Struct qiniu_http_client::RequestRetrierOptions

impl<'a> RequestRetrierOptions<'a>

pub fn builder(
response_error: &'a ResponseError,
retried: &'a RetriedStatsInfo
) -> RequestRetrierOptionsBuilder<'a>

创建重试器选项构建器

Examples found in repository ?

src/client/call/send_http_request.rs (line 96)

fn handle_response_error(
    mut response_error: ResponseError,
    http_parts: &mut HttpRequestParts,
    parts: &InnerRequestParts<'_>,
    retried: &mut RetriedStatsInfo,
) -> TryError {
    let retry_result = parts.http_client().request_retrier().retry(
        http_parts,
        RequestRetrierOptions::builder(&response_error, retried)
            .idempotent(parts.idempotent())
            .build(),
    );
    retried.increase_current_endpoint();
    response_error = response_error.set_retry_decision(retry_result.decision());
    TryError::new(response_error, retry_result)
}

pub fn idempotent(&self) -> Idempotent

是否是幂等请求

Examples found in repository ?

src/client/retrier/error.rs (line 23)

    fn retry(&self, request: &mut HttpRequestParts, opts: RequestRetrierOptions) -> RetryResult {
        return match opts.response_error().kind() {
            ResponseErrorKind::HttpError(http_err_kind) => match http_err_kind {
                HttpResponseErrorKind::ProtocolError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::InvalidUrl => RetryDecision::TryNextServer,
                HttpResponseErrorKind::ConnectError => RetryDecision::TryNextServer,
                HttpResponseErrorKind::ProxyError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::DnsServerError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::UnknownHostError => RetryDecision::TryNextServer,
                HttpResponseErrorKind::SendError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::ReceiveError | HttpResponseErrorKind::UnknownError => {
                    if is_idempotent(request, opts.idempotent()) {
                        RetryDecision::RetryRequest
                    } else {
                        RetryDecision::DontRetry
                    }
                }
                HttpResponseErrorKind::LocalIoError => RetryDecision::DontRetry,
                HttpResponseErrorKind::TimeoutError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::ServerCertError => RetryDecision::TryAlternativeEndpoints,
                HttpResponseErrorKind::ClientCertError => RetryDecision::DontRetry,
                HttpResponseErrorKind::TooManyRedirect => RetryDecision::DontRetry,
                HttpResponseErrorKind::CallbackError => RetryDecision::DontRetry,
                _ => RetryDecision::RetryRequest,
            },
            ResponseErrorKind::UnexpectedStatusCode(_) => RetryDecision::DontRetry,
            ResponseErrorKind::StatusCodeError(status_code) => match status_code.as_u16() {
                0..=399 => panic!("Should not arrive here"),
                400..=499 | 501 | 579 | 608 | 612 | 614 | 616 | 618 | 630 | 631 | 632 | 640 | 701 => {
                    RetryDecision::DontRetry
                }
                509 | 573 => RetryDecision::Throttled,
                _ => RetryDecision::TryNextServer,
            },
            ResponseErrorKind::ParseResponseError | ResponseErrorKind::UnexpectedEof => {
                if is_idempotent(request, opts.idempotent()) {
                    RetryDecision::RetryRequest
                } else {
                    RetryDecision::DontRetry
                }
            }
            ResponseErrorKind::MaliciousResponse => RetryDecision::RetryRequest,
            ResponseErrorKind::NoTry | ResponseErrorKind::SystemCallError => RetryDecision::DontRetry,
        }
        .into();

        fn is_idempotent(request: &HttpRequestParts, idempotent: Idempotent) -> bool {
            match idempotent {
                Idempotent::Always => true,
                Idempotent::Default => request.method().is_safe(),
                Idempotent::Never => false,
            }
        }
    }

pub fn response_error(&self) -> &ResponseError

获取响应错误

Examples found in repository ?

