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minio/cmd/xl-v1-object_test.go

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/*
* 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"
)
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 TestXLDeleteObjectDiskNotFound(t *testing.T) {
// Reset global storage class flags
resetGlobalStorageEnvs()
// Create an instance of xl backend.
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
xl := obj.(*xlObjects)
// 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.
for i := range xl.storageDisks[:7] {
xl.storageDisks[i] = newNaughtyDisk(xl.storageDisks[i], nil, errFaultyDisk)
}
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.
xl.storageDisks[7] = nil
xl.storageDisks[8] = nil
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)
}
// Cleanup backend directories
removeRoots(fsDirs)
}
func TestGetObjectNoQuorum(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
xl := obj.(*xlObjects)
// 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
}
for i := range xl.storageDisks[:9] {
switch diskType := xl.storageDisks[i].(type) {
case *naughtyDisk:
xl.storageDisks[i] = newNaughtyDisk(diskType.disk, diskErrors, errFaultyDisk)
default:
xl.storageDisks[i] = newNaughtyDisk(xl.storageDisks[i], diskErrors, errFaultyDisk)
}
}
// 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)
}
}
// Cleanup backend directories.
removeRoots(fsDirs)
}
func TestPutObjectNoQuorum(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
xl := obj.(*xlObjects)
// 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
}
for i := range xl.storageDisks[:9] {
switch diskType := xl.storageDisks[i].(type) {
case *naughtyDisk:
xl.storageDisks[i] = newNaughtyDisk(diskType.disk, diskErrors, errFaultyDisk)
default:
xl.storageDisks[i] = newNaughtyDisk(xl.storageDisks[i], diskErrors, errFaultyDisk)
}
}
// 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)
}
}
// Cleanup backend directories.
removeRoots(fsDirs)
}
// Tests both object and bucket healing.
func TestHealing(t *testing.T) {
obj, fsDirs, err := prepareXL16()
if err != nil {
t.Fatal(err)
}
defer removeRoots(fsDirs)
xl := obj.(*xlObjects)
// 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.storageDisks[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, false, false)
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, false, false)
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.storageDisks[0].StatVol(bucket)
if err != nil {
t.Fatal(err)
}
}