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minio/format-config-v1_test.go

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12 KiB

/*
* 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 main
import (
"bytes"
"testing"
)
// generates a valid format.json for XL backend.
func genFormatXLValid() []*formatConfigV1 {
jbod := make([]string, 8)
formatConfigs := make([]*formatConfigV1, 8)
for index := range jbod {
jbod[index] = getUUID()
}
for index := range jbod {
formatConfigs[index] = &formatConfigV1{
Version: "1",
Format: "xl",
XL: &xlFormat{
Version: "1",
Disk: jbod[index],
JBOD: jbod,
},
}
}
return formatConfigs
}
// generates a invalid format.json version for XL backend.
func genFormatXLInvalidVersion() []*formatConfigV1 {
jbod := make([]string, 8)
formatConfigs := make([]*formatConfigV1, 8)
for index := range jbod {
jbod[index] = getUUID()
}
for index := range jbod {
formatConfigs[index] = &formatConfigV1{
Version: "1",
Format: "xl",
XL: &xlFormat{
Version: "1",
Disk: jbod[index],
JBOD: jbod,
},
}
}
// Corrupt version numbers.
formatConfigs[0].Version = "2"
formatConfigs[3].Version = "-1"
return formatConfigs
}
// generates a invalid format.json JBOD for XL backend.
func genFormatXLInvalidJBOD() []*formatConfigV1 {
jbod := make([]string, 8)
formatConfigs := make([]*formatConfigV1, 8)
for index := range jbod {
jbod[index] = getUUID()
}
for index := range jbod {
formatConfigs[index] = &formatConfigV1{
Version: "1",
Format: "xl",
XL: &xlFormat{
Version: "1",
Disk: jbod[index],
JBOD: jbod,
},
}
}
for index := range jbod {
jbod[index] = getUUID()
}
// Corrupt JBOD entries on disk 6 and disk 8.
formatConfigs[5].XL.JBOD = jbod
formatConfigs[7].XL.JBOD = jbod
return formatConfigs
}
// generates a invalid format.json Disk UUID for XL backend.
func genFormatXLInvalidDisks() []*formatConfigV1 {
jbod := make([]string, 8)
formatConfigs := make([]*formatConfigV1, 8)
for index := range jbod {
jbod[index] = getUUID()
}
for index := range jbod {
formatConfigs[index] = &formatConfigV1{
Version: "1",
Format: "xl",
XL: &xlFormat{
Version: "1",
Disk: jbod[index],
JBOD: jbod,
},
}
}
// Make disk 5 and disk 8 have inconsistent disk uuid's.
formatConfigs[4].XL.Disk = getUUID()
formatConfigs[7].XL.Disk = getUUID()
return formatConfigs
}
// generates a invalid format.json Disk UUID in wrong order for XL backend.
func genFormatXLInvalidDisksOrder() []*formatConfigV1 {
jbod := make([]string, 8)
formatConfigs := make([]*formatConfigV1, 8)
for index := range jbod {
jbod[index] = getUUID()
}
for index := range jbod {
formatConfigs[index] = &formatConfigV1{
Version: "1",
Format: "xl",
XL: &xlFormat{
Version: "1",
Disk: jbod[index],
JBOD: jbod,
},
}
}
// Re order jbod for failure case.
