{"record":{"id":"e44f4a53ce64e5e1","repo":"fish2018/pansou","slug":"d-w","errorCode":null,"errorMessage":"重试 %d 次后仍然失败: %w","messagePattern":"重试 (.+?) 次后仍然失败: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"plugin/ahhhhfs/ahhhhfs.go","lineNumber":535,"sourceCode":"\t\t\tbackoff := time.Duration(1<<uint(i-1)) * 200 * time.Millisecond\n\t\t\ttime.Sleep(backoff)\n\t\t}\n\t\t\n\t\t// 克隆请求避免并发问题\n\t\treqClone := req.Clone(req.Context())\n\t\t\n\t\tresp, err := client.Do(reqClone)\n\t\tif err == nil && resp.StatusCode == 200 {\n\t\t\treturn resp, nil\n\t\t}\n\t\t\n\t\tif resp != nil {\n\t\t\tresp.Body.Close()\n\t\t}\n\t\tlastErr = err\n\t}\n\t\n\treturn nil, fmt.Errorf(\"重试 %d 次后仍然失败: %w\", maxRetries, lastErr)\n}\n\n","sourceCodeStart":517,"sourceCodeEnd":538,"githubUrl":"https://github.com/fish2018/pansou/blob/beaa56133755a548ebc51b090b3816e2ae044aa6/plugin/ahhhhfs/ahhhhfs.go#L517-L538","documentation":"This error is returned by doRequestWithRetry in the ahhhhfs plugin after all retry attempts to fetch the site have failed. The original error is wrapped with %w, so errors.Is/errors.As can be used to inspect the root cause. It indicates the HTTP request to the source site persistently failed across the full retry budget.","triggerScenarios":"searchImpl calls doRequestWithRetry, which loops up to maxRetries times; every attempt returns a non-nil error (connection refused, TLS error, timeout, DNS failure), so the loop exits and the plugin returns this wrapped error.","commonSituations":"The ahhhhfs site is down or blocked by the developer's network/firewall; DNS resolution fails; the site applies anti-bot blocks (403) that retry cannot fix; the configured timeout is too short for a slow connection.","solutions":["Inspect the wrapped lastErr (errors.Unwrap or %v printing) to see the root cause: network unreachable vs timeout vs TLS.","Verify the site URL is reachable from your machine (curl -v the configured base URL) and check DNS/proxy settings.","Increase maxRetries or defaultTimeout in the plugin config if the site is slow but reachable.","If the site blocks automated clients, update request headers (User-Agent, cookies) or use a proxy/mirror URL.","Wait and retry later if the source site itself is temporarily down."],"exampleFix":"// before\nresults, err := provider.Search(ctx, keyword)\nif err != nil {\n\tlog.Fatalf(\"search failed: %v\", err)\n}\n// after\nresults, err := provider.Search(ctx, keyword)\nif err != nil {\n\tvar netErr net.Error\n\tif errors.As(err, &netErr) && netErr.Timeout() {\n\t\tlog.Println(\"source timed out after retries; retry later or raise timeout\")\n\t} else {\n\t\tlog.Printf(\"search failed: %v\", err) // root cause preserved via %w\n\t}\n\treturn\n}","handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":"results, err := provider.Search(ctx, keyword)\nif err != nil {\n\tvar netErr net.Error\n\tif errors.As(err, &netErr) && netErr.Timeout() {\n\t\t// schedule a later retry with backoff\n\t} else {\n\t\t// surface root cause via errors.Unwrap for diagnostics\n\t}\n}","preventionTips":["Health-check the source site URL before starting searches.","Configure a sane retry count and timeout instead of defaults.","Route requests through a proxy if the source site is geo-blocked.","Keep request headers/cookies current to avoid anti-bot blocks."],"tags":["network","retry","http-client","go"],"backgroundTag":"http-request-failed","analyzedSha":"beaa56133755a548ebc51b090b3816e2ae044aa6","analyzedAt":"2026-09-07T00:31:18.025Z","contentChangedAt":"2026-09-07T00:31:18.025Z","schemaVersion":2},"datasetVersion":"2026-09-15T23:17:13.987Z"}