Files
minio/cmd/xl-storage-format-v2_test.go
T
Feng Ruohang 86c5a92eef fix: keep scanner response resets local and strengthen regression tests
Keep the legacy header resets and clear the unused NSScanner response
field at each construction site. Remove the generic stream Recycler call:
Recycler transfers resource ownership and cannot be treated as a reset
hook followed by another insertion into the handler's pool.

Exercise the actual NSScanner handler across repeated scans with dirty
response allocations, so the regression test does not depend on sync.Pool
reusing an object. Check both response variants after wire serialization.
Cover legacy DecodeMsg and reused indexed metadata headers as well.

Retain the original contributor's commits and DCO sign-offs.

Signed-off-by: Feng Ruohang <rh@vonng.com>
2026-10-15 09:48:16 +08:00

1283 lines
41 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"bufio"
"bytes"
"compress/gzip"
"encoding/base64"
"encoding/binary"
"encoding/json"
"fmt"
"io"
"math/rand"
"os"
"reflect"
"sort"
"testing"
"time"
"github.com/google/uuid"
"github.com/klauspost/compress/zip"
"github.com/klauspost/compress/zstd"
"github.com/minio/minio/internal/bucket/lifecycle"
xhttp "github.com/minio/minio/internal/http"
"github.com/tinylib/msgp/msgp"
)
func TestReadXLMetaNoData(t *testing.T) {
f, err := os.Open("testdata/xl.meta-corrupt.gz")
if err != nil {
t.Fatal(err)
}
defer f.Close()
gz, err := gzip.NewReader(bufio.NewReader(f))
if err != nil {
t.Fatal(err)
}
buf, err := io.ReadAll(gz)
if err != nil {
t.Fatal(err)
}
_, err = readXLMetaNoData(bytes.NewReader(buf), int64(len(buf)))
if err == nil {
t.Fatal("expected error but returned success")
}
}
func TestXLV2FormatData(t *testing.T) {
failOnErr := func(err error) {
t.Helper()
if err != nil {
t.Fatal(err)
}
}
data := []byte("some object data")
data2 := []byte("some other object data")
xl := xlMetaV2{}
fi := FileInfo{
Volume: "volume",
Name: "object-name",
VersionID: "756100c6-b393-4981-928a-d49bbc164741",
IsLatest: true,
Deleted: false,
TransitionStatus: "",
DataDir: "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
XLV1: false,
ModTime: time.Now(),
Size: 0,
Mode: 0,
Metadata: nil,
Parts: nil,
Erasure: ErasureInfo{
Algorithm: ReedSolomon.String(),
DataBlocks: 4,
ParityBlocks: 2,
BlockSize: 10000,
Index: 1,
Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
Checksums: []ChecksumInfo{{
PartNumber: 1,
Algorithm: HighwayHash256S,
Hash: nil,
}},
},
MarkDeleted: false,
Data: data,
NumVersions: 1,
SuccessorModTime: time.Time{},
}
failOnErr(xl.AddVersion(fi))
fi.VersionID = mustGetUUID()
fi.DataDir = mustGetUUID()
fi.Data = data2
failOnErr(xl.AddVersion(fi))
serialized, err := xl.AppendTo(nil)
failOnErr(err)
// Roundtrip data
var xl2 xlMetaV2
failOnErr(xl2.Load(serialized))
// We should have one data entry
list, err := xl2.data.list()
failOnErr(err)
if len(list) != 2 {
t.Fatalf("want 1 entry, got %d", len(list))
}
if !bytes.Equal(xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"), data) {
t.Fatal("Find data returned", xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"))
}
if !bytes.Equal(xl2.data.find(fi.VersionID), data2) {
t.Fatal("Find data returned", xl2.data.find(fi.VersionID))
}
// Remove entry
xl2.data.remove(fi.VersionID)
failOnErr(xl2.data.validate())
if xl2.data.find(fi.VersionID) != nil {
t.Fatal("Data was not removed:", xl2.data.find(fi.VersionID))
}
if xl2.data.entries() != 1 {
t.Fatal("want 1 entry, got", xl2.data.entries())
}
// Re-add
xl2.data.replace(fi.VersionID, fi.Data)
failOnErr(xl2.data.validate())
if xl2.data.entries() != 2 {
t.Fatal("want 2 entries, got", xl2.data.entries())
}
// Replace entry
xl2.data.replace("756100c6-b393-4981-928a-d49bbc164741", data2)
failOnErr(xl2.data.validate())
if xl2.data.entries() != 2 {
t.Fatal("want 2 entries, got", xl2.data.entries())
}
if !bytes.Equal(xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"), data2) {
t.Fatal("Find data returned", xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"))
}
if !xl2.data.rename("756100c6-b393-4981-928a-d49bbc164741", "new-key") {
t.Fatal("old key was not found")
}
failOnErr(xl2.data.validate())
if !bytes.Equal(xl2.data.find("new-key"), data2) {
t.Fatal("Find data returned", xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"))
}
if xl2.data.entries() != 2 {
t.Fatal("want 2 entries, got", xl2.data.entries())
}
if !bytes.Equal(xl2.data.find(fi.VersionID), data2) {
t.Fatal("Find data returned", xl2.data.find(fi.DataDir))
}
// Test trimmed
xl2 = xlMetaV2{}
trimmed := xlMetaV2TrimData(serialized)
failOnErr(xl2.Load(trimmed))
if len(xl2.data) != 0 {
t.Fatal("data, was not trimmed, bytes left:", len(xl2.data))
}
// Corrupt metadata, last 5 bytes is the checksum, so go a bit further back.