var jbod1 = make([]string, 8)
for i, j := range jbod {
jbod1[i] = j
}
jbod1[1], jbod1[2] = jbod[2], jbod[1]
formatConfigs[2].XL.JBOD = jbod1
return formatConfigs
}
func TestFormatXLHealFreshDisks(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := getXLObjectLayer()
if err != nil {
t.Fatal(err)
}
xl := obj.(xlObjects)
err = obj.MakeBucket("bucket")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
_, err = obj.PutObject(bucket, object, int64(len("abcd")), bytes.NewReader([]byte("abcd")), nil)
if err != nil {
t.Fatal(err)
}
/* // Now, remove two format files.. Load them and reorder
if err = xl.storageDisks[3].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[11].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
} */
// Remove the content of export dir 10 but preserve .minio.sys because it is automatically
// created when minio starts
for i := 3; i <= 5; i++ {
if err = xl.storageDisks[i].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[i].DeleteFile(".minio.sys", "tmp"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[i].DeleteFile(bucket, object+"/xl.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[i].DeleteFile(bucket, object+"/part.1"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[i].DeleteVol(bucket); err != nil {
t.Fatal(err)
}
}
permutedStorageDisks := []StorageAPI{xl.storageDisks[1], xl.storageDisks[4],
xl.storageDisks[2], xl.storageDisks[8], xl.storageDisks[6], xl.storageDisks[7],
xl.storageDisks[0], xl.storageDisks[15], xl.storageDisks[13], xl.storageDisks[14],
xl.storageDisks[3], xl.storageDisks[10], xl.storageDisks[12], xl.storageDisks[9],
xl.storageDisks[5], xl.storageDisks[11]}
// Start healing disks
err = healFormatXLFreshDisks(permutedStorageDisks)
if err != nil {
t.Fatal("healing corrupted disk failed: ", err)
}
// Load again XL format.json to validate it
_, err = loadFormatXL(permutedStorageDisks)
if err != nil {
t.Fatal("loading healed disk failed: ", err)
}
// Clean all
removeRoots(fsDirs)
}
// Simulate XL disks creation, delete some format.json and remove the content of
// a given disk to test healing a corrupted disk
func TestFormatXLHealCorruptedDisks(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := getXLObjectLayer()
if err != nil {
t.Fatal(err)
}
xl := obj.(xlObjects)
err = obj.MakeBucket("bucket")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
_, err = obj.PutObject(bucket, object, int64(len("abcd")), bytes.NewReader([]byte("abcd")), nil)
if err != nil {
t.Fatal(err)
}
// Now, remove two format files.. Load them and reorder
if err = xl.storageDisks[3].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[11].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
// Remove the content of export dir 10 but preserve .minio.sys because it is automatically
// created when minio starts
if err = xl.storageDisks[10].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[10].DeleteFile(".minio.sys", "tmp"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[10].DeleteFile(bucket, object+"/xl.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[10].DeleteFile(bucket, object+"/part.1"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[10].DeleteVol(bucket); err != nil {
t.Fatal(err)
}
permutedStorageDisks := []StorageAPI{xl.storageDisks[1], xl.storageDisks[4],
xl.storageDisks[2], xl.storageDisks[8], xl.storageDisks[6], xl.storageDisks[7],
xl.storageDisks[0], xl.storageDisks[15], xl.storageDisks[13], xl.storageDisks[14],
xl.storageDisks[3], xl.storageDisks[10], xl.storageDisks[12], xl.storageDisks[9],
xl.storageDisks[5], xl.storageDisks[11]}
// Start healing disks
err = healFormatXLCorruptedDisks(permutedStorageDisks)
if err != nil {
t.Fatal("healing corrupted disk failed: ", err)
}
// Load again XL format.json to validate it
_, err = loadFormatXL(permutedStorageDisks)
if err != nil {
t.Fatal("loading healed disk failed: ", err)
}
// Clean all
removeRoots(fsDirs)
}
// Test on ReorderByInspection by simulating creating disks and removing
// some of format.json
func TestFormatXLReorderByInspection(t *testing.T) {
// Create an instance of xl backend.
