway — the same answer the stream received before the replay existed (sozu-proxy/sozu#1442) — rather than framing raw H1 text as an HTTP/2 DATA payload or re-routing a front kawa whose blocks are already drained.

Trait Implementations

impl Debug for BackendConnectionError

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

Formats the value using the given formatter.

impl Display for BackendConnectionError

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

Formats the value using the given formatter.

impl Error for BackendConnectionError

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.