This change provides new implementations of the XL backend operations: - create file - read file - heal file Further this change adds table based tests for all three operations. This affects also the bitrot algorithm integration. Algorithms are now integrated in an idiomatic way (like crypto.Hash). Fixes #4696 Fixes #4649 Fixes #4359
235 lines
16 KiB
Go
235 lines
16 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"
|
|
crand "crypto/rand"
|
|
"io"
|
|
"math/rand"
|
|
"testing"
|
|
|
|
humanize "github.com/dustin/go-humanize"
|
|
"github.com/minio/minio/pkg/bpool"
|
|
)
|
|
|
|
func (d badDisk) ReadFile(volume string, path string, offset int64, buf []byte) (n int64, err error) {
|
|
return 0, errFaultyDisk
|
|
}
|
|
|
|
func (d badDisk) ReadFileWithVerify(volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (n int64, err error) {
|
|
return 0, errFaultyDisk
|
|
}
|
|
|
|
var erasureReadFileTests = []struct {
|
|
dataBlocks int
|
|
onDisks, offDisks int
|
|
blocksize, data int64
|
|
offset int64
|
|
length int64
|
|
algorithm BitrotAlgorithm
|
|
shouldFail, shouldFailQuorum bool
|
|
}{
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 0
|
|
{dataBlocks: 3, onDisks: 6, offDisks: 0, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: SHA256, shouldFail: false, shouldFailQuorum: false}, // 1
|
|
{dataBlocks: 4, onDisks: 8, offDisks: 0, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 2
|
|
{dataBlocks: 5, onDisks: 10, offDisks: 0, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 1, length: oneMiByte - 1, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 3
|
|
{dataBlocks: 6, onDisks: 12, offDisks: 0, blocksize: int64(oneMiByte), data: oneMiByte, offset: oneMiByte, length: 0, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 4
|
|
{dataBlocks: 7, onDisks: 14, offDisks: 0, blocksize: int64(oneMiByte), data: oneMiByte, offset: 3, length: 1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 5
|
|
{dataBlocks: 8, onDisks: 16, offDisks: 0, blocksize: int64(oneMiByte), data: oneMiByte, offset: 4, length: 8 * 1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 6
|
|
{dataBlocks: 7, onDisks: 14, offDisks: 7, blocksize: int64(blockSizeV1), data: oneMiByte, offset: oneMiByte, length: 1, algorithm: DefaultBitrotAlgorithm, shouldFail: true, shouldFailQuorum: false}, // 7
|
|
{dataBlocks: 6, onDisks: 12, offDisks: 6, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 8
|
|
{dataBlocks: 5, onDisks: 10, offDisks: 5, blocksize: int64(oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 9
|
|
{dataBlocks: 4, onDisks: 8, offDisks: 4, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: SHA256, shouldFail: false, shouldFailQuorum: false}, // 10
|
|
{dataBlocks: 3, onDisks: 6, offDisks: 3, blocksize: int64(oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 11
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 2, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 12
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 1, blocksize: int64(oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 13
|
|
{dataBlocks: 3, onDisks: 6, offDisks: 2, blocksize: int64(oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 14
|
|
{dataBlocks: 4, onDisks: 8, offDisks: 3, blocksize: int64(2 * oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 15
|
|
{dataBlocks: 5, onDisks: 10, offDisks: 6, blocksize: int64(oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: true}, // 16
|
|
{dataBlocks: 5, onDisks: 10, offDisks: 2, blocksize: int64(blockSizeV1), data: 2 * oneMiByte, offset: oneMiByte, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 17
|
|
{dataBlocks: 5, onDisks: 10, offDisks: 1, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 18
|
|
{dataBlocks: 6, onDisks: 12, offDisks: 3, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: SHA256, shouldFail: false, shouldFailQuorum: false}, // 19
|
|
{dataBlocks: 6, onDisks: 12, offDisks: 7, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: true}, // 20
|
|
{dataBlocks: 8, onDisks: 16, offDisks: 8, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 21
|
|
{dataBlocks: 8, onDisks: 16, offDisks: 9, blocksize: int64(oneMiByte), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: true}, // 22