trimmed[len(trimmed)-10] += 10
if err := xl2.Load(trimmed); err == nil {
t.Fatal("metadata corruption not detected")
}
}
// TestUsesDataDir tests xlMetaV2.UsesDataDir
func TestUsesDataDir(t *testing.T) {
vID := uuid.New()
dataDir := uuid.New()
transitioned := make(map[string][]byte)
transitioned[ReservedMetadataPrefixLower+TransitionStatus] = []byte(lifecycle.TransitionComplete)
toBeRestored := make(map[string]string)
toBeRestored[xhttp.AmzRestore] = ongoingRestoreObj().String()
restored := make(map[string]string)
restored[xhttp.AmzRestore] = completedRestoreObj(time.Now().UTC().Add(time.Hour)).String()
restoredExpired := make(map[string]string)
restoredExpired[xhttp.AmzRestore] = completedRestoreObj(time.Now().UTC().Add(-time.Hour)).String()
testCases := []struct {
xlmeta xlMetaV2Object
uses bool
}{
{ // transitioned object version
xlmeta: xlMetaV2Object{
VersionID: vID,
DataDir: dataDir,
MetaSys: transitioned,
},
uses: false,
},
{ // to be restored (requires object version to be transitioned)
xlmeta: xlMetaV2Object{
VersionID: vID,
DataDir: dataDir,
MetaSys: transitioned,
MetaUser: toBeRestored,
},
uses: false,
},
{ // restored object version (requires object version to be transitioned)
xlmeta: xlMetaV2Object{
VersionID: vID,
DataDir: dataDir,
MetaSys: transitioned,
MetaUser: restored,
},
uses: true,
},
{ // restored object version expired an hour back (requires object version to be transitioned)
xlmeta: xlMetaV2Object{
VersionID: vID,
DataDir: dataDir,
MetaSys: transitioned,
MetaUser: restoredExpired,
},
uses: false,
},
{ // object version with no ILM applied
xlmeta: xlMetaV2Object{
VersionID: vID,
DataDir: dataDir,
},
uses: true,
},
}
for i, tc := range testCases {
if got := tc.xlmeta.UsesDataDir(); got != tc.uses {
t.Fatalf("Test %d: Expected %v but got %v for %v", i+1, tc.uses, got, tc.xlmeta)
}
}
}
func TestDeleteVersionWithSharedDataDir(t *testing.T) {
failOnErr := func(i int, err error) {
t.Helper()
if err != nil {
t.Fatalf("Test %d: failed with %v", i, err)
}
}
data := []byte("some object data")
data2 := []byte("some other object data")
xl := xlMetaV2{}
fi := FileInfo{
Volume: "volume",
Name: "object-name",
VersionID: "756100c6-b393-4981-928a-d49bbc164741",
IsLatest: true,
Deleted: false,
TransitionStatus: "",
DataDir: "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
XLV1: false,
ModTime: time.Now(),
Size: 0,
Mode: 0,
Metadata: nil,
Parts: nil,
Erasure: ErasureInfo{
Algorithm: ReedSolomon.String(),
DataBlocks: 4,
ParityBlocks: 2,
BlockSize: 10000,
Index: 1,
Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
Checksums: []ChecksumInfo{{
PartNumber: 1,
Algorithm: HighwayHash256S,
Hash: nil,
}},
},
MarkDeleted: false,
Data: data,
NumVersions: 1,
SuccessorModTime: time.Time{},
}
d0, d1, d2 := mustGetUUID(), mustGetUUID(), mustGetUUID()
testCases := []struct {
versionID string
dataDir string
data []byte
shares int
transitionStatus string
restoreObjStatus string
expireRestored bool
expectedDataDir string
}{
{ // object versions with inlined data don't count towards shared data directory
versionID: mustGetUUID(),
dataDir: d0,
data: data,
shares: 0,
},
{ // object versions with inlined data don't count towards shared data directory
versionID: mustGetUUID(),
dataDir: d1,
data: data2,
shares: 0,
},
{ // transitioned object version don't count towards shared data directory
versionID: mustGetUUID(),
dataDir: d2,
shares: 3,
transitionStatus: lifecycle.TransitionComplete,
},
{ // transitioned object version with an ongoing restore-object request.
versionID: mustGetUUID(),
dataDir: d2,
shares: 3,
transitionStatus: lifecycle.TransitionComplete,
restoreObjStatus: ongoingRestoreObj().String(),
},
// The following versions are on-disk.
