mirror of
https://github.com/minio/minio.git
synced 2025-11-04 10:11:09 +01:00
029758cb20
only newly replaced drives get the new `format.json`, this avoids disks reloading their in-memory reference format, ensures that drives are online without reloading the in-memory reference format. keeping reference format in-tact means UUIDs never change once they are formatted.
470 lines
12 KiB
Go
470 lines
12 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"encoding/json"
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"errors"
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"io/ioutil"
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"os"
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"reflect"
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"testing"
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)
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// tests fixFormatErasureV3 - fix format.json on all disks.
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func TestFixFormatV3(t *testing.T) {
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erasureDirs, err := getRandomDisks(8)
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if err != nil {
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t.Fatal(err)
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}
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for _, erasureDir := range erasureDirs {
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defer os.RemoveAll(erasureDir)
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}
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endpoints := mustGetNewEndpoints(erasureDirs...)
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storageDisks, errs := initStorageDisksWithErrors(endpoints)
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for _, err := range errs {
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if err != nil && err != errDiskNotFound {
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t.Fatal(err)
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}
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}
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format := newFormatErasureV3(1, 8, "CRCMOD")
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formats := make([]*formatErasureV3, 8)
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for j := 0; j < 8; j++ {
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newFormat := format.Clone()
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newFormat.Erasure.This = format.Erasure.Sets[0][j]
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formats[j] = newFormat
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}
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if err = initErasureMetaVolumesInLocalDisks(storageDisks, formats); err != nil {
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t.Fatal(err)
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}
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formats[1] = nil
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expThis := formats[2].Erasure.This
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formats[2].Erasure.This = ""
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if err := fixFormatErasureV3(storageDisks, endpoints, formats); err != nil {
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t.Fatal(err)
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}
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newFormats, errs := loadFormatErasureAll(storageDisks, false)
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for _, err := range errs {
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if err != nil && err != errUnformattedDisk {
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t.Fatal(err)
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}
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}
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gotThis := newFormats[2].Erasure.This
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if expThis != gotThis {
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t.Fatalf("expected uuid %s, got %s", expThis, gotThis)
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}
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}
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// tests formatErasureV3ThisEmpty conditions.
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func TestFormatErasureEmpty(t *testing.T) {
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format := newFormatErasureV3(1, 16, "CRCMOD")
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formats := make([]*formatErasureV3, 16)
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for j := 0; j < 16; j++ {
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newFormat := format.Clone()
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newFormat.Erasure.This = format.Erasure.Sets[0][j]
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formats[j] = newFormat
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}
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// empty format to indicate disk not found, but this
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// empty should return false.
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formats[0] = nil
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if ok := formatErasureV3ThisEmpty(formats); ok {
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t.Fatalf("expected value false, got %t", ok)
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}
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formats[2].Erasure.This = ""
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if ok := formatErasureV3ThisEmpty(formats); !ok {
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t.Fatalf("expected value true, got %t", ok)
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}
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}
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// Tests xl format migration.
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func TestFormatErasureMigrate(t *testing.T) {
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// Get test root.
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rootPath, err := getTestRoot()
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(rootPath)
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m := &formatErasureV1{}
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m.Format = formatBackendErasure
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m.Version = formatMetaVersionV1
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m.Erasure.Version = formatErasureVersionV1
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m.Erasure.Disk = mustGetUUID()
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m.Erasure.JBOD = []string{m.Erasure.Disk, mustGetUUID(), mustGetUUID(), mustGetUUID()}
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b, err := json.Marshal(m)
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if err != nil {
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t.Fatal(err)
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}
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if err = os.MkdirAll(pathJoin(rootPath, minioMetaBucket), os.FileMode(0755)); err != nil {
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t.Fatal(err)
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}
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if err = ioutil.WriteFile(pathJoin(rootPath, minioMetaBucket, formatConfigFile), b, os.FileMode(0644)); err != nil {
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t.Fatal(err)
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}
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if err = formatErasureMigrate(rootPath); err != nil {
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t.Fatal(err)
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}
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migratedVersion, err := formatGetBackendErasureVersion(pathJoin(rootPath, minioMetaBucket, formatConfigFile))
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if err != nil {
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t.Fatal(err)
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}
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if migratedVersion != formatErasureVersionV3 {
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t.Fatalf("expected version: %s, got: %s", formatErasureVersionV3, migratedVersion)
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}
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b, err = ioutil.ReadFile(pathJoin(rootPath, minioMetaBucket, formatConfigFile))
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if err != nil {
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t.Fatal(err)
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}
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formatV3 := &formatErasureV3{}
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if err = json.Unmarshal(b, formatV3); err != nil {
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t.Fatal(err)
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}
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if formatV3.Erasure.This != m.Erasure.Disk {
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t.Fatalf("expected disk uuid: %s, got: %s", m.Erasure.Disk, formatV3.Erasure.This)
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}
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if len(formatV3.Erasure.Sets) != 1 {
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t.Fatalf("expected single set after migrating from v1 to v3, but found %d", len(formatV3.Erasure.Sets))
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}
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if !reflect.DeepEqual(formatV3.Erasure.Sets[0], m.Erasure.JBOD) {