|
|
{dataBlocks: 8, onDisks: 16, offDisks: 7, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 23
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 1, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 24
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 25
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: oneMiByte, offset: 0, length: oneMiByte, algorithm: 0, shouldFail: true, shouldFailQuorum: false}, // 26
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(blockSizeV1) + 1, offset: 0, length: int64(blockSizeV1) + 1, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 27
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 12, length: int64(blockSizeV1) + 17, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 28
|
|
{dataBlocks: 3, onDisks: 6, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 1023, length: int64(blockSizeV1) + 1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 29
|
|
{dataBlocks: 4, onDisks: 8, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 11, length: int64(blockSizeV1) + 2*1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 30
|
|
{dataBlocks: 6, onDisks: 12, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 512, length: int64(blockSizeV1) + 8*1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 31
|
|
{dataBlocks: 8, onDisks: 16, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: int64(blockSizeV1), length: int64(blockSizeV1) - 1, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 32
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(oneMiByte), offset: -1, length: 3, algorithm: DefaultBitrotAlgorithm, shouldFail: true, shouldFailQuorum: false}, // 33
|
|
{dataBlocks: 2, onDisks: 4, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(oneMiByte), offset: 1024, length: -1, algorithm: DefaultBitrotAlgorithm, shouldFail: true, shouldFailQuorum: false}, // 34
|
|
{dataBlocks: 4, onDisks: 6, offDisks: 0, blocksize: int64(blockSizeV1), data: int64(blockSizeV1), offset: 0, length: int64(blockSizeV1), algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 35
|
|
{dataBlocks: 4, onDisks: 6, offDisks: 1, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 12, length: int64(blockSizeV1) + 17, algorithm: BLAKE2b512, shouldFail: false, shouldFailQuorum: false}, // 36
|
|
{dataBlocks: 4, onDisks: 6, offDisks: 3, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 1023, length: int64(blockSizeV1) + 1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: true}, // 37
|
|
{dataBlocks: 8, onDisks: 12, offDisks: 4, blocksize: int64(blockSizeV1), data: int64(2 * blockSizeV1), offset: 11, length: int64(blockSizeV1) + 2*1024, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false}, // 38
|
|
}
|
|
|
|
func TestErasureReadFile(t *testing.T) {
|
|
for i, test := range erasureReadFileTests {
|
|
setup, err := newErasureTestSetup(test.dataBlocks, test.onDisks-test.dataBlocks, test.blocksize)
|
|
if err != nil {
|
|
t.Fatalf("Test %d: failed to create test setup: %v", i, err)
|
|
}
|
|
storage, err := NewErasureStorage(setup.disks, test.dataBlocks, test.onDisks-test.dataBlocks)
|
|
if err != nil {
|
|
setup.Remove()
|
|
t.Fatalf("Test %d: failed to create ErasureStorage: %v", i, err)
|
|
}
|
|
|
|
data := make([]byte, test.data)
|
|
if _, err = io.ReadFull(crand.Reader, data); err != nil {
|
|
setup.Remove()
|
|
t.Fatalf("Test %d: failed to generate random test data: %v", i, err)
|
|
}
|
|
writeAlgorithm := test.algorithm
|
|
if !test.algorithm.Available() {
|
|
writeAlgorithm = DefaultBitrotAlgorithm
|
|
}
|
|
buffer := make([]byte, test.blocksize, 2*test.blocksize)
|
|
file, err := storage.CreateFile(bytes.NewReader(data[:]), "testbucket", "object", buffer, writeAlgorithm, test.dataBlocks+1)
|
|
if err != nil {
|
|
setup.Remove()
|
|
t.Fatalf("Test %d: failed to create erasure test file: %v", i, err)
|
|
}
|
|
pool := bpool.NewBytePool(getChunkSize(test.blocksize, test.dataBlocks), len(storage.disks))
|
|
writer := bytes.NewBuffer(nil)
|
|
readInfo, err := storage.ReadFile(writer, "testbucket", "object", test.offset, test.length, test.data, file.Checksums, test.algorithm, test.blocksize, pool)
|
|
if err != nil && !test.shouldFail {
|
|
t.Errorf("Test %d: should pass but failed with: %v", i, err)