{ // restored object version expiring 10 hours from now.
versionID: mustGetUUID(),
dataDir: d2,
shares: 2,
transitionStatus: lifecycle.TransitionComplete,
restoreObjStatus: completedRestoreObj(time.Now().Add(10 * time.Hour)).String(),
expireRestored: true,
},
{
versionID: mustGetUUID(),
dataDir: d2,
shares: 2,
},
{
versionID: mustGetUUID(),
dataDir: d2,
shares: 2,
expectedDataDir: d2,
},
}
var fileInfos []FileInfo
for i, tc := range testCases {
fi := fi
fi.VersionID = tc.versionID
fi.DataDir = tc.dataDir
fi.Data = tc.data
if tc.data == nil {
fi.Size = 42 // to prevent inlining of data
}
if tc.restoreObjStatus != "" {
fi.Metadata = map[string]string{
xhttp.AmzRestore: tc.restoreObjStatus,
}
}
fi.TransitionStatus = tc.transitionStatus
fi.ModTime = fi.ModTime.Add(time.Duration(i) * time.Second)
failOnErr(i+1, xl.AddVersion(fi))
fi.ExpireRestored = tc.expireRestored
fileInfos = append(fileInfos, fi)
}
for i, tc := range testCases {
_, version, err := xl.findVersion(uuid.MustParse(tc.versionID))
failOnErr(i+1, err)
if got := xl.SharedDataDirCount(version.getVersionID(), version.ObjectV2.DataDir); got != tc.shares {
t.Fatalf("Test %d: For %#v, expected sharers of data directory %d got %d", i+1, version.ObjectV2.VersionID, tc.shares, got)
}
}
// Deleting fileInfos[4].VersionID, fileInfos[5].VersionID should return empty data dir; there are other object version sharing the data dir.
// Subsequently deleting fileInfos[6].versionID should return fileInfos[6].dataDir since there are no other object versions sharing this data dir.
count := len(testCases)
for i := 4; i < len(testCases); i++ {
tc := testCases[i]
dataDir, err := xl.DeleteVersion(fileInfos[i])
failOnErr(count+1, err)
if dataDir != tc.expectedDataDir {
t.Fatalf("Expected %s but got %s", tc.expectedDataDir, dataDir)
}
count++
}
}
func Benchmark_mergeXLV2Versions(b *testing.B) {
data, err := os.ReadFile("testdata/xl.meta-v1.2.zst")
if err != nil {
b.Fatal(err)
}
dec, _ := zstd.NewReader(nil)
data, err = dec.DecodeAll(data, nil)
if err != nil {
b.Fatal(err)
}
var xl xlMetaV2
if err = xl.LoadOrConvert(data); err != nil {
b.Fatal(err)
}
vers := make([][]xlMetaV2ShallowVersion, 16)
for i := range vers {
vers[i] = xl.versions
}
b.Run("requested-none", func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
b.SetBytes(855) // number of versions...
for b.Loop() {
mergeXLV2Versions(8, false, 0, vers...)
}
})
b.Run("requested-v1", func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
b.SetBytes(855) // number of versions...
for b.Loop() {
mergeXLV2Versions(8, false, 1, vers...)
}
})
b.Run("requested-v2", func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
b.SetBytes(855) // number of versions...
for b.Loop() {
mergeXLV2Versions(8, false, 1, vers...)
}
})
}
func Benchmark_xlMetaV2Shallow_Load(b *testing.B) {
data, err := os.ReadFile("testdata/xl.meta-v1.2.zst")
if err != nil {
b.Fatal(err)
}
dec, _ := zstd.NewReader(nil)
data, err = dec.DecodeAll(data, nil)
if err != nil {
b.Fatal(err)
}
b.Run("legacy", func(b *testing.B) {
var xl xlMetaV2
b.ReportAllocs()
b.ResetTimer()
b.SetBytes(855) // number of versions...
for b.Loop() {
err = xl.Load(data)
if err != nil {
b.Fatal(err)
}
}
})
b.Run("indexed", func(b *testing.B) {
var xl xlMetaV2
err = xl.Load(data)
if err != nil {
b.Fatal(err)
}
data, err := xl.AppendTo(nil)
if err != nil {
b.Fatal(err)
}
b.ReportAllocs()
b.ResetTimer()
b.SetBytes(855) // number of versions...
