mirror of
https://github.com/minio/minio.git
synced 2024-12-25 06:35:56 -05:00
333 lines
9.3 KiB
Go
333 lines
9.3 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2016, 2017 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"
|
|
"path/filepath"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
// validates functionality provided to find most common
|
|
// time occurrence from a list of time.
|
|
func TestCommonTime(t *testing.T) {
|
|
// List of test cases for common modTime.
|
|
testCases := []struct {
|
|
times []time.Time
|
|
time time.Time
|
|
}{
|
|
{
|
|
// 1. Tests common times when slice has varying time elements.
|
|
[]time.Time{
|
|
time.Unix(0, 1).UTC(),
|
|
time.Unix(0, 2).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 2).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 1).UTC(),
|
|
}, time.Unix(0, 3).UTC(),
|
|
},
|
|
{
|
|
// 2. Tests common time obtained when all elements are equal.
|
|
[]time.Time{
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
}, time.Unix(0, 3).UTC(),
|
|
},
|
|
{
|
|
// 3. Tests common time obtained when elements have a mixture
|
|
// of sentinel values.
|
|
[]time.Time{
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 2).UTC(),
|
|
time.Unix(0, 1).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
time.Unix(0, 4).UTC(),
|
|
time.Unix(0, 3).UTC(),
|
|
timeSentinel,
|
|
timeSentinel,
|
|
timeSentinel,
|
|
}, time.Unix(0, 3).UTC(),
|
|
},
|
|
}
|
|
|
|
// Tests all the testcases, and validates them against expected
|
|
// common modtime. Tests fail if modtime does not match.
|
|
for i, testCase := range testCases {
|
|
// Obtain a common mod time from modTimes slice.
|
|
ctime, _ := commonTime(testCase.times)
|
|
if testCase.time != ctime {
|
|
t.Fatalf("Test case %d, expect to pass but failed. Wanted modTime: %s, got modTime: %s\n", i+1, testCase.time, ctime)
|
|
}
|
|
}
|
|
}
|
|
|
|
// partsMetaFromModTimes - returns slice of modTimes given metadata of
|
|
// an object part.
|
|
func partsMetaFromModTimes(modTimes []time.Time, checksums []checkSumInfo) []xlMetaV1 {
|
|
var partsMetadata []xlMetaV1
|
|
for _, modTime := range modTimes {
|
|
partsMetadata = append(partsMetadata, xlMetaV1{
|
|
Erasure: erasureInfo{
|
|
Checksum: checksums,
|
|
},
|
|
Stat: statInfo{
|
|
ModTime: modTime,
|
|
},
|
|
Parts: []objectPartInfo{
|
|
{
|
|
Name: "part.1",
|
|
},
|
|
},
|
|
})
|
|
}
|
|
return partsMetadata
|
|
}
|
|
|
|
// toPosix - fetches *posix object from StorageAPI.
|
|
func toPosix(disk StorageAPI) *posix {
|
|
retryDisk, ok := disk.(*retryStorage)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
pDisk, ok := retryDisk.remoteStorage.(*posix)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
return pDisk
|
|
|
|
}
|
|
|
|
// TestListOnlineDisks - checks if listOnlineDisks and outDatedDisks
|
|
// are consistent with each other.
