JuliusBrussee/caveman · error · ErrDecompressedTooLarge

objectstore: decompressed payload exceeds limit

Error message

objectstore: decompressed payload exceeds limit

What it means

Error "objectstore: decompressed payload exceeds limit" thrown in JuliusBrussee/caveman.

Source

Thrown at shared/platform/objectstore/compress.go:26

	"io"

	"github.com/klauspost/compress/zstd"
)

// Compression names the supported codecs; they mirror the artifacts.compression
// CHECK constraint (none|gzip|zstd). An unknown codec fails closed.
const (
	CompressionNone = "none"
	CompressionGzip = "gzip"
	CompressionZstd = "zstd"
)

var (
	zstdEnc, _ = zstd.NewWriter(nil)

	// ErrDecompressedTooLarge is returned before a compressed payload can
	// expand beyond the caller's plaintext ceiling.
	ErrDecompressedTooLarge = errors.New("objectstore: decompressed payload exceeds limit")
)

// 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)
		}

View on GitHub (pinned to 27d5a3981a)

Solutions

1. Reduce the decompressed payload below the limit.

When it happens

Trigger: Thrown at shared/platform/objectstore/compress.go:26 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/2ab92b4d4c3d4200. Report an issue: GitHub.