minio/cmd/xl-v1-object_test.go
Anis Elleuch db2155551a
heal: Pass scan mode to HealObjects to deep scan full quorum objects (#9159)
As an optimization of the healing, HealObjects() avoid sending an
object to the background healing subsystem when the object is
present in all disks.

However, HealObjects() should have checked the scan type, if this
deep, always pass the object to the healing subsystem.
2020-03-18 17:50:00 -07:00

636 lines
19 KiB
Go

/*
* MinIO Cloud Storage, (C) 2016 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bytes"
"context"
"io/ioutil"
"math/rand"
"os"
"path"
"reflect"
"testing"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/minio/minio/cmd/config/storageclass"
"github.com/minio/minio/pkg/madmin"
)
func TestRepeatPutObjectPart(t *testing.T) {
var objLayer ObjectLayer
var disks []string
var err error
var opts ObjectOptions
objLayer, disks, err = prepareXL16()
if err != nil {
t.Fatal(err)
}
// cleaning up of temporary test directories
defer removeRoots(disks)
err = objLayer.MakeBucketWithLocation(context.Background(), "bucket1", "")
if err != nil {
t.Fatal(err)
}
uploadID, err := objLayer.NewMultipartUpload(context.Background(), "bucket1", "mpartObj1", opts)
if err != nil {
t.Fatal(err)
}
fiveMBBytes := bytes.Repeat([]byte("a"), 5*humanize.MiByte)
md5Hex := getMD5Hash(fiveMBBytes)
_, err = objLayer.PutObjectPart(context.Background(), "bucket1", "mpartObj1", uploadID, 1, mustGetPutObjReader(t, bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""), opts)
if err != nil {
t.Fatal(err)
}
// PutObjectPart should succeed even if part already exists. ref: https://github.com/minio/minio/issues/1930
_, err = objLayer.PutObjectPart(context.Background(), "bucket1", "mpartObj1", uploadID, 1, mustGetPutObjReader(t, bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""), opts)
if err != nil {
t.Fatal(err)
}
}
func TestXLDeleteObjectBasic(t *testing.T) {
testCases := []struct {
bucket string
object string
expectedErr error
}{
{".test", "dir/obj", BucketNameInvalid{Bucket: ".test"}},
{"----", "dir/obj", BucketNameInvalid{Bucket: "----"}},
{"bucket", "", ObjectNameInvalid{Bucket: "bucket", Object: ""}},
{"bucket", "doesnotexist", ObjectNotFound{Bucket: "bucket", Object: "doesnotexist"}},
{"bucket", "dir/doesnotexist", ObjectNotFound{Bucket: "bucket", Object: "dir/doesnotexist"}},
{"bucket", "dir", ObjectNotFound{Bucket: "bucket", Object: "dir"}},
{"bucket", "dir/", ObjectNotFound{Bucket: "bucket", Object: "dir/"}},
{"bucket", "dir/obj", nil},
}
// Create an instance of xl backend
xl, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
err = xl.MakeBucketWithLocation(context.Background(), "bucket", "")
if err != nil {
t.Fatal(err)
}
// Create object "dir/obj" under bucket "bucket" for Test 7 to pass
_, err = xl.PutObject(context.Background(), "bucket", "dir/obj", mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), ObjectOptions{})
if err != nil {
t.Fatalf("XL Object upload failed: <ERROR> %s", err)
}
for i, test := range testCases {
actualErr := xl.DeleteObject(context.Background(), test.bucket, test.object)
if test.expectedErr != nil && actualErr != test.expectedErr {
t.Errorf("Test %d: Expected to fail with %s, but failed with %s", i+1, test.expectedErr, actualErr)
}
if test.expectedErr == nil && actualErr != nil {
t.Errorf("Test %d: Expected to pass, but failed with %s", i+1, actualErr)
}
}
// Cleanup backend directories
removeRoots(fsDirs)
}
func TestXLDeleteObjectsXLSet(t *testing.T) {
var objs []*xlObjects
for i := 0; i < 32; i++ {
obj, fsDirs, err := prepareXL(16)
if err != nil {
t.Fatal("Unable to initialize 'XL' object layer.", err)
}
// Remove all dirs.