|
|
func TestListOnlineDisks(t *testing.T) {
|
|
rootPath, err := newTestConfig(globalMinioDefaultRegion)
|
|
if err != nil {
|
|
t.Fatalf("Failed to initialize config - %v", err)
|
|
}
|
|
defer removeAll(rootPath)
|
|
|
|
obj, disks, err := prepareXL()
|
|
if err != nil {
|
|
t.Fatalf("Prepare XL backend failed - %v", err)
|
|
}
|
|
defer removeRoots(disks)
|
|
|
|
type tamperKind int
|
|
const (
|
|
noTamper tamperKind = iota
|
|
deletePart tamperKind = iota
|
|
corruptPart tamperKind = iota
|
|
)
|
|
threeNanoSecs := time.Unix(0, 3).UTC()
|
|
fourNanoSecs := time.Unix(0, 4).UTC()
|
|
modTimesThreeNone := []time.Time{
|
|
threeNanoSecs, threeNanoSecs, threeNanoSecs, threeNanoSecs,
|
|
threeNanoSecs, threeNanoSecs, threeNanoSecs,
|
|
timeSentinel, timeSentinel, timeSentinel, timeSentinel,
|
|
timeSentinel, timeSentinel, timeSentinel, timeSentinel,
|
|
timeSentinel,
|
|
}
|
|
modTimesThreeFour := []time.Time{
|
|
threeNanoSecs, threeNanoSecs, threeNanoSecs, threeNanoSecs,
|
|
threeNanoSecs, threeNanoSecs, threeNanoSecs, threeNanoSecs,
|
|
fourNanoSecs, fourNanoSecs, fourNanoSecs, fourNanoSecs,
|
|
fourNanoSecs, fourNanoSecs, fourNanoSecs, fourNanoSecs,
|
|
}
|
|
testCases := []struct {
|
|
modTimes []time.Time
|
|
expectedTime time.Time
|
|
errs []error
|
|
_tamperBackend tamperKind
|
|
}{
|
|
{
|
|
modTimes: modTimesThreeFour,
|
|
expectedTime: fourNanoSecs,
|
|
errs: []error{
|
|
nil, nil, nil, nil, nil, nil, nil, nil, nil,
|
|
nil, nil, nil, nil, nil, nil, nil,
|
|
},
|
|
_tamperBackend: noTamper,
|
|
},
|
|
{
|
|
modTimes: modTimesThreeNone,
|
|
expectedTime: threeNanoSecs,
|
|
errs: []error{
|
|
// Disks that have a valid xl.json.
|
|
nil, nil, nil, nil, nil, nil, nil,
|
|
// Majority of disks don't have xl.json.
|
|
errFileNotFound, errFileNotFound,
|
|
errFileNotFound, errFileNotFound,
|
|
errFileNotFound, errDiskAccessDenied,
|
|
errDiskNotFound, errFileNotFound,
|
|
errFileNotFound,
|
|
},
|
|
_tamperBackend: deletePart,
|
|
},
|
|
{
|
|
modTimes: modTimesThreeNone,
|
|
expectedTime: threeNanoSecs,
|
|
errs: []error{
|
|
// Disks that have a valid xl.json.
|
|
nil, nil, nil, nil, nil, nil, nil,
|
|
// Majority of disks don't have xl.json.
|
|
errFileNotFound, errFileNotFound,
|
|
errFileNotFound, errFileNotFound,
|
|
errFileNotFound, errDiskAccessDenied,
|
|
errDiskNotFound, errFileNotFound,
|
|
errFileNotFound,
|
|
},
|
|
_tamperBackend: corruptPart,
|
|
},
|
|
}
|
|
|
|
bucket := "bucket"
|
|
object := "object"
|
|
data := bytes.Repeat([]byte("a"), 1024)
|
|
xlDisks := obj.(*xlObjects).storageDisks
|
|
for i, test := range testCases {
|
|
// Prepare bucket/object backend for the tests below.
|
|
|
|
// Cleanup from previous test.
|
|
obj.DeleteObject(bucket, object)
|
|
obj.DeleteBucket(bucket)
|
|
|
|
err = obj.MakeBucket("bucket")
|
|
if err != nil {
|
|
t.Fatalf("Failed to make a bucket %v", err)
|
|
}
|
|
|
|
_, err = obj.PutObject(bucket, object, int64(len(data)), bytes.NewReader(data), nil, "")
|
|
if err != nil {
|
|
t.Fatalf("Failed to putObject %v", err)
|
|
}
|
|
|
|
// Fetch xl.json from first disk to construct partsMetadata for the tests.
|
|
xlMeta, err := readXLMeta(xlDisks[0], bucket, object)
|
|
if err != nil {
|
|
t.Fatalf("Test %d: Failed to read xl.json %v", i+1, err)
|
|
}
|
|
|
|
tamperedIndex := -1
|
|
switch test._tamperBackend {
|
|
case deletePart:
|
|
for index, err := range test.errs {
|
|
if err != nil {
|
|
continue
|
|
}
|
|
// Remove a part from a disk
|
|
// which has a valid xl.json,
|
|
// and check if that disk
|
|
// appears in outDatedDisks.