for b.Loop() {
err = xl.Load(data)
if err != nil {
b.Fatal(err)
}
}
})
}
func Test_xlMetaV2Shallow_Load(t *testing.T) {
// Load Legacy
data, err := os.ReadFile("testdata/xl.meta-v1.2.zst")
if err != nil {
t.Fatal(err)
}
dec, _ := zstd.NewReader(nil)
data, err = dec.DecodeAll(data, nil)
if err != nil {
t.Fatal(err)
}
test := func(t *testing.T, xl *xlMetaV2) {
if len(xl.versions) != 855 {
t.Errorf("want %d versions, got %d", 855, len(xl.versions))
}
xl.sortByModTime()
if !sort.SliceIsSorted(xl.versions, func(i, j int) bool {
return xl.versions[i].header.ModTime > xl.versions[j].header.ModTime
}) {
t.Errorf("Contents not sorted")
}
for i := range xl.versions {
hdr := xl.versions[i].header
ver, err := xl.getIdx(i)
if err != nil {
t.Error(err)
continue
}
gotHdr := ver.header()
if hdr != gotHdr {
t.Errorf("Header does not match, index: %+v != meta: %+v", hdr, gotHdr)
}
}
}
t.Run("load-legacy", func(t *testing.T) {
var xl xlMetaV2
err = xl.Load(data)
if err != nil {
t.Fatal(err)
}
test(t, &xl)
})
t.Run("roundtrip", func(t *testing.T) {
var xl xlMetaV2
err = xl.Load(data)
if err != nil {
t.Fatal(err)
}
data, err = xl.AppendTo(nil)
if err != nil {
t.Fatal(err)
}
xl = xlMetaV2{}
err = xl.Load(data)
if err != nil {
t.Fatal(err)
}
test(t, &xl)
})
t.Run("write-timestamp", func(t *testing.T) {
var xl xlMetaV2
err = xl.Load(data)
if err != nil {
t.Fatal(err)
}
ventry := xlMetaV2Version{
Type: DeleteType,
DeleteMarker: &xlMetaV2DeleteMarker{
VersionID: uuid.New(),
ModTime: time.Now().UnixNano(),
MetaSys: map[string][]byte{ReservedMetadataPrefixLower + ReplicationTimestamp: []byte("2022-10-27T15:40:53.195813291+08:00"), ReservedMetadataPrefixLower + ReplicaTimestamp: []byte("2022-10-27T15:40:53.195813291+08:00")},
},
WrittenByVersion: globalVersionUnix,
}
xl.data = nil
xl.versions = xl.versions[:2]
xl.addVersion(ventry)
data, err = xl.AppendTo(nil)
if err != nil {
t.Fatal(err)
}
// t.Logf("data := %#v\n", data)
})
// Test compressed index consistency fix
t.Run("comp-index", func(t *testing.T) {
// This file has a compressed index, due to https://github.com/minio/minio/pull/20575
// We ensure it is rewritten without an index.
// We compare this against the signature of the files stored without a version.
data, err := base64.StdEncoding.DecodeString(`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`)
if err != nil {
t.Fatal(err)
}
var xl xlMetaV2
err = xl.Load(data)
if err != nil {
t.Fatal(err)
}
for _, v := range xl.versions {
// Signature should match
if binary.BigEndian.Uint32(v.header.Signature[:]) != 0x8e5a6406 {
t.Log(v.header.String())
t.Fatalf("invalid signature 0x%x", binary.BigEndian.Uint32(v.header.Signature[:]))
}
}
})
}
func Test_xlMetaV2Shallow_LoadTimeStamp(t *testing.T) {
// v0 Saved with
// ReservedMetadataPrefixLower + ReplicationTimestamp: []byte("2022-10-27T15:40:53.195813291+08:00")
// ReservedMetadataPrefixLower + ReplicaTimestamp: []byte("2022-10-27T15:40:53.195813291+08:00")
data := []byte{0x58, 0x4c, 0x32, 0x20, 0x1, 0x0, 0x3, 0x0, 0xc6, 0x0, 0x0, 0x3, 0xe8, 0x2, 0x1, 0x3, 0xc4, 0x24, 0x95, 0xc4, 0x10, 0x6a, 0x33, 0x51, 0xe3, 0x48, 0x0, 0x4e, 0xed, 0xab, 0x9, 0x21, 0xeb, 0x83, 0x5a, 0xc6, 0x45, 0xd3, 0x17, 0x21, 0xe7, 0xa1, 0x98, 0x52, 0x88, 0xc, 0xc4, 0x4, 0xfe, 0x54, 0xbc, 0x2f, 0x2, 0x0, 0xc4, 0xd5, 0x83, 0xa4, 0x54, 0x79, 0x70, 0x65, 0x2, 0xa6, 0x44, 0x65, 0x6c, 0x4f, 0x62, 0x6a, 0x83, 0xa2, 0x49, 0x44, 0xc4, 0x10, 0x6a, 0x33, 0x51, 0xe3, 0x48, 0x0, 0x4e, 0xed, 0xab, 0x9, 0x21, 0xeb, 0x83, 0x5a, 0xc6, 0x45, 0xa5, 0x4d, 0x54, 0x69, 0x6d, 0x65, 0xd3, 0x17, 0x21, 0xe7, 0xa1, 0x98, 0x52, 0x88, 0xc, 0xa7, 0x4d, 0x65, 0x74, 0x61, 0x53, 0x79, 0x73, 0x82, 0xd9, 0x26, 0x78, 0x2d, 0x6d, 0x69, 0x6e, 0x69, 0x6f, 0x2d, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2d, 0x72, 