for _, dir := range fsDirs {
defer os.RemoveAll(dir)
}
z := obj.(*xlZones)
xl := z.zones[0].sets[0]
objs = append(objs, xl)
}
xlSets := &xlSets{sets: objs, distributionAlgo: "CRCMOD"}
type testCaseType struct {
bucket string
object string
}
bucketName := "bucket"
testCases := []testCaseType{
{bucketName, "dir/obj1"},
{bucketName, "dir/obj2"},
{bucketName, "obj3"},
{bucketName, "obj_4"},
}
err := xlSets.MakeBucketWithLocation(context.Background(), bucketName, "")
if err != nil {
t.Fatal(err)
}
for _, testCase := range testCases {
_, err = xlSets.PutObject(context.Background(), testCase.bucket, testCase.object,
mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), ObjectOptions{})
if err != nil {
t.Fatalf("XL Object upload failed: <ERROR> %s", err)
}
}
toObjectNames := func(testCases []testCaseType) []string {
names := make([]string, len(testCases))
for i := range testCases {
names[i] = testCases[i].object
}
return names
}
objectNames := toObjectNames(testCases)
delErrs, err := xlSets.DeleteObjects(context.Background(), bucketName, objectNames)
if err != nil {
t.Errorf("Failed to call DeleteObjects with the error: `%v`", err)
}
for i := range delErrs {
if delErrs[i] != nil {
t.Errorf("Failed to remove object `%v` with the error: `%v`", objectNames[i], delErrs[i])
}
}
for _, test := range testCases {
_, statErr := xlSets.GetObjectInfo(context.Background(), test.bucket, test.object, ObjectOptions{})
switch statErr.(type) {
case ObjectNotFound:
default:
t.Fatalf("Object %s is not removed", test.bucket+SlashSeparator+test.object)
}
}
}
func TestXLDeleteObjectDiskNotFound(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
// Cleanup backend directories
defer removeRoots(fsDirs)
z := obj.(*xlZones)
xl := z.zones[0].sets[0]
// Create "bucket"
err = obj.MakeBucketWithLocation(context.Background(), "bucket", "")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
opts := ObjectOptions{}
// Create object "obj" under bucket "bucket".
_, err = obj.PutObject(context.Background(), bucket, object, mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), opts)
if err != nil {
t.Fatal(err)
}
// for a 16 disk setup, quorum is 9. To simulate disks not found yet
// quorum is available, we remove disks leaving quorum disks behind.
xlDisks := xl.getDisks()
z.zones[0].xlDisksMu.Lock()
xl.getDisks = func() []StorageAPI {
for i := range xlDisks[:7] {
xlDisks[i] = newNaughtyDisk(xlDisks[i], nil, errFaultyDisk)
}
return xlDisks
}
z.zones[0].xlDisksMu.Unlock()
err = obj.DeleteObject(context.Background(), bucket, object)
if err != nil {
t.Fatal(err)
}
// Create "obj" under "bucket".
_, err = obj.PutObject(context.Background(), bucket, object, mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), opts)
if err != nil {
t.Fatal(err)
}
// Remove one more disk to 'lose' quorum, by setting it to nil.
xlDisks = xl.getDisks()
z.zones[0].xlDisksMu.Lock()
xl.getDisks = func() []StorageAPI {
xlDisks[7] = nil
xlDisks[8] = nil
return xlDisks
}
z.zones[0].xlDisksMu.Unlock()
err = obj.DeleteObject(context.Background(), bucket, object)
// since majority of disks are not available, metaquorum is not achieved and hence errXLReadQuorum error
if err != toObjectErr(errXLReadQuorum, bucket, object) {
t.Errorf("Expected deleteObject to fail with %v, but failed with %v", toObjectErr(errXLReadQuorum, bucket, object), err)
}
}
func TestGetObjectNoQuorum(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
// Cleanup backend directories.
defer removeRoots(fsDirs)
z := obj.(*xlZones)
xl := z.zones[0].sets[0]
// Create "bucket"
err = obj.MakeBucketWithLocation(context.Background(), "bucket", "")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
opts := ObjectOptions{}
// Create "object" under "bucket".