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t.Fatalf("expected disk uuid: %v, got: %v", m.Erasure.JBOD, formatV3.Erasure.Sets[0])
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}
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m = &formatErasureV1{}
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m.Format = "unknown"
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m.Version = formatMetaVersionV1
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m.Erasure.Version = formatErasureVersionV1
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m.Erasure.Disk = mustGetUUID()
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m.Erasure.JBOD = []string{m.Erasure.Disk, mustGetUUID(), mustGetUUID(), mustGetUUID()}
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b, err = json.Marshal(m)
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if err != nil {
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t.Fatal(err)
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}
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if err = ioutil.WriteFile(pathJoin(rootPath, minioMetaBucket, formatConfigFile), b, os.FileMode(0644)); err != nil {
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t.Fatal(err)
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}
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if err = formatErasureMigrate(rootPath); err == nil {
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t.Fatal("Expected to fail with unexpected backend format")
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}
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m = &formatErasureV1{}
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m.Format = formatBackendErasure
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m.Version = formatMetaVersionV1
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m.Erasure.Version = "30"
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m.Erasure.Disk = mustGetUUID()
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m.Erasure.JBOD = []string{m.Erasure.Disk, mustGetUUID(), mustGetUUID(), mustGetUUID()}
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b, err = json.Marshal(m)
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if err != nil {
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t.Fatal(err)
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}
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if err = ioutil.WriteFile(pathJoin(rootPath, minioMetaBucket, formatConfigFile), b, os.FileMode(0644)); err != nil {
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t.Fatal(err)
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}
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if err = formatErasureMigrate(rootPath); err == nil {
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t.Fatal("Expected to fail with unexpected backend format version number")
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}
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}
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// Tests check format xl value.
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func TestCheckFormatErasureValue(t *testing.T) {
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testCases := []struct {
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format *formatErasureV3
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success bool
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}{
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// Invalid Erasure format version "2".
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{
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&formatErasureV3{
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formatMetaV1: formatMetaV1{
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Version: "2",
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Format: "Erasure",
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},
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Erasure: struct {
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Version string `json:"version"`
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This string `json:"this"`
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Sets [][]string `json:"sets"`
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DistributionAlgo string `json:"distributionAlgo"`
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}{
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Version: "2",
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},
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},
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false,
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},
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// Invalid Erasure format "Unknown".
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{
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&formatErasureV3{
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formatMetaV1: formatMetaV1{
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Version: "1",
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Format: "Unknown",
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},
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Erasure: struct {
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Version string `json:"version"`
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This string `json:"this"`
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Sets [][]string `json:"sets"`
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DistributionAlgo string `json:"distributionAlgo"`
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}{
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Version: "2",
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},
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},
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false,
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},
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// Invalid Erasure format version "0".
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{
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&formatErasureV3{
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formatMetaV1: formatMetaV1{
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Version: "1",
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Format: "Erasure",
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},
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Erasure: struct {
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Version string `json:"version"`
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This string `json:"this"`
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Sets [][]string `json:"sets"`
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DistributionAlgo string `json:"distributionAlgo"`
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}{
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Version: "0",
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},
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},
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false,
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},
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}
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// Valid all test cases.
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for i, testCase := range testCases {
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if err := checkFormatErasureValue(testCase.format); err != nil && testCase.success {
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t.Errorf("Test %d: Expected failure %s", i+1, err)
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}
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}
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}
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// Tests getFormatErasureInQuorum()
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func TestGetFormatErasureInQuorumCheck(t *testing.T) {
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setCount := 2
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setDriveCount := 16
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format := newFormatErasureV3(setCount, setDriveCount, "CRCMOD")
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formats := make([]*formatErasureV3, 32)
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for i := 0; i < setCount; i++ {
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for j := 0; j < setDriveCount; j++ {
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newFormat := format.Clone()
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newFormat.Erasure.This = format.Erasure.Sets[i][j]
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formats[i*setDriveCount+j] = newFormat
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}
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}
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// Return a format from list of formats in quorum.
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quorumFormat, err := getFormatErasureInQuorum(formats)
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if err != nil {
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t.Fatal(err)
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}
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// Check if the reference format and input formats are same.
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if err = formatErasureV3Check(quorumFormat, formats[0]); err != nil {
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t.Fatal(err)
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}
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// QuorumFormat has .This field empty on purpose, expect a failure.