0x65, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2d, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0xc4, 0x23, 0x32, 0x30, 0x32, 0x32, 0x2d, 0x31, 0x30, 0x2d, 0x32, 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0x91, 0xd9, 0xee, 0x2e, 0x1, 0x6, 0xc5, 0x1, 0x4b, 0x82, 0xa4, 0x54, 0x79, 0x70, 0x65, 0x1, 0xa5, 0x56, 0x32, 0x4f, 0x62, 0x6a, 0xde, 0x0, 0x11, 0xa2, 0x49, 0x44, 0xc4, 0x10, 0xe6, 0xb4, 0xa8, 0xe0, 0xc6, 0x3d, 0x40, 0x7a, 0x87, 0x61, 0xf2, 0x43, 0x41, 0xdf, 0xcb, 0x93, 0xa4, 0x44, 0x44, 0x69, 0x72, 0xc4, 0x10, 0xfd, 0x76, 0xe, 0x16, 0xfc, 0x17, 0x4d, 0x38, 0xbc, 0xac, 0x18, 0xde, 0x36, 0xae, 0xd7, 0x48, 0xa6, 0x45, 0x63, 0x41, 0x6c, 0x67, 0x6f, 0x1, 0xa3, 0x45, 0x63, 0x4d, 0x4, 0xa3, 0x45, 0x63, 0x4e, 0x4, 0xa7, 0x45, 0x63, 0x42, 0x53, 0x69, 0x7a, 0x65, 0xd2, 0x0, 0x10, 0x0, 0x0, 0xa7, 0x45, 0x63, 0x49, 0x6e, 0x64, 0x65, 0x78, 0x7, 0xa6, 0x45, 0x63, 0x44, 0x69, 0x73, 0x74, 0x98, 0x7, 0x8, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xa8, 0x43, 0x53, 0x75, 0x6d, 0x41, 0x6c, 0x67, 0x6f, 0x1, 0xa8, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x73, 0x91, 0x1, 0xa9, 0x50, 0x61, 0x72, 0x74, 0x45, 0x54, 0x61, 0x67, 0x73, 0x91, 0xa0, 0xa9, 0x50, 0x61, 0x72, 0x74, 0x53, 0x69, 0x7a, 0x65, 0x73, 0x91, 0xd1, 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0x61, 0x61, 0xce, 0x78, 0x57, 0x89, 0xc4}
var xl xlMetaV2
err := xl.Load(data)
if err != nil {
t.Fatal(err)
}
v0 := xl.versions[0]
// Saved with signature 0xfe, 0x54, 0xbc, 0x2f
// Signature must be converted after load.
wantSig := [4]byte{0x1e, 0x5f, 0xba, 0x4a}
if v0.header.Signature != wantSig {
t.Errorf("Wrong signature, want %#v, got %#v", wantSig, v0.header.Signature)
}
v, err := xl.getIdx(0)
if err != nil {
t.Fatal(err)
}
wantTimeStamp := "2022-10-27T07:40:53.195813291Z"
got := string(v.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicationTimestamp])
if wantTimeStamp != got {
t.Errorf("Wrong timestamp, want %v, got %v", wantTimeStamp, got)
}
got = string(v.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicaTimestamp])
if wantTimeStamp != got {
t.Errorf("Wrong timestamp, want %v, got %v", wantTimeStamp, got)
}
}
func Test_mergeXLV2Versions(t *testing.T) {
dataZ, err := os.ReadFile("testdata/xl-meta-consist.zip")
if err != nil {
t.Fatal(err)
}
var vers [][]xlMetaV2ShallowVersion
zr, err := zip.NewReader(bytes.NewReader(dataZ), int64(len(dataZ)))
if err != nil {
t.Fatal(err)
}
for _, file := range zr.File {
if file.UncompressedSize64 == 0 {
continue
}
in, err := file.Open()
if err != nil {
t.Fatal(err)
}
defer in.Close()
buf, err := io.ReadAll(in)
if err != nil {
t.Fatal(err)
}
var xl xlMetaV2
err = xl.LoadOrConvert(buf)
if err != nil {
t.Fatal(err)
}
vers = append(vers, xl.versions)
}
for _, v2 := range vers {
for _, ver := range v2 {
b, _ := json.Marshal(ver.header)
t.Log(string(b))
var x xlMetaV2Version
_, _ = x.unmarshalV(0, ver.meta)
b, _ = json.Marshal(x)
t.Log(string(b), x.getSignature())
}
}
for i := range vers {
t.Run(fmt.Sprintf("non-strict-q%d", i), func(t *testing.T) {
merged := mergeXLV2Versions(i, false, 0, vers...)
if len(merged) == 0 {
t.Error("Did not get any results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("strict-q%d", i), func(t *testing.T) {
merged := mergeXLV2Versions(i, true, 0, vers...)
if len(merged) == 0 {
t.Error("Did not get any results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("signature-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.Signature = [4]byte{byte(i + 10), 0, 0, 0}
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, false, 0, vMod...)
if len(merged) == 0 {
t.Error("Did not get any results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("modtime-q%d", i), func(t *testing.T) {
// Mutate modtime, but rest is consistent.
