mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-15 08:23:34 +01:00
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
// Copyright 2014 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package storage
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import (
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"context"
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"io"
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"net/url"
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"strings"
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"cloud.google.com/go/internal"
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gax "github.com/googleapis/gax-go/v2"
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"google.golang.org/api/googleapi"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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// runWithRetry calls the function until it returns nil or a non-retryable error, or
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// the context is done.
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func runWithRetry(ctx context.Context, call func() error) error {
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return internal.Retry(ctx, gax.Backoff{}, func() (stop bool, err error) {
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err = call()
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if err == nil {
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return true, nil
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}
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if shouldRetry(err) {
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return false, err
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}
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return true, err
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})
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}
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func shouldRetry(err error) bool {
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if err == io.ErrUnexpectedEOF {
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return true
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}
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switch e := err.(type) {
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case *googleapi.Error:
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// Retry on 429 and 5xx, according to
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// https://cloud.google.com/storage/docs/exponential-backoff.
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return e.Code == 429 || (e.Code >= 500 && e.Code < 600)
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case *url.Error:
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// Retry socket-level errors ECONNREFUSED and ENETUNREACH (from syscall).
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// Unfortunately the error type is unexported, so we resort to string
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// matching.
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retriable := []string{"connection refused", "connection reset"}
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for _, s := range retriable {
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if strings.Contains(e.Error(), s) {
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return true
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}
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}
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case interface{ Temporary() bool }:
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if e.Temporary() {
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return true
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}
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}
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// HTTP 429, 502, 503, and 504 all map to gRPC UNAVAILABLE per
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// https://grpc.github.io/grpc/core/md_doc_http-grpc-status-mapping.html.
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//
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// This is only necessary for the experimental gRPC-based media operations.
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if st, ok := status.FromError(err); ok && st.Code() == codes.Unavailable {
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return true
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}
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// Unwrap is only supported in go1.13.x+
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if e, ok := err.(interface{ Unwrap() error }); ok {
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return shouldRetry(e.Unwrap())
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}
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return false
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}
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