{"record":{"id":"1bcbf9c9a6d0d671","repo":"Tencent/WeKnora","slug":"failed-to-copy-file-in-ks3-w","errorCode":null,"errorMessage":"failed to copy file in KS3: %w","messagePattern":"failed to copy file in KS3: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/application/service/file/ks3.go","lineNumber":209,"sourceCode":"\tsrcBucket, srcKey, err := parseKS3FilePath(srcPath)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"ks3 copy rejected source %q: %w\", srcPath, ErrCrossBackendCopy)\n\t}\n\tif err := utils.SafeObjectKey(srcKey); err != nil {\n\t\treturn \"\", fmt.Errorf(\"invalid source path: %w\", err)\n\t}\n\n\text := filepath.Ext(srcPath)\n\tdestKey := joinKS3Key(s.pathPrefix, fmt.Sprintf(\"%d\", tenantID), knowledgeID, uuid.New().String()+ext)\n\n\t_, err = s.client.CopyObject(&ks3s3.CopyObjectInput{\n\t\tBucket:       ks3aws.String(s.bucketName),\n\t\tKey:          ks3aws.String(destKey),\n\t\tSourceBucket: ks3aws.String(srcBucket),\n\t\tSourceKey:    ks3aws.String(srcKey),\n\t})\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"failed to copy file in KS3: %w\", err)\n\t}\n\n\tnewPath := fmt.Sprintf(\"%s%s/%s\", ks3Scheme, s.bucketName, destKey)\n\tlogger.Infof(ctx, \"Copied KS3 object %s to %s\", srcPath, newPath)\n\treturn newPath, nil\n}\n\nfunc (s *ks3FileService) GetFile(ctx context.Context, filePath string) (io.ReadCloser, error) {\n\t_, objectKey, err := parseKS3FilePath(filePath)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\tif err := utils.SafeObjectKey(objectKey); err != nil {\n\t\treturn nil, fmt.Errorf(\"invalid file path: %w\", err)\n\t}\n\n\tresp, err := s.client.GetObject(&ks3s3.GetObjectInput{\n\t\tBucket: ks3aws.String(s.bucketName),","sourceCodeStart":191,"sourceCodeEnd":227,"githubUrl":"https://github.com/Tencent/WeKnora/blob/988cbb03305e055d8ebb7d46d9ac6cc0803cd074/internal/application/service/file/ks3.go#L191-L227","documentation":"KS3 server-side CopyObject failed while duplicating an object into the knowledge-owned destination key, meaning the new object was not created; credentials, bucket permissions, or source-object availability are the usual causes and the copy is surfaced as failed.","triggerScenarios":"Thrown at internal/application/service/file/ks3.go:209 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check KS3 credentials and bucket copy permissions","Verify the source object still exists","Retry the copy on transient S3-compatible errors"],"exampleFix":null,"handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"988cbb03305e055d8ebb7d46d9ac6cc0803cd074","analyzedAt":"2026-09-02T14:41:08.344Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}