obj, fsDirs, err := getXLObjectLayer()
if err != nil {
t.Fatal(err)
}
xl := obj.(xlObjects)
err = obj.MakeBucket("bucket")
if err != nil {
t.Fatal(err)
}
bucket := "bucket"
object := "object"
_, err = obj.PutObject(bucket, object, int64(len("abcd")), bytes.NewReader([]byte("abcd")), nil)
if err != nil {
t.Fatal(err)
}
// Now, remove two format files.. Load them and reorder
if err = xl.storageDisks[3].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
if err = xl.storageDisks[5].DeleteFile(".minio.sys", "format.json"); err != nil {
t.Fatal(err)
}
permutedStorageDisks := []StorageAPI{xl.storageDisks[1], xl.storageDisks[4],
xl.storageDisks[2], xl.storageDisks[8], xl.storageDisks[6], xl.storageDisks[7],
xl.storageDisks[0], xl.storageDisks[15], xl.storageDisks[13], xl.storageDisks[14],
xl.storageDisks[3], xl.storageDisks[10], xl.storageDisks[12], xl.storageDisks[9],
xl.storageDisks[5], xl.storageDisks[11]}
permutedFormatConfigs, _ := loadAllFormats(permutedStorageDisks)
orderedDisks, err := reorderDisks(permutedStorageDisks, permutedFormatConfigs)
if err != nil {
t.Fatal("error reordering disks\n")
}
orderedDisks, err = reorderDisksByInspection(orderedDisks, permutedStorageDisks, permutedFormatConfigs)
if err != nil {
t.Fatal("failed to reorder disk by inspection")
}
// Check disks reordering
for i := 0; i <= 15; i++ {
if orderedDisks[i] == nil && i != 3 && i != 5 {
t.Fatal("should not be nil")
}
if orderedDisks[i] != nil && orderedDisks[i] != xl.storageDisks[i] {
t.Fatal("Disks were not ordered correctly.")
}
}
removeRoots(fsDirs)
}
// Wrapper for calling FormatXL tests - currently validates
// - valid format
// - unrecognized version number
// - invalid JBOD
// - invalid Disk uuid
func TestFormatXL(t *testing.T) {
formatInputCases := [][]*formatConfigV1{
genFormatXLValid(),
genFormatXLInvalidVersion(),
genFormatXLInvalidJBOD(),
genFormatXLInvalidDisks(),
genFormatXLInvalidDisksOrder(),
}
testCases := []struct {
formatConfigs []*formatConfigV1
shouldPass bool
}{
{
formatConfigs: formatInputCases[0],
shouldPass: true,
},
{
formatConfigs: formatInputCases[1],
shouldPass: false,
},
{
formatConfigs: formatInputCases[2],
shouldPass: false,
},
{
formatConfigs: formatInputCases[3],
shouldPass: false,
},
{
formatConfigs: formatInputCases[4],
shouldPass: false,
},
}
for i, testCase := range testCases {
err := checkFormatXL(testCase.formatConfigs)
if err != nil && testCase.shouldPass {
t.Errorf("Test %d: Expected to pass but failed with %s", i+1, err)
}
if err == nil && !testCase.shouldPass {
t.Errorf("Test %d: Expected to fail but passed instead", i+1)
}
}
}
// Tests uuid order verification function.
func TestSavedUUIDOrder(t *testing.T) {
uuidTestCases := make([]struct {
uuid string
shouldPass bool
}, 8)
jbod := make([]string, 8)
formatConfigs := make([]*formatConfigV1, 8)
for index := range jbod {
jbod[index] = getUUID()
uuidTestCases[index].uuid = jbod[index]
uuidTestCases[index].shouldPass = true
}
for index := range jbod {
formatConfigs[index] = &formatConfigV1{
Version: "1",
Format: "xl",
XL: &xlFormat{
Version: "1",
Disk: jbod[index],
JBOD: jbod,
},
}
}
// Re order jbod for failure case.
var jbod1 = make([]string, 8)
for i, j := range jbod {
jbod1[i] = j
}
jbod1[1], jbod1[2] = jbod[2], jbod[1]
formatConfigs[2].XL.JBOD = jbod1
uuidTestCases[1].shouldPass = false
uuidTestCases[2].shouldPass = false
for i, testCase := range uuidTestCases {
// Is uuid present on all JBOD ?.
if testCase.shouldPass != isSavedUUIDInOrder(testCase.uuid, formatConfigs) {
t.Errorf("Test %d: Expected to pass but failed", i+1)
}
}
}