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if err = formatErasureV3Check(formats[0], quorumFormat); err == nil {
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t.Fatal("Unexpected success")
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}
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formats[0] = nil
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quorumFormat, err = getFormatErasureInQuorum(formats)
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if err != nil {
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t.Fatal(err)
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}
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badFormat := *quorumFormat
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badFormat.Erasure.Sets = nil
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if err = formatErasureV3Check(quorumFormat, &badFormat); err == nil {
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t.Fatal("Unexpected success")
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}
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badFormatUUID := *quorumFormat
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badFormatUUID.Erasure.Sets[0][0] = "bad-uuid"
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if err = formatErasureV3Check(quorumFormat, &badFormatUUID); err == nil {
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t.Fatal("Unexpected success")
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}
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badFormatSetSize := *quorumFormat
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badFormatSetSize.Erasure.Sets[0] = nil
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if err = formatErasureV3Check(quorumFormat, &badFormatSetSize); err == nil {
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t.Fatal("Unexpected success")
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}
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for i := range formats {
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if i < 17 {
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formats[i] = nil
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}
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}
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if _, err = getFormatErasureInQuorum(formats); err == nil {
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t.Fatal("Unexpected success")
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}
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}
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// Tests formatErasureGetDeploymentID()
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func TestGetErasureID(t *testing.T) {
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setCount := 2
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setDriveCount := 8
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format := newFormatErasureV3(setCount, setDriveCount, "CRCMOD")
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formats := make([]*formatErasureV3, 16)
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for i := 0; i < setCount; i++ {
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for j := 0; j < setDriveCount; j++ {
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newFormat := format.Clone()
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newFormat.Erasure.This = format.Erasure.Sets[i][j]
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formats[i*setDriveCount+j] = newFormat
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}
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}
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// Return a format from list of formats in quorum.
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quorumFormat, err := getFormatErasureInQuorum(formats)
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if err != nil {
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t.Fatal(err)
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}
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// Check if the reference format and input formats are same.
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var id string
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if id, err = formatErasureGetDeploymentID(quorumFormat, formats); err != nil {
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t.Fatal(err)
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}
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if id == "" {
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t.Fatal("ID cannot be empty.")
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}
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formats[0] = nil
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if id, err = formatErasureGetDeploymentID(quorumFormat, formats); err != nil {
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t.Fatal(err)
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}
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if id == "" {
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t.Fatal("ID cannot be empty.")
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}
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formats[1].Erasure.Sets[0][0] = "bad-uuid"
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if id, err = formatErasureGetDeploymentID(quorumFormat, formats); err != nil {
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t.Fatal(err)
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}
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if id == "" {
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t.Fatal("ID cannot be empty.")
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}
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formats[2].ID = "bad-id"
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if _, err = formatErasureGetDeploymentID(quorumFormat, formats); !errors.Is(err, errCorruptedFormat) {
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t.Fatalf("Unexpect error %s", err)
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}
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}
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// Initialize new format sets.
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func TestNewFormatSets(t *testing.T) {
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setCount := 2
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setDriveCount := 16
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format := newFormatErasureV3(setCount, setDriveCount, "CRCMOD")
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formats := make([]*formatErasureV3, 32)
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errs := make([]error, 32)
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for i := 0; i < setCount; i++ {
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for j := 0; j < setDriveCount; j++ {
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newFormat := format.Clone()
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newFormat.Erasure.This = format.Erasure.Sets[i][j]
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formats[i*setDriveCount+j] = newFormat
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}
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}
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quorumFormat, err := getFormatErasureInQuorum(formats)
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if err != nil {
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t.Fatal(err)
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}
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// 16th disk is unformatted.
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errs[15] = errUnformattedDisk
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newFormats := newHealFormatSets(quorumFormat, setCount, setDriveCount, formats, errs)
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if newFormats == nil {
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t.Fatal("Unexpected failure")
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}
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// Check if deployment IDs are preserved.
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for i := range newFormats {
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for j := range newFormats[i] {
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if newFormats[i][j] == nil {
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continue
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}
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if newFormats[i][j].ID != quorumFormat.ID {
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t.Fatal("Deployment id in the new format is lost")
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}
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}
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}
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}
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func BenchmarkInitStorageDisks256(b *testing.B) {
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benchmarkInitStorageDisksN(b, 256)
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}
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func BenchmarkInitStorageDisks1024(b *testing.B) {
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benchmarkInitStorageDisksN(b, 1024)
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}
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func BenchmarkInitStorageDisks2048(b *testing.B) {
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benchmarkInitStorageDisksN(b, 2048)
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}
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func BenchmarkInitStorageDisksMax(b *testing.B) {
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benchmarkInitStorageDisksN(b, 32*204)
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}
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func benchmarkInitStorageDisksN(b *testing.B, nDisks int) {
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b.ResetTimer()
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b.ReportAllocs()
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fsDirs, err := getRandomDisks(nDisks)
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if err != nil {
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b.Fatal(err)
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}
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endpoints := mustGetNewEndpoints(fsDirs...)
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b.RunParallel(func(pb *testing.PB) {
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endpoints := endpoints
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for pb.Next() {
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initStorageDisksWithErrors(endpoints)
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}
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})
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}
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