_, err = obj.PutObject(context.Background(), bucket, object, mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), opts)
if err != nil {
t.Fatal(err)
}
// Make 9 disks offline, which leaves less than quorum number of disks
// in a 16 disk XL setup. The original disks are 'replaced' with
// naughtyDisks that fail after 'f' successful StorageAPI method
// invocations, where f - [0,2)
for f := 0; f < 2; f++ {
diskErrors := make(map[int]error)
for i := 0; i <= f; i++ {
diskErrors[i] = nil
}
xlDisks := xl.getDisks()
for i := range xlDisks[:9] {
switch diskType := xlDisks[i].(type) {
case *naughtyDisk:
xlDisks[i] = newNaughtyDisk(diskType.disk, diskErrors, errFaultyDisk)
default:
xlDisks[i] = newNaughtyDisk(xlDisks[i], diskErrors, errFaultyDisk)
}
}
z.zones[0].xlDisksMu.Lock()
xl.getDisks = func() []StorageAPI {
return xlDisks
}
z.zones[0].xlDisksMu.Unlock()
// Fetch object from store.
err = xl.GetObject(context.Background(), bucket, object, 0, int64(len("abcd")), ioutil.Discard, "", opts)
if err != toObjectErr(errXLReadQuorum, bucket, object) {
t.Errorf("Expected putObject to fail with %v, but failed with %v", toObjectErr(errXLWriteQuorum, bucket, object), err)
}
}
}
func TestPutObjectNoQuorum(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
// Cleanup backend directories.
defer removeRoots(fsDirs)
z := obj.(*xlZones)
xl := z.zones[0].sets[0]
// Create "bucket"
err = obj.MakeBucketWithLocation(context.Background(), "bucket", "")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
opts := ObjectOptions{}
// Create "object" under "bucket".
_, err = obj.PutObject(context.Background(), bucket, object, mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), opts)
if err != nil {
t.Fatal(err)
}
// Make 9 disks offline, which leaves less than quorum number of disks
// in a 16 disk XL setup. The original disks are 'replaced' with
// naughtyDisks that fail after 'f' successful StorageAPI method
// invocations, where f - [0,3)
for f := 0; f < 3; f++ {
diskErrors := make(map[int]error)
for i := 0; i <= f; i++ {
diskErrors[i] = nil
}
xlDisks := xl.getDisks()
for i := range xlDisks[:9] {
switch diskType := xlDisks[i].(type) {
case *naughtyDisk:
xlDisks[i] = newNaughtyDisk(diskType.disk, diskErrors, errFaultyDisk)
default:
xlDisks[i] = newNaughtyDisk(xlDisks[i], diskErrors, errFaultyDisk)
}
}
z.zones[0].xlDisksMu.Lock()
xl.getDisks = func() []StorageAPI {
return xlDisks
}
z.zones[0].xlDisksMu.Unlock()
// Upload new content to same object "object"
_, err = obj.PutObject(context.Background(), bucket, object, mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), opts)
if err != toObjectErr(errXLWriteQuorum, bucket, object) {
t.Errorf("Expected putObject to fail with %v, but failed with %v", toObjectErr(errXLWriteQuorum, bucket, object), err)
}
}
}
// Tests both object and bucket healing.
func TestHealing(t *testing.T) {
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
defer removeRoots(fsDirs)
z := obj.(*xlZones)
xl := z.zones[0].sets[0]
// Create "bucket"
err = obj.MakeBucketWithLocation(context.Background(), "bucket", "")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
data := make([]byte, 1*humanize.MiByte)
length := int64(len(data))
_, err = rand.Read(data)
if err != nil {
t.Fatal(err)
}
_, err = obj.PutObject(context.Background(), bucket, object, mustGetPutObjReader(t, bytes.NewReader(data), length, "", ""), ObjectOptions{})
if err != nil {
t.Fatal(err)
}
disk := xl.getDisks()[0]
xlMetaPreHeal, err := readXLMeta(context.Background(), disk, bucket, object)
if err != nil {
t.Fatal(err)
}
// Remove the object - to simulate the case where the disk was down when the object
// was created.
