{"record":{"id":"df6473b7b1652726","repo":"hyperledger/fabric","slug":"failed-to-write-the-entire-content-of-the-file-ex","errorCode":null,"errorMessage":"failed to write the entire content of the file, expected %d, wrote %d","messagePattern":"failed to write the entire content of the file, expected (.+?), wrote (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"core/chaincode/persistence/persistence.go","lineNumber":56,"sourceCode":"// FilesystemIO is the production implementation of the IOWriter interface\ntype FilesystemIO struct{}\n\n// WriteFile writes a file to the filesystem; it does so atomically\n// by first writing to a temp file and then renaming the file so that\n// if the operation crashes midway we're not stuck with a bad package\nfunc (f *FilesystemIO) WriteFile(path, name string, data []byte) error {\n\tif path == \"\" {\n\t\treturn errors.New(\"empty path not allowed\")\n\t}\n\ttmpFile, err := os.CreateTemp(path, \".ccpackage.\")\n\tif err != nil {\n\t\treturn errors.Wrapf(err, \"error creating temp file in directory '%s'\", path)\n\t}\n\tdefer os.Remove(tmpFile.Name())\n\n\tif n, err := tmpFile.Write(data); err != nil || n != len(data) {\n\t\tif err == nil {\n\t\t\terr = errors.Errorf(\n\t\t\t\t\"failed to write the entire content of the file, expected %d, wrote %d\",\n\t\t\t\tlen(data), n,\n\t\t\t)\n\t\t}\n\t\treturn errors.Wrapf(err, \"error writing to temp file '%s'\", tmpFile.Name())\n\t}\n\n\tif err := tmpFile.Close(); err != nil {\n\t\treturn errors.Wrapf(err, \"error closing temp file '%s'\", tmpFile.Name())\n\t}\n\n\tif err := os.Rename(tmpFile.Name(), filepath.Join(path, name)); err != nil {\n\t\treturn errors.Wrapf(err, \"error renaming temp file '%s'\", tmpFile.Name())\n\t}\n\n\treturn nil\n}\n","sourceCodeStart":38,"sourceCodeEnd":74,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/core/chaincode/persistence/persistence.go#L38-L74","documentation":"After creating the temp file, WriteFile writes the full data buffer and verifies that the number of bytes written equals len(data). If the write returns no error but fewer bytes than expected, this error is produced and then wrapped with 'error writing to temp file'.","triggerScenarios":"tmpFile.Write(data) completes with err == nil but n < len(data), typically due to hitting a disk quota or space limit mid-write on the filesystem holding the package directory.","commonSituations":"Disk quota exceeded on the peer's storage volume; very large chaincode package truncated by an underlying storage limit; rare kernel/filesystem short-write conditions.","solutions":["Check disk space and quotas on the volume backing the chaincode install directory and free space if needed","Retry the chaincode install after resolving storage constraints","Log the wrapped error's message — it includes expected vs written byte counts — to size the problem"],"exampleFix":null,"handlingStrategy":"retry","validationCode":"if err := ensureDiskSpace(path, uint64(len(data))+1<<20); err != nil {\n    return fmt.Errorf(\"insufficient space for package write: %w\", err)\n}","typeGuard":null,"tryCatchPattern":"err := io.WriteFile(path, name, data)\nif err != nil && strings.Contains(err.Error(), \"failed to write the entire content\") {\n    time.Sleep(retryDelay)\n    err = io.WriteFile(path, name, data) // retry once after freeing/checking space\n}","preventionTips":["Set disk-space alerts well below the volume capacity","Account for package size limits before installing large chaincodes","Check storage quotas in containerized deployments (ephemeral-storage limits)"],"tags":["filesystem","io","disk-full"],"backgroundTag":"disk-full","analyzedSha":"2736b63f8fd5932511d56fe68b7039d15977f7f6","analyzedAt":"2026-09-04T08:52:36.465Z","contentChangedAt":"2026-09-04T08:52:36.465Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}