src/client/retrier/error.rs (line 13)

    fn retry(&self, request: &mut HttpRequestParts, opts: RequestRetrierOptions) -> RetryResult {
        return match opts.response_error().kind() {
            ResponseErrorKind::HttpError(http_err_kind) => match http_err_kind {
                HttpResponseErrorKind::ProtocolError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::InvalidUrl => RetryDecision::TryNextServer,
                HttpResponseErrorKind::ConnectError => RetryDecision::TryNextServer,
                HttpResponseErrorKind::ProxyError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::DnsServerError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::UnknownHostError => RetryDecision::TryNextServer,
                HttpResponseErrorKind::SendError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::ReceiveError | HttpResponseErrorKind::UnknownError => {
                    if is_idempotent(request, opts.idempotent()) {
                        RetryDecision::RetryRequest
                    } else {
                        RetryDecision::DontRetry
                    }
                }
                HttpResponseErrorKind::LocalIoError => RetryDecision::DontRetry,
                HttpResponseErrorKind::TimeoutError => RetryDecision::RetryRequest,
                HttpResponseErrorKind::ServerCertError => RetryDecision::TryAlternativeEndpoints,
                HttpResponseErrorKind::ClientCertError => RetryDecision::DontRetry,
                HttpResponseErrorKind::TooManyRedirect => RetryDecision::DontRetry,
                HttpResponseErrorKind::CallbackError => RetryDecision::DontRetry,
                _ => RetryDecision::RetryRequest,
            },
            ResponseErrorKind::UnexpectedStatusCode(_) => RetryDecision::DontRetry,
            ResponseErrorKind::StatusCodeError(status_code) => match status_code.as_u16() {
                0..=399 => panic!("Should not arrive here"),
                400..=499 | 501 | 579 | 608 | 612 | 614 | 616 | 618 | 630 | 631 | 632 | 640 | 701 => {
                    RetryDecision::DontRetry
                }
                509 | 573 => RetryDecision::Throttled,
                _ => RetryDecision::TryNextServer,
            },
            ResponseErrorKind::ParseResponseError | ResponseErrorKind::UnexpectedEof => {
                if is_idempotent(request, opts.idempotent()) {
                    RetryDecision::RetryRequest
                } else {
                    RetryDecision::DontRetry
                }
            }
            ResponseErrorKind::MaliciousResponse => RetryDecision::RetryRequest,
            ResponseErrorKind::NoTry | ResponseErrorKind::SystemCallError => RetryDecision::DontRetry,
        }
        .into();

        fn is_idempotent(request: &HttpRequestParts, idempotent: Idempotent) -> bool {
            match idempotent {
                Idempotent::Always => true,
                Idempotent::Default => request.method().is_safe(),
                Idempotent::Never => false,
            }
        }
    }

pub fn retried(&self) -> &RetriedStatsInfo

获取重试统计信息

Examples found in repository ?

src/client/retrier/limited.rs (line 21)

    fn retry(self, decision: RetryDecision, retries: usize, opts: RequestRetrierOptions) -> RetryDecision {
        match self {
            Self::LimitCurrentEndpoint => match decision {
                RetryDecision::RetryRequest | RetryDecision::Throttled
                    if opts.retried().retried_on_current_endpoint() >= retries =>
                {
                    RetryDecision::TryNextServer
                }
                result => result,
            },
            Self::LimitTotal => match decision {
                RetryDecision::RetryRequest | RetryDecision::Throttled if opts.retried().retried_total() >= retries => {
                    RetryDecision::DontRetry
                }
                result => result,
            },
        }
    }

Trait Implementations§

impl<'a> Clone for RequestRetrierOptions<'a>

fn clone(&self) -> RequestRetrierOptions<'a>

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl<'a> Debug for RequestRetrierOptions<'a>

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

Formats the value using the given formatter. Read more

impl<'a> Copy for RequestRetrierOptions<'a>

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impl<'a> !UnwindSafe for RequestRetrierOptions<'a>

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