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.ModTime += int64(i)
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, false, 0, vMod...)
if len(merged) == 0 && i < 2 {
t.Error("Did not get any results")
return
}
if len(merged) > 0 && i >= 2 {
t.Error("Got unexpected results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("flags-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.Flags += xlFlags(i)
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, false, 0, vMod...)
if len(merged) == 0 {
t.Error("Did not get any results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("versionid-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.VersionID[0] += byte(i)
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, false, 0, vMod...)
if len(merged) == 0 && i < 2 {
t.Error("Did not get any results")
return
}
if len(merged) > 0 && i >= 2 {
t.Error("Got unexpected results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("strict-signature-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.Signature = [4]byte{byte(i + 10), 0, 0, 0}
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, true, 0, vMod...)
if len(merged) == 0 && i < 2 {
t.Error("Did not get any results")
return
}
if len(merged) > 0 && i >= 2 {
t.Error("Got unexpected results")
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("strict-modtime-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.ModTime += int64(i + 10)
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, true, 0, vMod...)
if len(merged) == 0 && i < 2 {
t.Error("Did not get any results")
return
}
if len(merged) > 0 && i >= 2 {
t.Error("Got unexpected results", len(merged), merged[0].header)
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("strict-flags-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.Flags += xlFlags(i + 10)
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, true, 0, vMod...)
if len(merged) == 0 && i < 2 {
t.Error("Did not get any results")
return
}
if len(merged) > 0 && i >= 2 {
t.Error("Got unexpected results", len(merged))
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
t.Run(fmt.Sprintf("strict-type-q%d", i), func(t *testing.T) {
// Mutate signature, non strict
vMod := make([][]xlMetaV2ShallowVersion, 0, len(vers))
for i, ver := range vers {
newVers := make([]xlMetaV2ShallowVersion, 0, len(ver))
for _, v := range ver {
v.header.Type += VersionType(i + 10)
newVers = append(newVers, v)
}
vMod = append(vMod, newVers)
}
merged := mergeXLV2Versions(i, true, 0, vMod...)
if len(merged) == 0 && i < 2 {
t.Error("Did not get any results")
return
}
if len(merged) > 0 && i >= 2 {
t.Error("Got unexpected results", len(merged))
return
}
for _, ver := range merged {
if ver.header.Type == invalidVersionType {
t.Errorf("Invalid result returned: %v", ver.header)
}
}
})
}
}
func Test_mergeXLV2Versions2(t *testing.T) {
vDelMarker := xlMetaV2ShallowVersion{header: xlMetaV2VersionHeader{
VersionID: [16]byte{2},
ModTime: 1500,
Signature: [4]byte{5, 6, 7, 8},
Type: DeleteType,
Flags: 0,
}}
vDelMarker.meta, _ = base64.StdEncoding.DecodeString("gqRUeXBlAqZEZWxPYmqDoklExBCvwGEaY+BAO4B4vyG5ERorpU1UaW1l0xbgJlsWE9IHp01ldGFTeXOA")
vObj := xlMetaV2ShallowVersion{header: xlMetaV2VersionHeader{
VersionID: [16]byte{1},
ModTime: 1000,
Signature: [4]byte{1, 2, 3, 4},
Type: ObjectType,
Flags: xlFlagUsesDataDir | xlFlagInlineData,
}}
vObj.meta, _ = base64.StdEncoding.DecodeString("gqRUeXBlAaVWMk9iat4AEaJJRMQQEkaOteYCSrWB3nqppSIKTqRERGlyxBAO8fXSJ5RI+YEtsp8KneVVpkVjQWxnbwGjRWNNDKNFY04Ep0VjQlNpemXSABAAAKdFY0luZGV4BaZFY0Rpc3TcABAFBgcICQoLDA0ODxABAgMEqENTdW1BbGdvAahQYXJ0TnVtc5EBqVBhcnRFVGFnc8CpUGFydFNpemVzkdEBL6pQYXJ0QVNpemVzkdEBL6RTaXpl0QEvpU1UaW1l0xbgJhIa6ABvp01ldGFTeXOBvHgtbWluaW8taW50ZXJuYWwtaW5saW5lLWRhdGHEBHRydWWnTWV0YVVzcoKsY29udGVudC10eXBluGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbaRldGFn2SBlYTIxMDE2MmVlYjRhZGMzMWZmOTg0Y2I3NDRkNmFmNg==")
testCases := []struct {
name string
input [][]xlMetaV2ShallowVersion
quorum int
reqVersions int
want []xlMetaV2ShallowVersion
}{
{
name: "obj-on-one",
input: [][]xlMetaV2ShallowVersion{
0: {vDelMarker, vObj}, // disk 0
1: {vDelMarker}, // disk 1
2: {vDelMarker}, // disk 2
},
quorum: 2,
reqVersions: 0,
want: []xlMetaV2ShallowVersion{vDelMarker},
},
{
name: "obj-on-two",
input: [][]xlMetaV2ShallowVersion{
0: {vDelMarker, vObj}, // disk 0
1: {vDelMarker, vObj}, // disk 1
2: {vDelMarker}, // disk 2
},
quorum: 2,
reqVersions: 0,
want: []xlMetaV2ShallowVersion{vDelMarker, vObj},
},
{
name: "obj-on-all",
input: [][]xlMetaV2ShallowVersion{
0: {vDelMarker, vObj}, // disk 0
1: {vDelMarker, vObj}, // disk 1
2: {vDelMarker, vObj}, // disk 2
},
quorum: 2,
reqVersions: 0,
want: []xlMetaV2ShallowVersion{vDelMarker, vObj},
},
{
