{"record":{"id":"28aedee7e0d2c84f","repo":"fish2018/pansou","slug":"d-w-28aede","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/nsgame/nsgame.go","lineNumber":510,"sourceCode":"\n\t\t// 克隆请求避免并发问题\n\t\treqClone := req.Clone(req.Context())\n\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\n\t\tif resp != nil {\n\t\t\tresp.Body.Close()\n\t\t}\n\t\tlastErr = err\n\t\tif lastErr == nil {\n\t\t\tlastErr = fmt.Errorf(\"HTTP 状态码 %d\", resp.StatusCode)\n\t\t}\n\t}\n\n\treturn nil, fmt.Errorf(\"重试 %d 次后仍然失败: %w\", maxRetries, lastErr)\n}\n","sourceCodeStart":492,"sourceCodeEnd":512,"githubUrl":"https://github.com/fish2018/pansou/blob/beaa56133755a548ebc51b090b3816e2ae044aa6/plugin/nsgame/nsgame.go#L492-L512","documentation":"nsgame's doRequestWithRetry exhausts all maxRetries attempts without success and returns the final underlying error wrapped as '仍然失败 after N retries'. This is a terminal aggregate error: the actual root cause is inside the wrapped lastErr (transport error or HTTP status code).","triggerScenarios":"searchImpl or fetchDetail issues a request that fails on every retry iteration — persistent network failure, sustained non-200 responses, or server-side blocking across all attempts within the retry window.","commonSituations":"Site nsthwj.cn is down for maintenance, IP is rate-limited/banned so all retries get 403/429, or DNS/network outage in the deployment environment lasting longer than the retry sequence.","solutions":["Unwrap with %w / errors.Unwrap to see the root lastErr before treating this as the cause.","Test the target URL directly with curl to determine if the outage is site-side or client-side.","Increase backoff duration between retries; rapid retries against a rate-limiter prolong the ban.","Add jitter and cap concurrency if many goroutines hammer the site simultaneously.","Configure a proxy or rotate exit IPs if the site blocks your datacenter IP range."],"exampleFix":"// before\nreturn nil, fmt.Errorf(\"重试 %d 次后仍然失败: %w\", maxRetries, lastErr)\n// after\nreturn nil, fmt.Errorf(\"重试 %d 次后仍然失败 (last: %v): %w\", maxRetries, time.Since(start).Round(time.Second), lastErr)","handlingStrategy":"retry","validationCode":"// preflight reachability check before invoking the plugin\nresp, err := http.Head(\"https://nsthwj.cn/\")\nif err != nil || resp.StatusCode != 200 { /* site unreachable — fix network first */ }","typeGuard":"null","tryCatchPattern":"results, err := p.Search(keyword)\nif err != nil {\n    if strings.Contains(err.Error(), \"仍然失败\") {\n        var root error\n        for e := err; e != nil; e = errors.Unwrap(e) { root = e }\n        log.Printf(\"retries exhausted, root: %v\", root)\n    }\n}","preventionTips":["Unwrap the aggregate error to see the real cause before reacting.","Add jittered exponential backoff so retries outlast transient outages.","Rotate proxies if a single IP is being rate-limited across all attempts.","Reduce concurrent goroutines hitting the same site."],"tags":["http","retry","go","plugin"],"backgroundTag":"api-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"}