err = os.RemoveAll(path.Join(fsDirs[0], bucket, object))
if err != nil {
t.Fatal(err)
}
_, err = xl.HealObject(context.Background(), bucket, object, madmin.HealOpts{ScanMode: madmin.HealNormalScan})
if err != nil {
t.Fatal(err)
}
xlMetaPostHeal, err := readXLMeta(context.Background(), disk, bucket, object)
if err != nil {
t.Fatal(err)
}
// After heal the meta file should be as expected.
if !reflect.DeepEqual(xlMetaPreHeal, xlMetaPostHeal) {
t.Fatal("HealObject failed")
}
err = os.RemoveAll(path.Join(fsDirs[0], bucket, object, "xl.json"))
if err != nil {
t.Fatal(err)
}
// Write xl.json with different modtime to simulate the case where a disk had
// gone down when an object was replaced by a new object.
xlMetaOutDated := xlMetaPreHeal
xlMetaOutDated.Stat.ModTime = time.Now()
err = writeXLMetadata(context.Background(), disk, bucket, object, xlMetaOutDated)
if err != nil {
t.Fatal(err)
}
_, err = xl.HealObject(context.Background(), bucket, object, madmin.HealOpts{ScanMode: madmin.HealDeepScan})
if err != nil {
t.Fatal(err)
}
xlMetaPostHeal, err = readXLMeta(context.Background(), disk, bucket, object)
if err != nil {
t.Fatal(err)
}
// After heal the meta file should be as expected.
if !reflect.DeepEqual(xlMetaPreHeal, xlMetaPostHeal) {
t.Fatal("HealObject failed")
}
// Remove the bucket - to simulate the case where bucket was
// created when the disk was down.
err = os.RemoveAll(path.Join(fsDirs[0], bucket))
if err != nil {
t.Fatal(err)
}
// This would create the bucket.
_, err = xl.HealBucket(context.Background(), bucket, false, false)
if err != nil {
t.Fatal(err)
}
// Stat the bucket to make sure that it was created.
_, err = xl.getDisks()[0].StatVol(bucket)
if err != nil {
t.Fatal(err)
}
}
func TestObjectQuorumFromMeta(t *testing.T) {
ExecObjectLayerTestWithDirs(t, testObjectQuorumFromMeta)
}
func testObjectQuorumFromMeta(obj ObjectLayer, instanceType string, dirs []string, t TestErrHandler) {
bucket := getRandomBucketName()
var opts ObjectOptions
// make data with more than one part
partCount := 3
data := bytes.Repeat([]byte("a"), 6*1024*1024*partCount)
z := obj.(*xlZones)
xl := z.zones[0].sets[0]
xlDisks := xl.getDisks()
err := obj.MakeBucketWithLocation(context.Background(), bucket, globalMinioDefaultRegion)
if err != nil {
t.Fatalf("Failed to make a bucket %v", err)
}
// Object for test case 1 - No StorageClass defined, no MetaData in PutObject
object1 := "object1"
_, err = obj.PutObject(context.Background(), bucket, object1, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), opts)
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts1, errs1 := readAllXLMetadata(context.Background(), xlDisks, bucket, object1)
// Object for test case 2 - No StorageClass defined, MetaData in PutObject requesting RRS Class
object2 := "object2"
metadata2 := make(map[string]string)
metadata2["x-amz-storage-class"] = storageclass.RRS
_, err = obj.PutObject(context.Background(), bucket, object2, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata2})
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts2, errs2 := readAllXLMetadata(context.Background(), xlDisks, bucket, object2)
// Object for test case 3 - No StorageClass defined, MetaData in PutObject requesting Standard Storage Class
object3 := "object3"
metadata3 := make(map[string]string)
metadata3["x-amz-storage-class"] = storageclass.STANDARD
_, err = obj.PutObject(context.Background(), bucket, object3, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata3})