name: "del-on-one",
input: [][]xlMetaV2ShallowVersion{
0: {vDelMarker, vObj}, // disk 0
1: {vObj}, // disk 1
2: {vObj}, // disk 2
},
quorum: 2,
reqVersions: 0,
want: []xlMetaV2ShallowVersion{vObj},
},
{
name: "del-on-two",
input: [][]xlMetaV2ShallowVersion{
0: {vDelMarker, vObj}, // disk 0
1: {vDelMarker, vObj}, // disk 1
2: {vObj}, // disk 2
},
quorum: 2,
reqVersions: 0,
want: []xlMetaV2ShallowVersion{vDelMarker, vObj},
},
{
name: "del-on-two-16stripe",
input: [][]xlMetaV2ShallowVersion{
0: {vObj}, // disk 0
1: {vDelMarker, vObj}, // disk 1
2: {vDelMarker, vObj}, // disk 2
3: {vDelMarker, vObj}, // disk 3
4: {vDelMarker, vObj}, // disk 4
5: {vDelMarker, vObj}, // disk 5
6: {vDelMarker, vObj}, // disk 6
7: {vDelMarker, vObj}, // disk 7
8: {vDelMarker, vObj}, // disk 8
9: {vDelMarker, vObj}, // disk 9
10: {vObj}, // disk 10
11: {vDelMarker, vObj}, // disk 11
12: {vDelMarker, vObj}, // disk 12
13: {vDelMarker, vObj}, // disk 13
14: {vDelMarker, vObj}, // disk 14
15: {vDelMarker, vObj}, // disk 15
},
quorum: 7,
reqVersions: 0,
want: []xlMetaV2ShallowVersion{vDelMarker, vObj},
},
}
for _, test := range testCases {
t.Run(test.name, func(t *testing.T) {
// Run multiple times, shuffling the input order.
for i := range int64(50) {
t.Run(fmt.Sprint(i), func(t *testing.T) {
rng := rand.New(rand.NewSource(i))
rng.Shuffle(len(test.input), func(i, j int) {
test.input[i], test.input[j] = test.input[j], test.input[i]
})
got := mergeXLV2Versions(test.quorum, true, 0, test.input...)
if !reflect.DeepEqual(test.want, got) {
t.Errorf("want %v != got %v", test.want, got)
}
})
}
})
}
}
func Test_mergeEntryChannels(t *testing.T) {
dataZ, err := os.ReadFile("testdata/xl-meta-merge.zip")
if err != nil {
t.Fatal(err)
}
var vers []metaCacheEntry
zr, err := zip.NewReader(bytes.NewReader(dataZ), int64(len(dataZ)))
if err != nil {
t.Fatal(err)
}
for _, file := range zr.File {
if file.UncompressedSize64 == 0 {
continue
}
in, err := file.Open()
if err != nil {
t.Fatal(err)
}
defer in.Close()
buf, err := io.ReadAll(in)
if err != nil {
t.Fatal(err)
}
buf = xlMetaV2TrimData(buf)
vers = append(vers, metaCacheEntry{
name: "a",
metadata: buf,
})
}
// Shuffle...
for i := range 100 {
rng := rand.New(rand.NewSource(int64(i)))
rng.Shuffle(len(vers), func(i, j int) {
vers[i], vers[j] = vers[j], vers[i]
})
var entries []chan metaCacheEntry
for _, v := range vers {
v.cached = nil
ch := make(chan metaCacheEntry, 1)
ch <- v
close(ch)
entries = append(entries, ch)
}
out := make(chan metaCacheEntry, 1)
err := mergeEntryChannels(t.Context(), entries, out, 1)
if err != nil {
t.Fatal(err)
}
got, ok := <-out
if !ok {
t.Fatal("Got no result")
}
xl, err := got.xlmeta()
if err != nil {
t.Fatal(err)
}
if len(xl.versions) != 3 {
t.Fatal("Got wrong number of versions, want 3, got", len(xl.versions))
}
if !sort.SliceIsSorted(xl.versions, func(i, j int) bool {
return xl.versions[i].header.sortsBefore(xl.versions[j].header)
}) {
t.Errorf("Got unsorted result")
}
}
}
func TestXMinIOHealingSkip(t *testing.T) {
xl := xlMetaV2{}
failOnErr := func(err error) {
t.Helper()
if err != nil {
t.Fatalf("Test failed with %v", err)
}
}
fi := FileInfo{
Volume: "volume",
Name: "object-name",
VersionID: "756100c6-b393-4981-928a-d49bbc164741",
IsLatest: true,
Deleted: false,
ModTime: time.Now(),
Size: 1 << 10,
Mode: 0,
Erasure: ErasureInfo{
Algorithm: ReedSolomon.String(),
DataBlocks: 4,
ParityBlocks: 2,
BlockSize: 10000,
Index: 1,
Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
Checksums: []ChecksumInfo{{
PartNumber: 1,
Algorithm: HighwayHash256S,
Hash: nil,
}},
},
NumVersions: 1,
}
fi.SetHealing()
failOnErr(xl.AddVersion(fi))
var err error
fi, err = xl.ToFileInfo(fi.Volume, fi.Name, fi.VersionID, false, true)
if err != nil {
t.Fatalf("xl.ToFileInfo failed with %v", err)
}
if fi.Healing() {
t.Fatal("Expected fi.Healing to be false")
}
}
func benchmarkManyPartsOptionally(b *testing.B, allParts bool) {
f, err := os.Open("testdata/xl-many-parts.meta")
if err != nil {
b.Fatal(err)
}
defer f.Close()
data, err := io.ReadAll(f)
if err != nil {
b.Fatal(err)
}
buf, _, _ := isIndexedMetaV2(data)
if buf == nil {
b.Fatal("buf == nil")
}
b.Run("ToFileInfo", func(b *testing.B) {
b.ResetTimer()
b.ReportAllocs()
for b.Loop() {
_, err = buf.ToFileInfo("volume", "path", "", allParts)
if err != nil {
b.Fatal(err)
}
}
})
}
func BenchmarkToFileInfoNoParts(b *testing.B) {
benchmarkManyPartsOptionally(b, false)
}
func BenchmarkToFileInfoWithParts(b *testing.B) {
benchmarkManyPartsOptionally(b, true)
}
// TestXLMetaV2HeaderLegacyUnmarshalResetsEc checks that decoding legacy
// version headers, which carry no erasure metadata fields, cannot leak
// stale EcN/EcM values from a previously decoded object into the same
// structure.