|
|
}
|
|
if err == nil && test.shouldFail {
|
|
t.Errorf("Test %d: should fail but it passed", i)
|
|
}
|
|
if err == nil {
|
|
if readInfo.Size != test.length {
|
|
t.Errorf("Test %d: read returns wrong number of bytes: got: #%d want: #%d", i, readInfo.Size, test.length)
|
|
}
|
|
if readInfo.Algorithm != test.algorithm {
|
|
t.Errorf("Test %d: read returns wrong algorithm: got: %v want: %v", i, readInfo.Algorithm, test.algorithm)
|
|
}
|
|
if content := writer.Bytes(); !bytes.Equal(content, data[test.offset:test.offset+test.length]) {
|
|
t.Errorf("Test %d: read retruns wrong file content", i)
|
|
}
|
|
}
|
|
if err == nil && !test.shouldFail {
|
|
writer.Reset()
|
|
for j := range storage.disks[:test.offDisks] {
|
|
storage.disks[j] = badDisk{nil}
|
|
}
|
|
if test.offDisks > 0 {
|
|
storage.disks[0] = OfflineDisk
|
|
}
|
|
readInfo, err = storage.ReadFile(writer, "testbucket", "object", test.offset, test.length, test.data, file.Checksums, test.algorithm, test.blocksize, pool)
|
|
if err != nil && !test.shouldFailQuorum {
|
|
t.Errorf("Test %d: should pass but failed with: %v", i, err)
|
|
}
|
|
if err == nil && test.shouldFailQuorum {
|
|
t.Errorf("Test %d: should fail but it passed", i)
|
|
}
|
|
if !test.shouldFailQuorum {
|
|
if readInfo.Size != test.length {
|
|
t.Errorf("Test %d: read returns wrong number of bytes: got: #%d want: #%d", i, readInfo.Size, test.length)
|
|
}
|
|
if readInfo.Algorithm != test.algorithm {
|
|
t.Errorf("Test %d: read returns wrong algorithm: got: %v want: %v", i, readInfo.Algorithm, test.algorithm)
|
|
}
|
|
if content := writer.Bytes(); !bytes.Equal(content, data[test.offset:test.offset+test.length]) {
|
|
t.Errorf("Test %d: read retruns wrong file content", i)
|
|
}
|
|
}
|
|
}
|
|
setup.Remove()
|
|
}
|
|
}
|
|
|
|
// Test erasureReadFile with random offset and lengths.
|
|
// This test is t.Skip()ed as it a long time to run, hence should be run
|
|
// explicitly after commenting out t.Skip()
|
|
func TestErasureReadFileRandomOffsetLength(t *testing.T) {
|
|
// Comment the following line to run this test.
|
|
t.SkipNow()
|
|
// Initialize environment needed for the test.
|
|
dataBlocks := 7
|
|
parityBlocks := 7
|
|
blockSize := int64(1 * humanize.MiByte)
|
|
setup, err := newErasureTestSetup(dataBlocks, parityBlocks, blockSize)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer setup.Remove()
|
|
|
|
storage, err := NewErasureStorage(setup.disks, dataBlocks, parityBlocks)
|
|
if err != nil {
|
|
t.Fatalf("failed to create ErasureStorage: %v", err)
|
|
}
|
|
// Prepare a slice of 5MiB with random data.
|
|
data := make([]byte, 5*humanize.MiByte)
|
|
length := int64(len(data))
|
|
_, err = rand.Read(data)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// 10000 iterations with random offsets and lengths.
|
|
iterations := 10000
|
|
|
|
// Create a test file to read from.
|
|
buffer := make([]byte, blockSize, 2*blockSize)
|
|
file, err := storage.CreateFile(bytes.NewReader(data), "testbucket", "testobject", buffer, DefaultBitrotAlgorithm, dataBlocks+1)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if file.Size != length {
|
|
t.Errorf("erasureCreateFile returned %d, expected %d", file.Size, length)
|
|
}
|
|
|
|
// To generate random offset/length.
|
|
r := rand.New(rand.NewSource(UTCNow().UnixNano()))
|
|
|
|
// create pool buffer which will be used by erasureReadFile for
|
|
// reading from disks and erasure decoding.
|
|
chunkSize := getChunkSize(blockSize, dataBlocks)
|
|
pool := bpool.NewBytePool(chunkSize, len(storage.disks))
|
|
|
|
buf := &bytes.Buffer{}
|
|
|
|
// Verify erasureReadFile() for random offsets and lengths.
|
|
for i := 0; i < iterations; i++ {
|
|
offset := r.Int63n(length)
|
|
readLen := r.Int63n(length - offset)
|
|
|
|
expected := data[offset : offset+readLen]
|
|
|
|
_, err = storage.ReadFile(buf, "testbucket", "testobject", offset, readLen, length, file.Checksums, DefaultBitrotAlgorithm, blockSize, pool)
|
|
if err != nil {
|
|
t.Fatal(err, offset, readLen)
|
|
}
|
|
got := buf.Bytes()
|
|
if !bytes.Equal(expected, got) {
|
|
t.Fatalf("read data is different from what was expected, offset=%d length=%d", offset, readLen)
|
|
}
|
|
buf.Reset()
|
|
}
|
|
}
|