|
|
tamperedIndex = index
|
|
dErr := xlDisks[index].DeleteFile(bucket, filepath.Join(object, "part.1"))
|
|
if dErr != nil {
|
|
t.Fatalf("Test %d: Failed to delete %s - %v", i+1,
|
|
filepath.Join(object, "part.1"), dErr)
|
|
}
|
|
break
|
|
}
|
|
case corruptPart:
|
|
for index, err := range test.errs {
|
|
if err != nil {
|
|
continue
|
|
}
|
|
// Corrupt a part from a disk
|
|
// which has a valid xl.json,
|
|
// and check if that disk
|
|
// appears in outDatedDisks.
|
|
tamperedIndex = index
|
|
dErr := xlDisks[index].AppendFile(bucket, filepath.Join(object, "part.1"), []byte("corruption"))
|
|
if dErr != nil {
|
|
t.Fatalf("Test %d: Failed to append corrupting data at the end of file %s - %v",
|
|
i+1, filepath.Join(object, "part.1"), dErr)
|
|
}
|
|
break
|
|
}
|
|
|
|
}
|
|
|
|
partsMetadata := partsMetaFromModTimes(test.modTimes, xlMeta.Erasure.Checksum)
|
|
|
|
onlineDisks, modTime := listOnlineDisks(xlDisks, partsMetadata, test.errs)
|
|
availableDisks, newErrs, _ := disksWithAllParts(onlineDisks, partsMetadata, test.errs, bucket, object)
|
|
test.errs = newErrs
|
|
outdatedDisks := outDatedDisks(xlDisks, availableDisks, test.errs, partsMetadata, bucket, object)
|
|
if modTime.Equal(timeSentinel) {
|
|
t.Fatalf("Test %d: modTime should never be equal to timeSentinel, but found equal",
|
|
i+1)
|
|
}
|
|
|
|
if test._tamperBackend != noTamper {
|
|
if tamperedIndex != -1 && outdatedDisks[tamperedIndex] == nil {
|
|
t.Fatalf("Test %d: disk (%v) with part.1 missing is an outdated disk, but wasn't listed by outDatedDisks",
|
|
i+1, xlDisks[tamperedIndex])
|
|
}
|
|
|
|
}
|
|
|
|
if !modTime.Equal(test.expectedTime) {
|
|
t.Fatalf("Test %d: Expected modTime to be equal to %v but was found to be %v",
|
|
i+1, test.expectedTime, modTime)
|
|
}
|
|
|
|
// Check if a disk is considered both online and outdated,
|
|
// which is a contradiction, except if parts are missing.
|
|
overlappingDisks := make(map[string]*posix)
|
|
for _, availableDisk := range availableDisks {
|
|
if availableDisk == nil {
|
|
continue
|
|
}
|
|
pDisk := toPosix(availableDisk)
|
|
overlappingDisks[pDisk.diskPath] = pDisk
|
|
}
|
|
|
|
for index, outdatedDisk := range outdatedDisks {
|
|
// ignore the intentionally tampered disk,
|
|
// this is expected to appear as outdated
|
|
// disk, since it doesn't have all the parts.
|
|
if index == tamperedIndex {
|
|
continue
|
|
}
|
|
|
|
if outdatedDisk == nil {
|
|
continue
|
|
}
|
|
|
|
pDisk := toPosix(outdatedDisk)
|
|
if _, ok := overlappingDisks[pDisk.diskPath]; ok {
|
|
t.Errorf("Test %d: Outdated disk %v was also detected as an online disk - %v %v",
|
|
i+1, pDisk, availableDisks, outdatedDisks)
|
|
}
|
|
|
|
// errors other than errFileNotFound doesn't imply that the disk is outdated.
|
|
if test.errs[index] != nil && test.errs[index] != errFileNotFound && outdatedDisk != nil {
|
|
t.Errorf("Test %d: error (%v) other than errFileNotFound doesn't imply that the disk (%v) could be outdated",
|
|
i+1, test.errs[index], pDisk)
|
|
}
|
|
}
|
|
}
|
|
}
|