func TestXLMetaV2HeaderLegacyUnmarshalResetsEc(t *testing.T) {
base := xlMetaV2VersionHeader{
VersionID: [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16},
ModTime: time.Now().Unix(),
Signature: [4]byte{1, 2, 3, 4},
Type: ObjectType,
Flags: xlFlagInlineData,
}
// Legacy V2 header wire format: 5 fields, no EcN/EcM.
var legacy []byte
legacy = msgp.AppendArrayHeader(legacy, 5)
legacy = msgp.AppendBytes(legacy, base.VersionID[:])
legacy = msgp.AppendInt64(legacy, base.ModTime)
legacy = msgp.AppendBytes(legacy, base.Signature[:])
legacy = msgp.AppendUint8(legacy, uint8(base.Type))
legacy = msgp.AppendUint8(legacy, uint8(base.Flags))
for _, decoder := range []string{"UnmarshalMsg", "DecodeMsg", "loadIndexed"} {
t.Run(decoder, func(t *testing.T) {
header := base
header.EcN, header.EcM = 4, 8
x2 := xlMetaV2VersionHeaderV2{xlMetaV2VersionHeader: &header}
var err error
switch decoder {
case "UnmarshalMsg":
_, err = x2.UnmarshalMsg(legacy)
case "DecodeMsg":
err = x2.DecodeMsg(msgp.NewReader(bytes.NewReader(legacy)))
case "loadIndexed":
indexed := msgp.AppendUint(nil, 2)
indexed = msgp.AppendUint(indexed, xlMetaVersion)
indexed = msgp.AppendInt(indexed, 1)
indexed = msgp.AppendBytes(indexed, legacy)
indexed = msgp.AppendBytes(indexed, nil)
xl := xlMetaV2{versions: []xlMetaV2ShallowVersion{{header: header}}}
err = xl.loadIndexed(indexed, nil)
header = xl.versions[0].header
}
if err != nil {
t.Fatal(err)
}
if header != base {
t.Fatalf("legacy header: got %+v, want %+v", header, base)
}
})
}
// V1 headers (4 fields, never released) must zero the fields too.
var v1 []byte
v1 = msgp.AppendArrayHeader(v1, 4)
v1 = msgp.AppendBytes(v1, base.VersionID[:])
v1 = msgp.AppendInt64(v1, base.ModTime)
v1 = msgp.AppendUint8(v1, uint8(base.Type))
v1 = msgp.AppendUint8(v1, uint8(base.Flags))
header := base
header.EcN, header.EcM = 4, 8
header.Signature = [4]byte{9, 9, 9, 9}
if _, err := header.unmarshalV1(v1); err != nil {
t.Fatalf("legacy V1 header unmarshal failed: %v", err)
}
if header.EcN != 0 || header.EcM != 0 {
t.Fatalf("stale erasure metadata leaked on V1 decode: EcN %d, EcM %d", header.EcN, header.EcM)
}
if header.Signature != ([4]byte{}) {
t.Fatalf("stale signature leaked on V1 decode: %v", header.Signature)
}
// Current headers must keep their erasure metadata.
current := base
current.EcN, current.EcM = 4, 8
wire, err := current.MarshalMsg(nil)
if err != nil {
t.Fatalf("header marshal failed: %v", err)
}
decoded := base
if _, err := decoded.UnmarshalMsg(wire); err != nil {
t.Fatalf("header unmarshal failed: %v", err)
}
if decoded.EcN != 4 || decoded.EcM != 8 {
t.Fatalf("erasure metadata lost on current decode: EcN %d, EcM %d", decoded.EcN, decoded.EcM)
}
}