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts3, errs3 := readAllXLMetadata(context.Background(), xlDisks, bucket, object3)
// Object for test case 4 - Standard StorageClass defined as Parity 6, MetaData in PutObject requesting Standard Storage Class
object4 := "object4"
metadata4 := make(map[string]string)
metadata4["x-amz-storage-class"] = storageclass.STANDARD
globalStorageClass = storageclass.Config{
Standard: storageclass.StorageClass{
Parity: 6,
},
}
_, err = obj.PutObject(context.Background(), bucket, object4, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata4})
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts4, errs4 := readAllXLMetadata(context.Background(), xlDisks, bucket, object4)
// Object for test case 5 - RRS StorageClass defined as Parity 2, MetaData in PutObject requesting RRS Class
// Reset global storage class flags
object5 := "object5"
metadata5 := make(map[string]string)
metadata5["x-amz-storage-class"] = storageclass.RRS
globalStorageClass = storageclass.Config{
RRS: storageclass.StorageClass{
Parity: 2,
},
}
_, err = obj.PutObject(context.Background(), bucket, object5, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata5})
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts5, errs5 := readAllXLMetadata(context.Background(), xlDisks, bucket, object5)
// Object for test case 6 - RRS StorageClass defined as Parity 2, MetaData in PutObject requesting Standard Storage Class
object6 := "object6"
metadata6 := make(map[string]string)
metadata6["x-amz-storage-class"] = storageclass.STANDARD
globalStorageClass = storageclass.Config{
RRS: storageclass.StorageClass{
Parity: 2,
},
}
_, err = obj.PutObject(context.Background(), bucket, object6, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata6})
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts6, errs6 := readAllXLMetadata(context.Background(), xlDisks, bucket, object6)
// Object for test case 7 - Standard StorageClass defined as Parity 5, MetaData in PutObject requesting RRS Class
// Reset global storage class flags
object7 := "object7"
metadata7 := make(map[string]string)
metadata7["x-amz-storage-class"] = storageclass.RRS
globalStorageClass = storageclass.Config{
Standard: storageclass.StorageClass{
Parity: 5,
},
}
_, err = obj.PutObject(context.Background(), bucket, object7, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata7})
if err != nil {
t.Fatalf("Failed to putObject %v", err)
}
parts7, errs7 := readAllXLMetadata(context.Background(), xlDisks, bucket, object7)
tests := []struct {
parts []xlMetaV1
errs []error
expectedReadQuorum int
expectedWriteQuorum int
expectedError error
}{
{parts1, errs1, 8, 9, nil},
{parts2, errs2, 14, 15, nil},
{parts3, errs3, 8, 9, nil},
{parts4, errs4, 10, 11, nil},
{parts5, errs5, 14, 15, nil},
{parts6, errs6, 8, 9, nil},
{parts7, errs7, 14, 15, nil},
}
for i, tt := range tests {
actualReadQuorum, actualWriteQuorum, err := objectQuorumFromMeta(context.Background(), *xl, tt.parts, tt.errs)
if tt.expectedError != nil && err == nil {
t.Errorf("Test %d, Expected %s, got %s", i+1, tt.expectedError, err)
return
}
if tt.expectedError == nil && err != nil {
t.Errorf("Test %d, Expected %s, got %s", i+1, tt.expectedError, err)
return
}
if tt.expectedReadQuorum != actualReadQuorum {
t.Errorf("Test %d, Expected Read Quorum %d, got %d", i+1, tt.expectedReadQuorum, actualReadQuorum)
return
}
if tt.expectedWriteQuorum != actualWriteQuorum {
t.Errorf("Test %d, Expected Write Quorum %d, got %d", i+1, tt.expectedWriteQuorum, actualWriteQuorum)
return
}
}
}