JuliusBrussee/caveman · error

gzip close: %w

Error message

gzip close: %w

What it means

Error "gzip close: %w" thrown in JuliusBrussee/caveman.

Source

Thrown at shared/platform/objectstore/compress.go:46

// DefaultMaxDecompressedBytes protects callers that do not have trusted size
// metadata. Callers with an expected plaintext size should use
// DecompressLimit with the smaller, metadata-validated limit.
const DefaultMaxDecompressedBytes int64 = 128 << 20

// Compress encodes data with the named codec. "none" returns data unchanged.
func Compress(codec string, data []byte) ([]byte, error) {
	switch codec {
	case CompressionNone, "":
		return data, nil
	case CompressionGzip:
		var buf bytes.Buffer
		zw := gzip.NewWriter(&buf)
		if _, err := zw.Write(data); err != nil {
			return nil, fmt.Errorf("gzip: %w", err)
		}
		if err := zw.Close(); err != nil {
			return nil, fmt.Errorf("gzip close: %w", err)
		}
		return buf.Bytes(), nil
	case CompressionZstd:
		return zstdEnc.EncodeAll(data, nil), nil
	default:
		return nil, fmt.Errorf("unknown compression codec %q", codec)
	}
}

// Decompress reverses Compress with a defensive default expansion ceiling. An
// unknown codec fails closed.
func Decompress(codec string, data []byte) ([]byte, error) {
	return DecompressLimit(codec, data, DefaultMaxDecompressedBytes)
}

// DecompressLimit reverses Compress while refusing to produce more than
// maxBytes of plaintext. The limit is applied while decoding gzip and through
// zstd's decoder memory bound, so highly-compressible hostile payloads cannot

View on GitHub (pinned to 27d5a3981a)

Solutions

1. Fix the gzip close error and retry.

When it happens

Trigger: Thrown at shared/platform/objectstore/compress.go:46 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of JuliusBrussee/caveman@27d5a3981a (2026-08-15). Data as JSON: /api/errors/a5bd78fda21e9c29. Report an issue: GitHub.